v3.29.1

changelog.md

@@ -1,5 +1,131 @@
 # Changelog
 
+## 2026-01-03 - 3.29.1 - fix(dees-appui)
+prevent main grid overflow by adding overflow:hidden; and add Playwright scroll containment screenshots
+
+- Add overflow: hidden to .maingrid in ts_web/elements/00group-appui/dees-appui/dees-appui.ts to prevent content from escaping during grid-template-columns transitions.
+- Add Playwright artifacts: .playwright-mcp/after-scroll.png and .playwright-mcp/scroll-containment-check.png (screenshots for scroll containment testing).
+
+## 2026-01-03 - 3.29.0 - feat(docs)
+add documentation for new input components, activity log features, theming, and expand DeesAppui docs
+
+- Updated top-level README to reflect component count increase (75+ → 80+) and added many new component docs
+- Added documentation and examples for DeesInputList (sortable list input) and DeesInputProfilepicture (cropping, upload, processing)
+- Introduced DeesTheme documentation with usage examples and CSS custom property overrides
+- Expanded DeesAppui readme with architecture overview, activity log panel docs, activity entry types, and navigation/secondary menu guidance
+- Documented activity log APIs and controls (activityLog.add, addMany, clear, getEntries, filter, search) and new control API helpers (setActivityLogVisible, toggleActivityLog, getActivityLogVisible)
+- Updated Appbar examples to include activity log toggle properties (.showActivityLogToggle, .activityLogCount, .activityLogActive) and @activity-toggle event
+- Added interface docs (IViewDefinition, IActivityEntry) and updated menu/secondary menu type references
+- Changes are documentation-focused (README/element readmes); no source code logic changes shown in this diff
+
+## 2026-01-03 - 3.28.1 - fix(appui)
+adjust layout and spacing in app UI components: fix activity log overflow, contain main content overscroll, and refine secondary menu padding/transition
+
+- ts_web/elements/00group-appui/dees-appui-activitylog: removed host max-width, added overflow:hidden and set .maincontainer width to 280px to prevent horizontal overflow
+- ts_web/elements/00group-appui/dees-appui-maincontent: added overscroll-behavior: contain to .content-area to prevent scroll chaining/overscroll
+- ts_web/elements/00group-appui/dees-appui-secondarymenu: updated .groupHeader padding and hover border behavior, increased group icon size from 14px to 16px, and added margin + transition tweaks to .groupItems for smoother collapse/expand
+
+## 2026-01-02 - 3.28.0 - feat(dees-appui)
+Rename DeesAppuiBase to DeesAppui and migrate related API, exports, demos and docs
+
+- Renamed public component/tag and TypeScript types: DeesAppuiBase -> DeesAppui and TDeesAppuiBase -> TDeesAppui; updated IViewActivationContext.appui type accordingly
+- Moved/rewired view registry implementation from dees-appui-base to dees-appui and updated module exports
+- Updated README and demo files to reference DeesAppui and new readme paths (removed dees-appui-base docs/demo)
+- Replaced dependency/imports of '@webcontainer/api' with '@tempfix/webcontainer__api' (package.json and source imports)
+- Changed tsconfig.json: skipLibCheck set from true to false
+
+## 2026-01-01 - 3.27.1 - fix(dees-actionbar)
+always render actionbar wrapper and delay adding visible class to ensure grid/opacity animations run reliably
+
+- Always render the actionbar wrapper (.actionbar-item and .actionbar-content) instead of returning early so grid-template-rows and opacity transitions can animate.
+- Use optional chaining for current bar access (bar?.type, bar?.timeout) to avoid runtime errors when no bar is present.
+- Adjust styles and structure: set :host display:block; move background/border to .actionbar-item; add .actionbar-content with min-height/opacity and transitions.
+- Make processQueue asynchronous and await updateComplete, then add the 'visible' class inside requestAnimationFrame so the CSS transition is triggered after render.
+
+## 2026-01-01 - 3.27.0 - feat(services)
+introduce DeesServiceLibLoader to lazy-load heavy client libraries from CDN and update components to use it
+
+- Add DeesServiceLibLoader singleton (ts_web/services/DeesServiceLibLoader.ts) to lazily load and cache libraries via jsDelivr ESM: xterm, xterm-addon-fit, highlight.js, ApexCharts, and Tiptap.
+- Inject xterm CSS dynamically to avoid shipping xterm styles in the initial bundle.
+- Expose helper methods preloadAll() and isLoaded(), and typed bundle interfaces (IXtermBundle, IXtermFitAddonBundle, ITiptapBundle).
+- Update components to use runtime-loaded modules: dees-chart-area, dees-dataview-codebox, dees-input-richtext, wysiwyg code block, dees-workspace-terminal, terminal-tab-manager, dees-workspace-terminal-preview.
+- TerminalTabManager now requires setXtermModules(...) before creating tabs and will throw if not initialized; workspace terminal now initializes and passes the loaded modules.
+- Replace direct runtime imports of heavy libs with typed imports and runtime-loaded bundles to reduce initial bundle size and improve load performance.
+
+## 2026-01-01 - 3.26.1 - fix(dees-actionbar)
+animate actionbar hide using grid-template-rows and wait for animation before clearing state
+
+- Switch host layout from block/max-height to grid using grid-template-rows for open/close transitions
+- Add min-height: 0 to .actionbar-item to prevent flex children overflow and collapsing
+- Introduce async hideCurrentBar() that removes 'visible', sets isVisible=false, waits 220ms then clears currentBar and currentResolve
+- processQueue() now calls hideCurrentBar() asynchronously instead of clearing state immediately
+
+## 2026-01-01 - 3.26.0 - feat(workspace)
+add external file change detection, conflict resolution UI, and diff editor
+
+- Watch open files for external changes with debounced file watchers (startWatchingFile/stopWatchingFile/stopAllFileWatchers).
+- Prompt the user when disk changes conflict with unsaved local edits via dees-actionbar (actions: Load from Disk, Save Local, Compare).
+- Introduce dees-workspace-diff-editor component and export it; support comparing and resolving diffs (diff-resolved / diff-closed events).
+- Add setContentExternal in dees-workspace-monaco to update editor content from external sources while optionally preserving cursor, selections and scroll position.
+- Start/stop file watchers when files are opened/closed and integrate diff view and actionbar into the workspace UI for seamless conflict handling.
+
+## 2026-01-01 - 3.25.0 - feat(dees-actionbar)
+add action bar component and improve workspace package update handling
+
+- Introduce dees-actionbar component (dees-actionbar.ts) with interfaces, queueing, timed auto-trigger and demo usage
+- Add actionbar.interfaces.ts and index export; export dees-actionbar from elements index
+- Enhance workspace bottombar: add pendingPackageUpdate flag, process-complete handler, and connected/disconnected listeners to auto-refresh package status after updates
+- Make pnpm outdated checking robust by streaming output via a reader and adding a 10s timeout to avoid hanging; handle timeout and stream cancellation
+- Update package update commands to include '--latest' for updatePackage and updateAllPackages, and show 'Checking...' label during checks
+- Add '@types/node' (^22.0.0) to devDependencies in the workspace package config
+
+## 2026-01-01 - 3.24.0 - feat(workspace)
+add workspace bottom bar, terminal tab manager, and run-process integration
+
+- Add dees-workspace-bottombar component and export; bottom bar emits run-process events to launch processes.
+- Introduce terminal interfaces (IRunProcessEventDetail, ITerminalTab, ICreateTerminalTabOptions, etc.) and a TerminalTabManager to manage multiple terminal tabs and lifecycle.
+- Integrate bottombar into dees-workspace: layout refactor (workspace-outer), move/adjust resize handles and panels, and handle @run-process to create terminal tabs and focus terminal panel.
+- Enhance dees-workspace-terminal: tabbed terminal UI, new public APIs (createProcessTab, writeToTab, sendInputToTab), theme updates, and improved disposal/cleanup behavior.
+- Update module exports to include bottombar and additional terminal sub-exports (interfaces, terminal-tab-manager).
+
+## 2025-12-31 - 3.23.0 - feat(workspace)
+add resizable file tree and terminal panes with draggable handles and public layout APIs
+
+- Introduce reactive state for currentFileTreeWidth, currentTerminalHeight, isDraggingFileTree and isDraggingTerminal
+- Add mouse event handlers (mousedown/move/up) to drag-resize the file tree and terminal with min/max clamping
+- Dispatch window resize event after resizing to notify Monaco/editor of layout changes
+- Clean up resize event listeners in disconnectedCallback
+- Initialize current sizes from component properties in firstUpdated
+- Expose public layout methods: setFileTreeWidth, setTerminalHeight, resetLayout
+
+## 2025-12-31 - 3.22.0 - feat(workspace)
+add resizable markdown editor/preview split with draggable handle and markdown outlet styling/demo
+
+- Introduce a flexible split layout for the workspace markdown editor with a draggable resize handle (splitRatio, minPanelSize, dragging state, mouse handlers and cleanup).
+- Enhance dees-workspace-markdown: switch from grid to flex, add resize handle UI, prevent pointer selection while dragging, notify Monaco on resize.
+- Add comprehensive styling and demo content for dees-workspace-markdownoutlet (dark/light themed markdown styles, syntax highlighting classes, and demo scenarios).
+- Fix typescript-intellisense monaco model update: only set model value when content actually changed to avoid cursor resets.
+- Add markdown outlet demo helper and numerous screenshot/image assets (.playwright-mcp) for demos/documentation.
+
+## 2025-12-31 - 3.21.0 - feat(terminal)
+add dynamic bright/dark theming for terminal components and terminal preview
+
+- Add bright/dark theme PNG assets under .playwright-mcp for previews.
+- Replace hardcoded terminal background/colors with cssManager.bdTheme in workspace terminal and preview styles.
+- Introduce getTerminalTheme helper to compute xterm theme for bright/dark modes.
+- Subscribe to themeManager.themeObservable and apply updates to xterm (terminal.options.theme) so terminals update live on theme change.
+- Remove hardcoded background property/CSS var and unused background accessor from workspace terminal.
+- Ensure proper cleanup: unsubscribe theme subscriptions and dispose terminals in disconnectedCallback.
+
+## 2025-12-31 - 3.20.1 - fix(dees-workspace)
+fix demo wrapper and workspace layout; always render terminal preview
+
+- Import @design.estate/dees-wcctools/demotools and wrap demo content in <dees-demowrapper>
+- Create an absolute-positioned container so the dees-workspace fills 100% height/width
+- Always render dees-workspace-terminal-preview (use empty command when none) to avoid conditional rendering issues
+- Set a fixed height (200px) for the terminal preview in the initializing state
+- Add Playwright demo asset .playwright-mcp/dees-workspace-demo-4k.png
+
 ## 2025-12-31 - 3.20.0 - feat(workspace)
 rename editor components to workspace group and move terminal & TypeScript intellisense into workspace
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@design.estate/dees-catalog",
-  "version": "3.20.0",
+  "version": "3.29.1",
   "private": false,
   "description": "A comprehensive library that provides dynamic web components for building sophisticated and modern web applications using JavaScript and TypeScript.",
   "main": "dist_ts_web/index.js",
@@ -32,7 +32,7 @@
     "@tiptap/extension-underline": "^2.23.0",
     "@tiptap/starter-kit": "^2.23.0",
     "@tsclass/tsclass": "^9.3.0",
-    "@webcontainer/api": "1.6.1",
+    "@tempfix/webcontainer__api": "1.6.1",
     "apexcharts": "^5.3.6",
     "highlight.js": "11.11.1",
     "ibantools": "^4.5.1",

pnpm-lock.yaml

@@ -35,6 +35,9 @@ importers:
       '@push.rocks/smartstring':
         specifier: ^4.1.0
         version: 4.1.0
+      '@tempfix/webcontainer__api':
+        specifier: 1.6.1
+        version: 1.6.1
       '@tiptap/core':
         specifier: ^2.23.0
         version: 2.27.1(@tiptap/pm@2.27.1)
@@ -56,9 +59,6 @@ importers:
       '@tsclass/tsclass':
         specifier: ^9.3.0
         version: 9.3.0
-      '@webcontainer/api':
-        specifier: 1.6.1
-        version: 1.6.1
       apexcharts:
         specifier: ^5.3.6
         version: 5.3.6
@@ -1450,6 +1450,9 @@ packages:
   '@tempfix/idb@8.0.3':
     resolution: {integrity: sha512-hPJQKO7+oAIY+pDNImrZ9QAINbz9KmwT+yO4iRVwdPanok2YKpaUxdJzIvCUwY0YgAawlvYdffbLvRLV5hbs2g==}
 
+  '@tempfix/webcontainer__api@1.6.1':
+    resolution: {integrity: sha512-Hgn3cwy0vPzjrVBqeVnY0jNZLaOCW7d+dxBe7Jv9YGHAjJ8udUMS+KbTywSv5paAfld3A/RN/iolmMzOwZxLTA==}
+
   '@tiptap/core@2.27.1':
     resolution: {integrity: sha512-nkerkl8syHj44ZzAB7oA2GPmmZINKBKCa79FuNvmGJrJ4qyZwlkDzszud23YteFZEytbc87kVd/fP76ROS6sLg==}
     peerDependencies:
@@ -1760,9 +1763,6 @@ packages:
   '@webcontainer/api@1.2.0':
     resolution: {integrity: sha512-tzoKBd4lLdhHy5GHFpUkl+ndoSba8JqmB7x0ZQFnWfjbcbQOvKQfxA8MEMUYhgqjWHnbrWdAfnBEHz5f5lYG5A==}
 
-  '@webcontainer/api@1.6.1':
-    resolution: {integrity: sha512-2RS2KiIw32BY1Icf6M1DvqSmcon9XICZCDgS29QJb2NmF12ZY2V5Ia+949hMKB3Wno+P/Y8W+sPP59PZeXSELg==}
-
   '@yr/monotone-cubic-spline@1.0.3':
     resolution: {integrity: sha512-FQXkOta0XBSUPHndIKON2Y9JeQz5ZeMqLYZVVK93FliNBFm7LNMIZmY6FrMEB9XPcDbE2bekMbZD6kzDkxwYjA==}
 
@@ -6466,6 +6466,8 @@ snapshots:
 
   '@tempfix/idb@8.0.3': {}
 
+  '@tempfix/webcontainer__api@1.6.1': {}
+
   '@tiptap/core@2.27.1(@tiptap/pm@2.27.1)':
     dependencies:
       '@tiptap/pm': 2.27.1
@@ -6814,8 +6816,6 @@ snapshots:
 
   '@webcontainer/api@1.2.0': {}
 
-  '@webcontainer/api@1.6.1': {}
-
   '@yr/monotone-cubic-spline@1.0.3': {}
 
   accepts@1.3.8:

readme.hints.md

@@ -684,7 +684,7 @@ According to Lit's documentation (https://lit.dev/docs/components/decorators/#de
 
 ## Enhanced AppUI API (2025-12-08)
 
-The `dees-appui-base` component has been enhanced with a unified configuration API for building real-world applications.
+The `dees-appui` component has been enhanced with a unified configuration API for building real-world applications.
 
 ### New Modules:
 
@@ -734,7 +734,7 @@ interface IRoutingConfig {
 }
 ```
 
-### New Public Methods on DeesAppuiBase:
+### New Public Methods on DeesAppui:
 
 ```typescript
 // Configure with unified config
@@ -774,7 +774,7 @@ const config: IAppConfig = {
   statePersistence: { enabled: true, storage: 'localStorage' },
 };
 
-html`<dees-appui-base .config=${config}></dees-appui-base>`;
+html`<dees-appui .config=${config}></dees-appui>`;
 ```
 
 ### Backward Compatibility:
@@ -783,13 +783,13 @@ The existing property-based API still works:
 
 ```typescript
 html`
-  <dees-appui-base
+  <dees-appui
     .mainmenuGroups=${groups}
     .secondarymenuGroups=${secondaryGroups}
     @mainmenu-tab-select=${handler}
   >
     <div slot="maincontent">...</div>
-  </dees-appui-base>
+  </dees-appui>
 `;
 ```
 

readme.md

@@ -1,6 +1,6 @@
 # @design.estate/dees-catalog
 
-A comprehensive web components library built with TypeScript and LitElement, providing **75+ UI components** for building modern web applications with consistent design and behavior. 🚀
+A comprehensive web components library built with TypeScript and LitElement, providing **80+ production-ready UI components** for building modern web applications with consistent design and behavior. 🚀
 
 [![TypeScript](https://img.shields.io/badge/TypeScript-5.0+-blue.svg)](https://www.typescriptlang.org/)
 [![LitElement](https://img.shields.io/badge/LitElement-4.0+-orange.svg)](https://lit.dev/)
@@ -53,13 +53,14 @@ For developers working on this library, please refer to the [UI Components Playb
 | Category | Components |
 |----------|------------|
 | **Core UI** | [`DeesButton`](#deesbutton), [`DeesButtonExit`](#deesbuttonexit), [`DeesButtonGroup`](#deesbuttongroup), [`DeesBadge`](#deesbadge), [`DeesChips`](#deeschips), [`DeesHeading`](#deesheading), [`DeesHint`](#deeshint), [`DeesIcon`](#deesicon), [`DeesLabel`](#deeslabel), [`DeesPanel`](#deespanel), [`DeesSearchbar`](#deessearchbar), [`DeesSpinner`](#deesspinner), [`DeesToast`](#deestoast), [`DeesWindowcontrols`](#deeswindowcontrols) |
-| **Forms** | [`DeesForm`](#deesform), [`DeesInputText`](#deesinputtext), [`DeesInputCheckbox`](#deesinputcheckbox), [`DeesInputDropdown`](#deesinputdropdown), [`DeesInputRadiogroup`](#deesinputradiogroup), [`DeesInputFileupload`](#deesinputfileupload), [`DeesInputIban`](#deesinputiban), [`DeesInputPhone`](#deesinputphone), [`DeesInputQuantitySelector`](#deesinputquantityselector), [`DeesInputMultitoggle`](#deesinputmultitoggle), [`DeesInputTags`](#deesinputtags), [`DeesInputTypelist`](#deesinputtypelist), [`DeesInputRichtext`](#deesinputrichtext), [`DeesInputWysiwyg`](#deesinputwysiwyg), [`DeesInputDatepicker`](#deesinputdatepicker), [`DeesInputSearchselect`](#deesinputsearchselect), [`DeesFormSubmit`](#deesformsubmit) |
-| **Layout** | [`DeesAppuiBase`](#deesappuibase), [`DeesAppuiMainmenu`](#deesappuimainmenu), [`DeesAppuiSecondarymenu`](#deesappuisecondarymenu), [`DeesAppuiMaincontent`](#deesappuimaincontent), [`DeesAppuiAppbar`](#deesappuiappbar), [`DeesAppuiActivitylog`](#deesappuiactivitylog), [`DeesAppuiProfiledropdown`](#deesappuiprofiledropdown), [`DeesAppuiTabs`](#deesappuitabs), [`DeesMobileNavigation`](#deesmobilenavigation), [`DeesDashboardGrid`](#deesdashboardgrid) |
+| **Forms** | [`DeesForm`](#deesform), [`DeesInputText`](#deesinputtext), [`DeesInputCheckbox`](#deesinputcheckbox), [`DeesInputDropdown`](#deesinputdropdown), [`DeesInputRadiogroup`](#deesinputradiogroup), [`DeesInputFileupload`](#deesinputfileupload), [`DeesInputIban`](#deesinputiban), [`DeesInputPhone`](#deesinputphone), [`DeesInputQuantitySelector`](#deesinputquantityselector), [`DeesInputMultitoggle`](#deesinputmultitoggle), [`DeesInputTags`](#deesinputtags), [`DeesInputTypelist`](#deesinputtypelist), [`DeesInputList`](#deesinputlist), [`DeesInputProfilepicture`](#deesinputprofilepicture), [`DeesInputRichtext`](#deesinputrichtext), [`DeesInputWysiwyg`](#deesinputwysiwyg), [`DeesInputDatepicker`](#deesinputdatepicker), [`DeesInputSearchselect`](#deesinputsearchselect), [`DeesFormSubmit`](#deesformsubmit) |
+| **Layout** | [`DeesAppui`](#deesappui), [`DeesAppuiMainmenu`](#deesappuimainmenu), [`DeesAppuiSecondarymenu`](#deesappuisecondarymenu), [`DeesAppuiMaincontent`](#deesappuimaincontent), [`DeesAppuiAppbar`](#deesappuiappbar), [`DeesAppuiActivitylog`](#deesappuiactivitylog), [`DeesAppuiProfiledropdown`](#deesappuiprofiledropdown), [`DeesAppuiTabs`](#deesappuitabs), [`DeesMobileNavigation`](#deesmobilenavigation), [`DeesDashboardGrid`](#deesdashboardgrid) |
 | **Data Display** | [`DeesTable`](#deestable), [`DeesDataviewCodebox`](#deesdataviewcodebox), [`DeesDataviewStatusobject`](#deesdataviewstatusobject), [`DeesPdf`](#deespdf), [`DeesStatsGrid`](#deesstatsgrid), [`DeesPagination`](#deespagination) |
 | **Visualization** | [`DeesChartArea`](#deeschartarea), [`DeesChartLog`](#deeschartlog) |
 | **Dialogs & Overlays** | [`DeesModal`](#deesmodal), [`DeesContextmenu`](#deescontextmenu), [`DeesSpeechbubble`](#deesspeechbubble), [`DeesWindowlayer`](#deeswindowlayer) |
 | **Navigation** | [`DeesStepper`](#deesstepper), [`DeesProgressbar`](#deesprogressbar) |
 | **Development** | [`DeesEditor`](#deeseditor), [`DeesEditorMarkdown`](#deeseditormarkdown), [`DeesEditorMarkdownoutlet`](#deeseditormarkdownoutlet), [`DeesTerminal`](#deesterminal), [`DeesUpdater`](#deesupdater) |
+| **Theming** | [`DeesTheme`](#deestheme) |
 | **Auth & Utilities** | [`DeesSimpleAppdash`](#deessimpleappdash), [`DeesSimpleLogin`](#deessimplelogin) |
 | **Shopping** | [`DeesShoppingProductcard`](#deesshoppingproductcard) |
 
@@ -482,6 +483,62 @@ Dynamic list input for managing arrays of typed values.
 ></dees-input-typelist>
 ```
 
+#### `DeesInputList`
+Advanced list input with drag-and-drop reordering, inline editing, and validation.
+
+```typescript
+<dees-input-list
+  key="items"
+  label="List Items"
+  placeholder="Add new item..."
+  .value=${['Item 1', 'Item 2', 'Item 3']}
+  maxItems={10}            // Optional: maximum items
+  minItems={1}             // Optional: minimum items
+  allowDuplicates={false}  // Optional: allow duplicate values
+  sortable={true}          // Optional: enable drag-and-drop reordering
+  confirmDelete={true}     // Optional: confirm before deletion
+  @change=${handleListChange}
+></dees-input-list>
+```
+
+**Key Features:**
+- Add, edit, and remove items inline
+- Drag-and-drop reordering with visual feedback
+- Optional duplicate prevention
+- Min/max item constraints
+- Delete confirmation dialog
+- Full keyboard support
+- Form validation integration
+
+#### `DeesInputProfilepicture`
+Profile picture input with cropping, zoom, and image processing.
+
+```typescript
+<dees-input-profilepicture
+  key="avatar"
+  label="Profile Picture"
+  shape="round"           // Options: round, square
+  size={120}              // Display size in pixels
+  .value=${imageBase64}   // Base64 encoded image or URL
+  allowUpload={true}      // Enable upload button
+  allowDelete={true}      // Enable delete button
+  maxFileSize={5242880}   // Max file size in bytes (5MB)
+  .acceptedFormats=${['image/jpeg', 'image/png', 'image/webp']}
+  outputSize={800}        // Output resolution in pixels
+  outputQuality={0.95}    // JPEG quality (0-1)
+  @change=${handleAvatarChange}
+></dees-input-profilepicture>
+```
+
+**Key Features:**
+- Interactive cropping modal with zoom and pan
+- Drag-and-drop file upload
+- Round or square output shapes
+- Configurable output size and quality
+- File size and format validation
+- Delete functionality
+- Preview on hover
+
 #### `DeesInputDatepicker`
 Date and time picker component with calendar interface and manual typing support.
 
@@ -615,23 +672,23 @@ Submit button component specifically designed for `DeesForm`.
 
 ### Layout Components
 
-#### `DeesAppuiBase`
+#### `DeesAppui`
 A comprehensive application shell component providing a complete UI framework with navigation, menus, activity logging, and view management.
 
-> **Full API Documentation**: See [ts_web/elements/00group-appui/dees-appui-base/readme.md](./ts_web/elements/00group-appui/dees-appui-base/readme.md) for complete documentation including all programmatic APIs, view lifecycle hooks, and TypeScript interfaces.
+> **Full API Documentation**: See [ts_web/elements/00group-appui/dees-appui/readme.md](./ts_web/elements/00group-appui/dees-appui/readme.md) for complete documentation including all programmatic APIs, view lifecycle hooks, and TypeScript interfaces.
 
 **Quick Start:**
 
 ```typescript
 import { html, DeesElement, customElement } from '@design.estate/dees-element';
-import { DeesAppuiBase } from '@design.estate/dees-catalog';
+import { DeesAppui } from '@design.estate/dees-catalog';
 
 @customElement('my-app')
 class MyApp extends DeesElement {
-  private appui: DeesAppuiBase;
+  private appui: DeesAppui;
 
   async firstUpdated() {
-    this.appui = this.shadowRoot.querySelector('dees-appui-base');
+    this.appui = this.shadowRoot.querySelector('dees-appui');
 
     // Configure with views and menu
     this.appui.configure({
@@ -648,7 +705,7 @@ class MyApp extends DeesElement {
   }
 
   render() {
-    return html`<dees-appui-base></dees-appui-base>`;
+    return html`<dees-appui></dees-appui>`;
   }
 }
 ```
@@ -661,6 +718,7 @@ class MyApp extends DeesElement {
 - **Hash-based Routing**: Automatic URL synchronization with view navigation
 - **RxJS Observables**: `viewChanged$` and `viewLifecycle$` for reactive programming
 - **TypeScript-first**: Typed `IViewActivationContext` passed to views on activation
+- **Activity Log Toggle**: Built-in appbar button to show/hide activity panel with entry count badge
 
 **Programmatic APIs include:**
 - `navigateToView(viewId, params?)` - Navigate between views
@@ -670,6 +728,7 @@ class MyApp extends DeesElement {
 - `setSecondaryMenu()`, `setSecondaryMenuCollapsed()`, `setSecondaryMenuVisible()` - Control secondary menu
 - `setContentTabs()`, `setContentTabsVisible()` - Control view-specific UI
 - `activityLog.add()`, `activityLog.addMany()`, `activityLog.clear()` - Manage activity entries
+- `setActivityLogVisible()`, `toggleActivityLog()`, `getActivityLogVisible()` - Control activity panel
 
 **View Visibility Control:**
 ```typescript
@@ -740,7 +799,7 @@ Main content area with tab management support.
 ```
 
 #### `DeesAppuiAppbar`
-Professional application bar component with hierarchical menus, breadcrumb navigation, and user account management.
+Professional application bar component with hierarchical menus, breadcrumb navigation, user account management, and activity log toggle.
 
 ```typescript
 <dees-appui-appbar
@@ -775,6 +834,9 @@ Professional application bar component with hierarchical menus, breadcrumb navig
   .breadcrumbs=${'Project > src > components'}
   .showWindowControls=${true}
   .showSearch=${true}
+  .showActivityLogToggle=${true}
+  .activityLogCount=${5}
+  .activityLogActive=${false}
   .user=${{
     name: 'John Doe',
     avatar: '/path/to/avatar.jpg',
@@ -782,6 +844,7 @@ Professional application bar component with hierarchical menus, breadcrumb navig
   }}
   @menu-select=${(e) => handleMenuSelect(e.detail.item)}
   @breadcrumb-navigate=${(e) => handleBreadcrumbClick(e.detail)}
+  @activity-toggle=${() => handleActivityToggle()}
 ></dees-appui-appbar>
 ```
 
@@ -789,9 +852,40 @@ Professional application bar component with hierarchical menus, breadcrumb navig
 - **Hierarchical Menu System** - Top-level menus with dropdown submenus, icons, and keyboard shortcuts
 - **Keyboard Navigation** - Full keyboard support (Tab, Arrow keys, Enter, Escape)
 - **Breadcrumb Navigation** - Customizable breadcrumb trail with click events
-- **User Account Section** - Avatar with status indicator
+- **User Account Section** - Avatar with status indicator and profile dropdown
+- **Activity Log Toggle** - Button with badge count to show/hide activity panel
 - **Accessibility** - Full ARIA support with menubar roles
 
+#### `DeesAppuiActivitylog`
+Real-time activity log panel for displaying user actions and system events.
+
+```typescript
+<dees-appui-activitylog></dees-appui-activitylog>
+
+// Programmatic API
+activityLog.add({
+  type: 'update',        // Options: login, logout, view, create, update, delete, custom
+  user: 'John Doe',
+  message: 'Updated project settings',
+  iconName: 'lucide:settings'  // Optional: custom icon
+});
+
+activityLog.addMany(entries);  // Add multiple entries
+activityLog.clear();           // Clear all entries
+activityLog.getEntries();      // Get all entries
+activityLog.filter({ user: 'John' });  // Filter by user/type
+activityLog.search('settings');        // Search by message
+```
+
+**Key Features:**
+- Stacked entry layout with icon, user, timestamp, and message
+- Date grouping (Today, Yesterday, etc.)
+- Search and filter functionality
+- Context menu for entry actions
+- Live streaming indicator
+- Animated slide-in/out panel
+- Theme-aware styling
+
 #### `DeesAppuiTabs`
 Reusable tab component with horizontal/vertical layout support.
 
@@ -1089,6 +1183,40 @@ Progress indicator component for tracking completion status.
 
 ---
 
+### Theming Components
+
+#### `DeesTheme`
+Theme provider component that wraps children and provides CSS custom properties for consistent theming.
+
+```typescript
+// Basic usage - wrap your app
+<dees-theme>
+  <my-app></my-app>
+</dees-theme>
+
+// With custom overrides
+<dees-theme
+  .customColors=${{
+    primary: '#007bff',
+    success: '#28a745'
+  }}
+  .customSpacing=${{
+    lg: '24px',
+    xl: '32px'
+  }}
+>
+  <my-section></my-section>
+</dees-theme>
+```
+
+**Key Features:**
+- Provides CSS custom properties for colors, spacing, radius, shadows, and transitions
+- Can be nested for section-specific theming
+- Works with dark/light mode
+- Overrides cascade to all child components
+
+---
+
 ### Development Components
 
 #### `DeesEditor`
@@ -1241,6 +1369,29 @@ interface IMenuGroup {
   collapsed?: boolean;
   iconName?: string;
 }
+
+// View definition for app navigation
+interface IViewDefinition {
+  id: string;
+  name: string;
+  iconName?: string;
+  content: string | HTMLElement | (() => TemplateResult);
+  secondaryMenu?: ISecondaryMenuGroup[];
+  contentTabs?: IMenuItem[];
+  route?: string;
+  badge?: string | number;
+}
+
+// Activity log entry
+interface IActivityEntry {
+  id?: string;
+  timestamp?: Date;
+  type: 'login' | 'logout' | 'view' | 'create' | 'update' | 'delete' | 'custom';
+  user: string;
+  message: string;
+  iconName?: string;
+  data?: Record<string, unknown>;
+}
 ```
 
 ---

ts_web/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@design.estate/dees-catalog',
-  version: '3.20.0',
+  version: '3.29.1',
   description: 'A comprehensive library that provides dynamic web components for building sophisticated and modern web applications using JavaScript and TypeScript.'
 }

ts_web/elements/00group-appui/dees-appui-activitylog/dees-appui-activitylog.ts

@@ -39,60 +39,91 @@ export class DeesAppuiActivitylog extends DeesElement implements IActivityLogAPI
     themeDefaultStyles,
     cssManager.defaultStyles,
     css`
-      /* TODO: Migrate hardcoded values to --dees-* CSS variables */
       :host {
-        color: ${cssManager.bdTheme('#09090b', '#fafafa')};
+        /* CSS Variables aligned with secondary menu */
+        --activitylog-bg: ${cssManager.bdTheme('#fafafa', '#0a0a0a')};
+        --activitylog-fg: ${cssManager.bdTheme('#525252', '#a3a3a3')};
+        --activitylog-fg-muted: ${cssManager.bdTheme('#737373', '#737373')};
+        --activitylog-fg-active: ${cssManager.bdTheme('#0a0a0a', '#fafafa')};
+        --activitylog-border: ${cssManager.bdTheme('#e5e5e5', '#1a1a1a')};
+        --activitylog-hover: ${cssManager.bdTheme('rgba(0, 0, 0, 0.04)', 'rgba(255, 255, 255, 0.06)')};
+        --activitylog-accent: ${cssManager.bdTheme('#78716c', '#b5a99a')};
+
+        color: var(--activitylog-fg);
         position: relative;
         display: block;
         width: 100%;
-        max-width: 320px;
         height: 100%;
-        background: ${cssManager.bdTheme('#fafafa', '#0a0a0a')};
-        font-family: 'Geist Mono', monospace;
-        border-left: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
+        background: var(--activitylog-bg);
+        font-family: 'Geist Sans', -apple-system, BlinkMacSystemFont, sans-serif;
+        border-left: 1px solid var(--activitylog-border);
         cursor: default;
-        box-shadow: ${cssManager.bdTheme(
-          '-4px 0 12px rgba(0, 0, 0, 0.02)',
-          '-4px 0 12px rgba(0, 0, 0, 0.2)'
-        )};
+        overflow: hidden;
       }
+
       .maincontainer {
         position: absolute;
         top: 0px;
         left: 0px;
         height: 100%;
-        width: 100%;
+        width: 280px;
       }
 
+      /* Header with streaming indicator */
       .topbar {
         position: absolute;
         top: 0px;
         height: 48px;
         width: 100%;
-        padding: 0px 16px;
-        background: ${cssManager.bdTheme('#ffffff', '#09090b')};
-        border-bottom: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
+        padding: 0px 12px;
+        background: var(--activitylog-bg);
+        border-bottom: 1px solid var(--activitylog-border);
         display: flex;
         align-items: center;
+        justify-content: space-between;
         box-sizing: border-box;
       }
 
       .topbar .heading {
         font-weight: 600;
         font-size: 14px;
-        font-family: 'Geist Sans', sans-serif;
-        color: ${cssManager.bdTheme('#09090b', '#fafafa')};
+        color: var(--activitylog-fg-active);
       }
 
+      .live-indicator {
+        display: flex;
+        align-items: center;
+        gap: 6px;
+        font-size: 10px;
+        font-weight: 500;
+        text-transform: uppercase;
+        letter-spacing: 0.05em;
+        color: var(--activitylog-fg-muted);
+      }
+
+      .live-indicator .dot {
+        width: 6px;
+        height: 6px;
+        background: ${cssManager.bdTheme('#22c55e', '#22c55e')};
+        border-radius: 50%;
+        animation: pulse 2s ease-in-out infinite;
+      }
+
+      @keyframes pulse {
+        0%, 100% { opacity: 0.5; transform: scale(0.9); }
+        50% { opacity: 1; transform: scale(1.1); }
+      }
+
+      /* Activity container */
       .activityContainer {
         position: absolute;
         top: 48px;
         bottom: 48px;
         width: 100%;
-        padding: 12px 0px;
+        padding: 8px 0;
         overflow-y: auto;
         scrollbar-width: thin;
-        scrollbar-color: ${cssManager.bdTheme('#e5e7eb', '#27272a')} transparent;
+        scrollbar-color: ${cssManager.bdTheme('#d4d4d4', '#333333')} transparent;
       }
 
       .activityContainer::-webkit-scrollbar {
@@ -104,82 +135,53 @@ export class DeesAppuiActivitylog extends DeesElement implements IActivityLogAPI
       }
 
       .activityContainer::-webkit-scrollbar-thumb {
-        background: ${cssManager.bdTheme('#e5e7eb', '#27272a')};
+        background: ${cssManager.bdTheme('#d4d4d4', '#333333')};
         border-radius: 3px;
       }
 
       .activityContainer::-webkit-scrollbar-thumb:hover {
-        background: ${cssManager.bdTheme('#d4d4d8', '#3f3f46')};
+        background: ${cssManager.bdTheme('#a3a3a3', '#525252')};
       }
 
       .empty-state {
         font-size: 13px;
         text-align: center;
-        padding: 32px 16px;
-        color: ${cssManager.bdTheme('#71717a', '#71717a')};
-        font-family: 'Geist Sans', sans-serif;
-      }
-
-      .streamingIndicator {
-        font-size: 11px;
-        text-align: center;
-        padding: 16px;
-        color: ${cssManager.bdTheme('#71717a', '#71717a')};
-        font-family: 'Geist Sans', sans-serif;
-        text-transform: uppercase;
-        letter-spacing: 0.05em;
-        font-weight: 500;
-        display: flex;
-        align-items: center;
-        justify-content: center;
-        gap: 8px;
-      }
-
-      .streamingIndicator::before {
-        content: '';
-        width: 6px;
-        height: 6px;
-        background: ${cssManager.bdTheme('#3b82f6', '#3b82f6')};
-        border-radius: 50%;
-        animation: pulse 2s ease-in-out infinite;
-      }
-
-      @keyframes pulse {
-        0%, 100% { opacity: 0.4; transform: scale(0.8); }
-        50% { opacity: 1; transform: scale(1.2); }
+        padding: 40px 16px;
+        color: var(--activitylog-fg-muted);
       }
 
+      /* Date separator - warm taupe styling */
       .date-separator {
-        padding: 12px 16px 8px;
-        font-size: 11px;
+        padding: 12px 12px 6px;
+        font-size: 10px;
         font-weight: 600;
         text-transform: uppercase;
-        letter-spacing: 0.05em;
-        color: ${cssManager.bdTheme('#71717a', '#71717a')};
-        background: ${cssManager.bdTheme('#f9fafb', '#09090b')};
-        border-bottom: 1px solid ${cssManager.bdTheme('#f4f4f5', '#18181b')};
+        letter-spacing: 0.5px;
+        color: var(--activitylog-accent);
         position: sticky;
         top: 0;
         z-index: 1;
+        background: var(--activitylog-bg);
       }
 
+      /* Activity entry - modern stacked layout */
       .activityentry {
-        min-height: 36px;
-        font-size: 13px;
-        padding: 10px 16px;
-        border-bottom: 1px solid ${cssManager.bdTheme('#f4f4f5', '#18181b')};
-        transition: all 0.15s ease;
+        font-size: 12px;
+        padding: 8px 12px;
+        margin: 2px 4px;
+        border-radius: 6px;
+        transition: background 0.15s ease;
         display: flex;
-        align-items: center;
-        gap: 8px;
+        align-items: flex-start;
+        gap: 10px;
         line-height: 1.4;
-        animation: fadeIn 0.3s ease-out;
+        animation: fadeIn 0.2s ease-out;
       }
 
       @keyframes fadeIn {
         from {
           opacity: 0;
-          transform: translateY(-4px);
+          transform: translateY(-2px);
         }
         to {
           opacity: 1;
@@ -187,88 +189,109 @@ export class DeesAppuiActivitylog extends DeesElement implements IActivityLogAPI
         }
       }
 
-      .activityentry:last-of-type {
-        border-bottom: none;
-      }
-
       .activityentry:hover {
-        background: ${cssManager.bdTheme('#f4f4f5', '#18181b')};
-      }
-
-      .timestamp {
-        color: ${cssManager.bdTheme('#71717a', '#71717a')};
-        font-weight: 500;
-        font-size: 12px;
-        font-variant-numeric: tabular-nums;
-        flex-shrink: 0;
-        min-width: 45px;
+        background: var(--activitylog-hover);
       }
 
       .activity-icon {
         width: 28px;
         height: 28px;
         border-radius: 6px;
-        background: ${cssManager.bdTheme('#f4f4f5', '#18181b')};
+        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.04)', 'rgba(255, 255, 255, 0.06)')};
         display: flex;
         align-items: center;
         justify-content: center;
         flex-shrink: 0;
-        font-size: 14px;
+        font-size: 13px;
+        color: var(--activitylog-fg-muted);
+        margin-top: 1px;
       }
 
       .activity-icon.login {
-        background: ${cssManager.bdTheme('rgba(34, 197, 94, 0.1)', 'rgba(34, 197, 94, 0.1)')};
-        color: ${cssManager.bdTheme('#16a34a', '#22c55e')};
+        background: ${cssManager.bdTheme('rgba(34, 197, 94, 0.08)', 'rgba(34, 197, 94, 0.12)')};
+        color: ${cssManager.bdTheme('#16a34a', '#4ade80')};
       }
 
       .activity-icon.logout {
-        background: ${cssManager.bdTheme('rgba(239, 68, 68, 0.1)', 'rgba(239, 68, 68, 0.1)')};
-        color: ${cssManager.bdTheme('#dc2626', '#ef4444')};
+        background: ${cssManager.bdTheme('rgba(239, 68, 68, 0.08)', 'rgba(239, 68, 68, 0.12)')};
+        color: ${cssManager.bdTheme('#dc2626', '#f87171')};
       }
 
       .activity-icon.view {
-        background: ${cssManager.bdTheme('rgba(59, 130, 246, 0.1)', 'rgba(59, 130, 246, 0.1)')};
-        color: ${cssManager.bdTheme('#2563eb', '#3b82f6')};
+        background: ${cssManager.bdTheme('rgba(59, 130, 246, 0.08)', 'rgba(59, 130, 246, 0.12)')};
+        color: ${cssManager.bdTheme('#2563eb', '#60a5fa')};
       }
 
       .activity-icon.create {
-        background: ${cssManager.bdTheme('rgba(168, 85, 247, 0.1)', 'rgba(168, 85, 247, 0.1)')};
-        color: ${cssManager.bdTheme('#9333ea', '#a855f7')};
+        background: ${cssManager.bdTheme('rgba(168, 85, 247, 0.08)', 'rgba(168, 85, 247, 0.12)')};
+        color: ${cssManager.bdTheme('#9333ea', '#c084fc')};
       }
 
       .activity-icon.update {
-        background: ${cssManager.bdTheme('rgba(251, 146, 60, 0.1)', 'rgba(251, 146, 60, 0.1)')};
+        background: ${cssManager.bdTheme('rgba(251, 146, 60, 0.08)', 'rgba(251, 146, 60, 0.12)')};
         color: ${cssManager.bdTheme('#ea580c', '#fb923c')};
       }
 
       .activity-icon.delete {
-        background: ${cssManager.bdTheme('rgba(239, 68, 68, 0.1)', 'rgba(239, 68, 68, 0.1)')};
-        color: ${cssManager.bdTheme('#dc2626', '#ef4444')};
+        background: ${cssManager.bdTheme('rgba(239, 68, 68, 0.08)', 'rgba(239, 68, 68, 0.12)')};
+        color: ${cssManager.bdTheme('#dc2626', '#f87171')};
       }
 
       .activity-icon.custom {
-        background: ${cssManager.bdTheme('rgba(100, 116, 139, 0.1)', 'rgba(100, 116, 139, 0.1)')};
+        background: ${cssManager.bdTheme('rgba(100, 116, 139, 0.08)', 'rgba(100, 116, 139, 0.12)')};
         color: ${cssManager.bdTheme('#475569', '#94a3b8')};
       }
 
-      .activity-text {
+      .activity-content {
         flex: 1;
-        color: ${cssManager.bdTheme('#18181b', '#e4e4e7')};
+        min-width: 0;
+        display: flex;
+        flex-direction: column;
+        gap: 2px;
+      }
+
+      .activity-header {
+        display: flex;
+        align-items: center;
+        gap: 6px;
       }
 
       .activity-user {
         font-weight: 600;
-        color: ${cssManager.bdTheme('#09090b', '#fafafa')};
+        font-size: 12px;
+        color: var(--activitylog-fg-active);
       }
 
+      .activity-separator {
+        color: var(--activitylog-fg-muted);
+        font-size: 10px;
+      }
+
+      .timestamp {
+        color: var(--activitylog-fg-muted);
+        font-weight: 400;
+        font-size: 11px;
+        font-variant-numeric: tabular-nums;
+        font-family: 'Geist Mono', monospace;
+      }
+
+      .activity-message {
+        color: var(--activitylog-fg);
+        font-size: 12px;
+        line-height: 1.5;
+        word-break: break-word;
+      }
+
+      /* Search box - refined styling */
       .searchbox {
         position: absolute;
         bottom: 0px;
         width: 100%;
         height: 48px;
-        background: ${cssManager.bdTheme('#ffffff', '#09090b')};
-        border-top: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
-        padding: 8px;
+        background: var(--activitylog-bg);
+        border-top: 1px solid var(--activitylog-border);
+        padding: 8px 12px;
+        box-sizing: border-box;
       }
 
       .search-wrapper {
@@ -282,64 +305,37 @@ export class DeesAppuiActivitylog extends DeesElement implements IActivityLogAPI
         left: 10px;
         top: 50%;
         transform: translateY(-50%);
-        color: ${cssManager.bdTheme('#71717a', '#71717a')};
-        font-size: 14px;
+        color: var(--activitylog-fg-muted);
+        font-size: 13px;
         pointer-events: none;
         transition: color 0.15s ease;
       }
 
       .searchbox input {
-        color: ${cssManager.bdTheme('#09090b', '#fafafa')};
-        background: ${cssManager.bdTheme('#f4f4f5', '#18181b')};
+        color: var(--activitylog-fg-active);
+        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.03)', 'rgba(255, 255, 255, 0.04)')};
         width: 100%;
         height: 100%;
-        border: 1px solid ${cssManager.bdTheme('#e5e7eb', '#27272a')};
+        border: 1px solid ${cssManager.bdTheme('rgba(0, 0, 0, 0.08)', 'rgba(255, 255, 255, 0.08)')};
         border-radius: 6px;
-        padding: 0 12px 0 36px;
+        padding: 0 12px 0 34px;
         font-family: 'Geist Sans', sans-serif;
-        font-size: 13px;
+        font-size: 12px;
         transition: all 0.15s ease;
       }
 
       .searchbox input::placeholder {
-        color: ${cssManager.bdTheme('#71717a', '#71717a')};
+        color: var(--activitylog-fg-muted);
       }
 
       .searchbox input:focus {
         outline: none;
-        border-color: ${cssManager.bdTheme('#3b82f6', '#3b82f6')};
-        box-shadow: 0 0 0 3px ${cssManager.bdTheme('rgba(59, 130, 246, 0.1)', 'rgba(59, 130, 246, 0.1)')};
+        border-color: ${cssManager.bdTheme('rgba(0, 0, 0, 0.15)', 'rgba(255, 255, 255, 0.15)')};
+        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.02)', 'rgba(255, 255, 255, 0.06)')};
       }
 
-      .searchbox input:focus ~ .search-icon,
       .search-wrapper:has(input:focus) .search-icon {
-        color: ${cssManager.bdTheme('#3b82f6', '#3b82f6')};
-      }
-
-      .bottomShadow {
-        position: absolute;
-        width: 100%;
-        height: 24px;
-        bottom: 48px;
-        background: ${cssManager.bdTheme(
-          'linear-gradient(180deg, transparent 0%, #fafafa 100%)',
-          'linear-gradient(180deg, transparent 0%, #0a0a0a 100%)'
-        )};
-        pointer-events: none;
-        opacity: 0.8;
-      }
-
-      .topShadow {
-        position: absolute;
-        width: 100%;
-        height: 24px;
-        top: 48px;
-        background: ${cssManager.bdTheme(
-          'linear-gradient(0deg, transparent 0%, #fafafa 100%)',
-          'linear-gradient(0deg, transparent 0%, #0a0a0a 100%)'
-        )};
-        pointer-events: none;
-        opacity: 0.8;
+        color: var(--activitylog-fg);
       }
     `,
   ];
@@ -355,12 +351,11 @@ export class DeesAppuiActivitylog extends DeesElement implements IActivityLogAPI
       <div class="maincontainer">
         <div class="topbar">
           <div class="heading">Activity Log</div>
+          ${filteredEntries.length > 0
+            ? html`<div class="live-indicator"><span class="dot"></span>Live</div>`
+            : ''}
         </div>
         <div class="activityContainer">
-          ${filteredEntries.length > 0
-            ? html`<div class="streamingIndicator">Live Updates</div>`
-            : ''}
-
           ${filteredEntries.length === 0
             ? html`<div class="empty-state">No activity entries</div>`
             : groupedEntries.map(
@@ -381,8 +376,6 @@ export class DeesAppuiActivitylog extends DeesElement implements IActivityLogAPI
             />
           </div>
         </div>
-        <div class="topShadow"></div>
-        <div class="bottomShadow"></div>
       </div>
     `;
   }
@@ -397,12 +390,16 @@ export class DeesAppuiActivitylog extends DeesElement implements IActivityLogAPI
         class="activityentry"
         @contextmenu=${(e: MouseEvent) => this.handleContextMenu(e, entry)}
       >
-        <span class="timestamp">${timeStr}</span>
         <div class="activity-icon ${entry.type}">
           <dees-icon .icon=${iconName}></dees-icon>
         </div>
-        <div class="activity-text">
-          <span class="activity-user">${entry.user}</span> ${entry.message}
+        <div class="activity-content">
+          <div class="activity-header">
+            <span class="activity-user">${entry.user}</span>
+            <span class="activity-separator">·</span>
+            <span class="timestamp">${timeStr}</span>
+          </div>
+          <div class="activity-message">${entry.message}</div>
         </div>
       </div>
     `;

ts_web/elements/00group-appui/dees-appui-appbar/component.ts

@@ -57,6 +57,16 @@ export class DeesAppuiBar extends DeesElement {
   @property({ type: Boolean })
   accessor showSearch: boolean = false;
 
+  // Activity log toggle
+  @property({ type: Boolean })
+  accessor showActivityLogToggle: boolean = false;
+
+  @property({ type: Number })
+  accessor activityLogCount: number = 0;
+
+  @property({ type: Boolean })
+  accessor activityLogActive: boolean = false;
+
   // STATE
   @state()
   accessor activeMenu: string | null = null;
@@ -206,6 +216,18 @@ export class DeesAppuiBar extends DeesElement {
           ></dees-appui-profiledropdown>
         </div>
       ` : ''}
+      ${this.showActivityLogToggle ? html`
+        <div
+          class="activity-toggle ${this.activityLogActive ? 'active' : ''}"
+          @click=${this.handleActivityToggle}
+          title="Activity Log"
+        >
+          <dees-icon .icon=${'lucide:activity'}></dees-icon>
+          ${this.activityLogCount > 0 ? html`
+            <span class="activity-badge">${this.activityLogCount > 99 ? '99+' : this.activityLogCount}</span>
+          ` : ''}
+        </div>
+      ` : ''}
     `;
   }
 
@@ -310,6 +332,13 @@ export class DeesAppuiBar extends DeesElement {
     }));
   }
 
+  private handleActivityToggle() {
+    this.dispatchEvent(new CustomEvent('activity-toggle', {
+      bubbles: true,
+      composed: true
+    }));
+  }
+
   private handleUserClick() {
     this.isProfileDropdownOpen = !this.isProfileDropdownOpen;
     

ts_web/elements/00group-appui/dees-appui-appbar/styles.ts

@@ -17,7 +17,7 @@ export const appuiAppbarStyles = [
         color: ${cssManager.bdTheme('#00000080', '#ffffff80')};
         font-size: var(--appbar-font-size);
         display: grid;
-        grid-template-columns: ${cssManager.cssGridColumns(3, 20)};
+        grid-template-columns: auto 1fr auto;
         -webkit-app-region: drag;
         user-select: none;
       }
@@ -233,6 +233,54 @@ export const appuiAppbarStyles = [
       .user-status.away {
         background: #ff9800;
       }
+
+      /* Activity log toggle button */
+      .activity-toggle {
+        display: flex;
+        align-items: center;
+        gap: 2px;
+        height: 28px;
+        padding: 0 8px;
+        border-radius: 6px;
+        cursor: default;
+        -webkit-app-region: no-drag;
+        color: ${cssManager.bdTheme('#00000060', '#ffffff60')};
+        border: 1px solid ${cssManager.bdTheme('rgba(0, 0, 0, 0.1)', 'rgba(255, 255, 255, 0.1)')};
+        transition: all 0.15s ease;
+      }
+
+      .activity-toggle:hover {
+        background: ${cssManager.bdTheme('#00000010', '#ffffff15')};
+        color: ${cssManager.bdTheme('#000000', '#ffffff')};
+        border-color: transparent;
+      }
+
+      .activity-toggle.active {
+        background: ${cssManager.bdTheme('#00000015', '#ffffff20')};
+        color: ${cssManager.bdTheme('#000000', '#ffffff')};
+        border-color: transparent;
+      }
+
+      .activity-toggle dees-icon {
+        font-size: 14px;
+      }
+
+      .activity-badge {
+        position: relative;
+        margin-left: 4px;
+        min-width: 16px;
+        height: 16px;
+        padding: 0 4px;
+        background: ${cssManager.bdTheme('#525252', '#525252')};
+        color: #fafafa;
+        font-size: 10px;
+        font-weight: 600;
+        border-radius: 8px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        line-height: 1;
+      }
     `,
   ];
 

ts_web/elements/00group-appui/dees-appui-base/index.ts

@@ -1,2 +0,0 @@
-export * from './dees-appui-base.js';
-export * from './view.registry.js';

ts_web/elements/00group-appui/dees-appui-maincontent/dees-appui-maincontent.ts

@@ -85,6 +85,7 @@ export class DeesAppuiMaincontent extends DeesElement {
       .content-area {
         overflow: auto;
         min-height: 0;
+        overscroll-behavior: contain;
       }
 
       :host([notabs]) .topbar {

ts_web/elements/00group-appui/dees-appui-secondarymenu/dees-appui-secondarymenu.demo.ts

@@ -12,41 +12,102 @@ export const demoFunc = () => html`
     .demo-secondarymenu-container .spacer {
       flex: 1;
       background: #0f0f0f;
+      padding: 20px;
+      color: #a3a3a3;
+      font-family: 'Geist Sans', sans-serif;
+    }
+    .demo-secondarymenu-container .spacer h3 {
+      color: #fafafa;
+      margin-top: 0;
+    }
+    .demo-secondarymenu-container .spacer code {
+      background: #27272a;
+      padding: 2px 6px;
+      border-radius: 4px;
+      font-size: 12px;
+    }
+    .demo-secondarymenu-container .spacer ul {
+      line-height: 1.8;
     }
   </style>
   <div class="demo-secondarymenu-container">
     <dees-appui-secondarymenu
       .heading=${'Projects'}
       .groups=${[
+        // Group 1: Tab items (default behavior)
         {
-          name: 'Active',
-          iconName: 'lucide:folder',
+          name: 'Navigation',
+          iconName: 'lucide:compass',
           items: [
-            { key: 'Frontend App', iconName: 'code', action: () => console.log('Frontend'), badge: 3, badgeVariant: 'warning' },
-            { key: 'API Server', iconName: 'server', action: () => console.log('API'), badge: 'new', badgeVariant: 'success' },
-            { key: 'Database', iconName: 'database', action: () => console.log('Database') },
-          ]
+            { key: 'Dashboard', iconName: 'lucide:layoutDashboard', action: () => console.log('Dashboard clicked'), badge: 3, badgeVariant: 'warning' },
+            { key: 'Projects', iconName: 'lucide:folder', action: () => console.log('Projects clicked'), badge: 'new', badgeVariant: 'success' },
+            { key: 'Analytics', iconName: 'lucide:barChart2', action: () => console.log('Analytics clicked') },
+          ] as interfaces.ISecondaryMenuItemTab[]
         },
+        // Group 2: Actions
         {
-          name: 'Archived',
-          iconName: 'lucide:archive',
+          name: 'Actions',
+          iconName: 'lucide:zap',
+          items: [
+            { type: 'action', key: 'Create New', iconName: 'lucide:plus', action: () => alert('Create New clicked!') },
+            { type: 'action', key: 'Import Data', iconName: 'lucide:upload', action: () => alert('Import Data clicked!') },
+            { type: 'divider' },
+            { type: 'action', key: 'Delete All', iconName: 'lucide:trash2', variant: 'danger', confirmMessage: 'Are you sure you want to delete all items?', action: () => alert('Deleted!') },
+          ] as interfaces.ISecondaryMenuItem[]
+        },
+        // Group 3: Filters
+        {
+          name: 'Filters',
+          iconName: 'lucide:filter',
+          items: [
+            { type: 'header', label: 'Status' },
+            { type: 'filter', key: 'Show Active', iconName: 'lucide:checkCircle', active: true, onToggle: (active) => console.log('Show Active:', active) },
+            { type: 'filter', key: 'Show Archived', iconName: 'lucide:archive', active: false, onToggle: (active) => console.log('Show Archived:', active) },
+            { type: 'divider' },
+            { type: 'multiFilter', key: 'Categories', iconName: 'lucide:tag', collapsed: false, options: [
+              { key: 'frontend', label: 'Frontend', checked: true, iconName: 'lucide:monitor' },
+              { key: 'backend', label: 'Backend', checked: true, iconName: 'lucide:server' },
+              { key: 'devops', label: 'DevOps', checked: false, iconName: 'lucide:cloud' },
+              { key: 'design', label: 'Design', checked: false, iconName: 'lucide:palette' },
+            ], onChange: (keys) => console.log('Selected categories:', keys) },
+          ] as interfaces.ISecondaryMenuItem[]
+        },
+        // Group 4: Links and misc
+        {
+          name: 'Resources',
+          iconName: 'lucide:bookOpen',
           collapsed: true,
           items: [
-            { key: 'Legacy System', iconName: 'box', action: () => console.log('Legacy') },
-            { key: 'Old API', iconName: 'server', action: () => console.log('Old API') },
-          ]
-        },
-        {
-          name: 'Settings',
-          iconName: 'lucide:settings',
-          items: [
-            { key: 'Configuration', iconName: 'sliders', action: () => console.log('Config') },
-            { key: 'Integrations', iconName: 'plug', action: () => console.log('Integrations'), badge: 5, badgeVariant: 'error' },
-          ]
+            { type: 'header', label: 'Documentation' },
+            { type: 'link', key: 'API Reference', iconName: 'lucide:fileText', href: 'https://api.example.com/docs' },
+            { type: 'link', key: 'User Guide', iconName: 'lucide:book', href: 'https://docs.example.com/guide' },
+            { type: 'divider' },
+            { type: 'header', label: 'Support' },
+            { type: 'link', key: 'Help Center', iconName: 'lucide:helpCircle', href: '/help', external: false },
+            { type: 'link', key: 'GitHub Issues', iconName: 'lucide:github', href: 'https://github.com/example/issues' },
+          ] as interfaces.ISecondaryMenuItem[]
         }
-      ] as interfaces.IMenuGroup[]}
-      @item-select=${(e: CustomEvent) => console.log('Selected:', e.detail)}
+      ] as interfaces.ISecondaryMenuGroup[]}
+      @item-select=${(e: CustomEvent) => console.log('Tab selected:', e.detail)}
+      @action-click=${(e: CustomEvent) => console.log('Action clicked:', e.detail)}
+      @filter-toggle=${(e: CustomEvent) => console.log('Filter toggled:', e.detail)}
+      @multifilter-change=${(e: CustomEvent) => console.log('Multi-filter changed:', e.detail)}
+      @link-click=${(e: CustomEvent) => console.log('Link clicked:', e.detail)}
     ></dees-appui-secondarymenu>
-    <div class="spacer"></div>
+    <div class="spacer">
+      <h3>Secondary Menu Demo</h3>
+      <p>This demo showcases all 8 item types:</p>
+      <ul>
+        <li><code>tab</code> - Selectable items (Navigation group)</li>
+        <li><code>action</code> - Blue actions (Actions group)</li>
+        <li><code>action</code> with <code>variant: 'danger'</code> - Red danger action</li>
+        <li><code>filter</code> - Checkbox toggles (Filters group)</li>
+        <li><code>multiFilter</code> - Collapsible multi-select (Categories)</li>
+        <li><code>divider</code> - Visual separators</li>
+        <li><code>header</code> - Section labels</li>
+        <li><code>link</code> - External/internal links (Resources group)</li>
+      </ul>
+      <p>Try the collapse toggle on the left edge!</p>
+    </div>
   </div>
 `;

ts_web/elements/00group-appui/dees-appui-secondarymenu/dees-appui-secondarymenu.ts

@@ -19,7 +19,16 @@ import { themeDefaultStyles } from '../../00theme.js';
 
 /**
  * Secondary navigation menu for sub-navigation within MainMenu views
- * Supports collapsible groups, badges, and dynamic headings
+ *
+ * Supports 8 item types:
+ * 1. Tab - selectable, stays highlighted (default)
+ * 2. Action - executes without selection (blue)
+ * 3. Danger Action - red styling with optional confirmation
+ * 4. Filter - checkbox toggle
+ * 5. Multi-Filter - collapsible box with multiple checkboxes
+ * 6. Divider - visual separator
+ * 7. Header - non-interactive label
+ * 8. Link - opens URL
  */
 @customElement('dees-appui-secondarymenu')
 export class DeesAppuiSecondarymenu extends DeesElement {
@@ -31,22 +40,30 @@ export class DeesAppuiSecondarymenu extends DeesElement {
   @property({ type: String })
   accessor heading: string = 'Menu';
 
-  /** Grouped items with collapse support */
+  /** Grouped items with collapse support - supports new ISecondaryMenuGroup */
   @property({ type: Array })
-  accessor groups: interfaces.IMenuGroup[] = [];
+  accessor groups: interfaces.ISecondaryMenuGroup[] = [];
 
   /** Legacy flat list support for backward compatibility */
   @property({ type: Array })
   accessor selectionOptions: (interfaces.IMenuItem | { divider: true })[] = [];
 
-  /** Currently selected item */
+  /** Currently selected tab item */
   @property({ type: Object })
-  accessor selectedItem: interfaces.IMenuItem | null = null;
+  accessor selectedItem: interfaces.ISecondaryMenuItemTab | null = null;
 
   /** Internal state for collapsed groups */
   @state()
   accessor collapsedGroups: Set<string> = new Set();
 
+  /** Internal state for collapsed multi-filters */
+  @state()
+  accessor collapsedMultiFilters: Set<string> = new Set();
+
+  /** Render counter to force re-renders when items are mutated */
+  @state()
+  private accessor renderCounter: number = 0;
+
   /** Horizontal collapse state */
   @property({ type: Boolean, reflect: true })
   accessor collapsed: boolean = false;
@@ -80,6 +97,12 @@ export class DeesAppuiSecondarymenu extends DeesElement {
         --badge-error-bg: ${cssManager.bdTheme('#fee2e2', '#450a0a')};
         --badge-error-fg: ${cssManager.bdTheme('#991b1b', '#f87171')};
 
+        /* Action colors */
+        --action-primary: ${cssManager.bdTheme('#2563eb', '#3b82f6')};
+        --action-primary-hover: ${cssManager.bdTheme('#1d4ed8', '#60a5fa')};
+        --action-danger: ${cssManager.bdTheme('#dc2626', '#ef4444')};
+        --action-danger-hover: ${cssManager.bdTheme('#b91c1c', '#f87171')};
+
         position: relative;
         display: block;
         height: 100%;
@@ -212,7 +235,7 @@ export class DeesAppuiSecondarymenu extends DeesElement {
         display: flex;
         align-items: center;
         justify-content: space-between;
-        padding: 8px 8px;
+        padding: 8px 12px;
         cursor: pointer;
         border-radius: 6px;
         transition: background 0.15s ease, opacity 0.2s ease, max-height 0.25s ease;
@@ -220,7 +243,14 @@ export class DeesAppuiSecondarymenu extends DeesElement {
       }
 
       .groupHeader:hover {
-        background: var(--sidebar-hover);
+        border: 1px solid ${cssManager.bdTheme('rgba(140, 120, 100, 0.06)', 'rgba(180, 160, 140, 0.08)')};
+        padding: 7px 11px;
+      }
+
+      .groupHeader:not(.collapsed) {
+        background: ${cssManager.bdTheme('rgba(140, 120, 100, 0.06)', 'rgba(180, 160, 140, 0.08)')};
+        border: none;
+        padding: 8px 12px;
       }
 
       .groupHeader .groupTitle {
@@ -229,7 +259,7 @@ export class DeesAppuiSecondarymenu extends DeesElement {
         gap: 8px;
         font-size: 11px;
         font-weight: 600;
-        color: var(--sidebar-fg-muted);
+        color: ${cssManager.bdTheme('#78716c', '#b5a99a')};
         text-transform: uppercase;
         letter-spacing: 0.5px;
         white-space: nowrap;
@@ -237,14 +267,14 @@ export class DeesAppuiSecondarymenu extends DeesElement {
       }
 
       .groupHeader .groupTitle dees-icon {
-        font-size: 14px;
-        opacity: 0.7;
+        font-size: 16px;
+        color: ${cssManager.bdTheme('#78716c', '#b5a99a')};
       }
 
       .groupHeader .chevron {
         font-size: 12px;
         transition: transform 0.2s ease;
-        color: var(--sidebar-fg-muted);
+        color: ${cssManager.bdTheme('#78716c', '#b5a99a')};
       }
 
       .groupHeader.collapsed .chevron {
@@ -263,14 +293,16 @@ export class DeesAppuiSecondarymenu extends DeesElement {
       /* Group Items Container */
       .groupItems {
         overflow: hidden;
-        transition: max-height 0.25s ease, opacity 0.2s ease;
-        max-height: 500px;
+        transition: max-height 0.25s ease, opacity 0.2s ease, margin 0.25s ease;
+        max-height: 1000px;
         opacity: 1;
+        margin-bottom: 12px;
       }
 
       .groupItems.collapsed {
         max-height: 0;
         opacity: 0;
+        margin-bottom: 0;
       }
 
       /* Always show items when horizontally collapsed (regardless of group collapse state) */
@@ -279,7 +311,7 @@ export class DeesAppuiSecondarymenu extends DeesElement {
         opacity: 1;
       }
 
-      /* Menu Item */
+      /* Menu Item Base */
       .menuItem {
         position: relative;
         display: flex;
@@ -304,6 +336,12 @@ export class DeesAppuiSecondarymenu extends DeesElement {
         background: var(--sidebar-active);
       }
 
+      .menuItem.disabled {
+        opacity: 0.5;
+        cursor: not-allowed;
+        pointer-events: none;
+      }
+
       .menuItem.selected {
         background: var(--sidebar-active);
         color: var(--sidebar-fg-active);
@@ -340,6 +378,208 @@ export class DeesAppuiSecondarymenu extends DeesElement {
         transition: opacity 0.2s ease, width 0.25s ease;
       }
 
+      /* Action Item Styles */
+      .menuItem.action-primary {
+        color: var(--action-primary);
+      }
+
+      .menuItem.action-primary:hover {
+        color: var(--action-primary-hover);
+        background: ${cssManager.bdTheme('rgba(37, 99, 235, 0.08)', 'rgba(59, 130, 246, 0.12)')};
+      }
+
+      .menuItem.action-primary dees-icon {
+        opacity: 1;
+      }
+
+      .menuItem.action-danger {
+        color: var(--action-danger);
+      }
+
+      .menuItem.action-danger:hover {
+        color: var(--action-danger-hover);
+        background: ${cssManager.bdTheme('rgba(220, 38, 38, 0.08)', 'rgba(239, 68, 68, 0.12)')};
+      }
+
+      .menuItem.action-danger dees-icon {
+        opacity: 1;
+      }
+
+      /* Filter Item Styles */
+      .menuItem.filter {
+        justify-content: space-between;
+      }
+
+      .menuItem.filter .filter-checkbox {
+        width: 16px;
+        height: 16px;
+        border: 2px solid ${cssManager.bdTheme('#d4d4d4', '#525252')};
+        border-radius: 4px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        transition: all 0.15s ease;
+        flex-shrink: 0;
+      }
+
+      .menuItem.filter .filter-checkbox.checked {
+        background: var(--sidebar-accent);
+        border-color: var(--sidebar-accent);
+      }
+
+      .menuItem.filter .filter-checkbox dees-icon {
+        font-size: 12px;
+        color: ${cssManager.bdTheme('#fafafa', '#0a0a0a')};
+        opacity: 1;
+      }
+
+      .menuItem.filter.active {
+        color: var(--sidebar-fg-active);
+      }
+
+      /* Multi-Filter Container */
+      .multiFilter {
+        margin: 4px 0;
+        border: 1px solid var(--sidebar-border);
+        border-radius: 8px;
+        overflow: hidden;
+        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.02)', 'rgba(255, 255, 255, 0.02)')};
+      }
+
+      .multiFilter-header {
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+        padding: 10px 12px;
+        cursor: pointer;
+        transition: background 0.15s ease;
+      }
+
+      .multiFilter-header:hover {
+        background: var(--sidebar-hover);
+      }
+
+      .multiFilter-header .multiFilter-title {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        font-size: 13px;
+        font-weight: 500;
+        color: var(--sidebar-fg-active);
+      }
+
+      .multiFilter-header .multiFilter-title dees-icon {
+        font-size: 16px;
+        opacity: 0.7;
+      }
+
+      .multiFilter-header .multiFilter-count {
+        font-size: 11px;
+        color: var(--sidebar-fg-muted);
+        background: var(--badge-default-bg);
+        padding: 2px 6px;
+        border-radius: 4px;
+      }
+
+      .multiFilter-header .chevron {
+        font-size: 12px;
+        transition: transform 0.2s ease;
+        color: var(--sidebar-fg-muted);
+      }
+
+      .multiFilter-header.collapsed .chevron {
+        transform: rotate(-90deg);
+      }
+
+      .multiFilter-options {
+        border-top: 1px solid var(--sidebar-border);
+        overflow: hidden;
+        transition: max-height 0.25s ease, opacity 0.2s ease;
+        max-height: 500px;
+        opacity: 1;
+      }
+
+      .multiFilter-options.collapsed {
+        max-height: 0;
+        opacity: 0;
+        border-top: none;
+      }
+
+      .multiFilter-option {
+        display: flex;
+        align-items: center;
+        gap: 10px;
+        padding: 8px 12px;
+        cursor: pointer;
+        transition: background 0.15s ease;
+        font-size: 13px;
+        color: var(--sidebar-fg);
+      }
+
+      .multiFilter-option:hover {
+        background: var(--sidebar-hover);
+        color: var(--sidebar-fg-active);
+      }
+
+      .multiFilter-option .option-checkbox {
+        width: 16px;
+        height: 16px;
+        border: 2px solid ${cssManager.bdTheme('#d4d4d4', '#525252')};
+        border-radius: 4px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        transition: all 0.15s ease;
+        flex-shrink: 0;
+      }
+
+      .multiFilter-option .option-checkbox.checked {
+        background: var(--sidebar-accent);
+        border-color: var(--sidebar-accent);
+      }
+
+      .multiFilter-option .option-checkbox dees-icon {
+        font-size: 12px;
+        color: ${cssManager.bdTheme('#fafafa', '#0a0a0a')};
+      }
+
+      .multiFilter-option dees-icon.option-icon {
+        font-size: 14px;
+        opacity: 0.7;
+      }
+
+      /* Divider */
+      .menuDivider {
+        height: 1px;
+        background: var(--sidebar-border);
+        margin: 8px 12px;
+      }
+
+      :host([collapsed]) .menuDivider {
+        margin: 8px 4px;
+      }
+
+      /* Header/Label */
+      .menuHeader {
+        padding: 12px 12px 4px 12px;
+        font-size: 10px;
+        font-weight: 600;
+        color: var(--sidebar-fg-muted);
+        text-transform: uppercase;
+        letter-spacing: 0.5px;
+      }
+
+      :host([collapsed]) .menuHeader {
+        display: none;
+      }
+
+      /* Link Item */
+      .menuItem.link .external-icon {
+        font-size: 12px;
+        opacity: 0.5;
+        margin-left: auto;
+      }
+
       /* Collapsed menu item styles */
       :host([collapsed]) .menuItem {
         justify-content: center;
@@ -357,6 +597,15 @@ export class DeesAppuiSecondarymenu extends DeesElement {
         left: -4px;
       }
 
+      :host([collapsed]) .menuItem .filter-checkbox,
+      :host([collapsed]) .menuItem .external-icon {
+        display: none;
+      }
+
+      :host([collapsed]) .multiFilter {
+        display: none;
+      }
+
       /* Tooltip for collapsed state */
       .item-tooltip {
         position: absolute;
@@ -431,17 +680,17 @@ export class DeesAppuiSecondarymenu extends DeesElement {
         display: none;
       }
 
-      /* Divider */
+      /* Legacy options container */
+      .legacyOptions {
+        padding: 0 8px;
+      }
+
+      /* Divider (legacy) */
       .divider {
         height: 1px;
         background: var(--sidebar-border);
         margin: 8px 12px;
       }
-
-      /* Legacy options container */
-      .legacyOptions {
-        padding: 0 8px;
-      }
     `,
   ];
 
@@ -472,28 +721,58 @@ export class DeesAppuiSecondarymenu extends DeesElement {
             @click="${() => this.toggleGroup(group.name)}"
           >
             <span class="groupTitle">
-              ${group.iconName ? html`<dees-icon .icon="${group.iconName.startsWith('lucide:') ? group.iconName : `lucide:${group.iconName}`}"></dees-icon>` : ''}
+              ${group.iconName ? html`<dees-icon .icon="${this.normalizeIcon(group.iconName)}"></dees-icon>` : ''}
               ${group.name}
             </span>
             <dees-icon class="chevron" .icon="${'lucide:chevronDown'}"></dees-icon>
           </div>
           <div class="groupItems ${this.collapsedGroups.has(group.name) ? 'collapsed' : ''}">
-            ${group.items.map((item) => this.renderMenuItem(item, group))}
+            ${group.items.map((item) => this.renderItem(item, group))}
           </div>
         </div>
       `)}
     `;
   }
 
-  private renderMenuItem(item: interfaces.IMenuItem, group?: interfaces.IMenuGroup): TemplateResult {
+  private renderItem(item: interfaces.ISecondaryMenuItem, group?: interfaces.ISecondaryMenuGroup): TemplateResult {
+    // Check for hidden items
+    if ('hidden' in item && item.hidden) {
+      return html``;
+    }
+
+    // Determine item type
+    const itemType = 'type' in item ? item.type : 'tab';
+
+    switch (itemType) {
+      case 'action':
+        return this.renderActionItem(item as interfaces.ISecondaryMenuItemAction);
+      case 'filter':
+        return this.renderFilterItem(item as interfaces.ISecondaryMenuItemFilter);
+      case 'multiFilter':
+        return this.renderMultiFilterItem(item as interfaces.ISecondaryMenuItemMultiFilter);
+      case 'divider':
+        return this.renderDivider();
+      case 'header':
+        return this.renderHeader(item as interfaces.ISecondaryMenuItemHeader);
+      case 'link':
+        return this.renderLinkItem(item as interfaces.ISecondaryMenuItemLink);
+      case 'tab':
+      default:
+        return this.renderTabItem(item as interfaces.ISecondaryMenuItemTab, group);
+    }
+  }
+
+  private renderTabItem(item: interfaces.ISecondaryMenuItemTab, group?: interfaces.ISecondaryMenuGroup): TemplateResult {
     const isSelected = this.selectedItem?.key === item.key;
+    const isDisabled = item.disabled === true;
+
     return html`
       <div
-        class="menuItem ${isSelected ? 'selected' : ''}"
-        @click="${() => this.selectItem(item, group)}"
+        class="menuItem ${isSelected ? 'selected' : ''} ${isDisabled ? 'disabled' : ''}"
+        @click="${() => !isDisabled && this.selectTabItem(item, group)}"
         @contextmenu="${(e: MouseEvent) => this.handleContextMenu(e, item)}"
       >
-        ${item.iconName ? html`<dees-icon .icon="${item.iconName.startsWith('lucide:') ? item.iconName : `lucide:${item.iconName}`}"></dees-icon>` : ''}
+        ${item.iconName ? html`<dees-icon .icon="${this.normalizeIcon(item.iconName)}"></dees-icon>` : ''}
         <span class="itemLabel">${item.key}</span>
         ${item.badge !== undefined ? html`
           <span class="badge ${item.badgeVariant || 'default'}">${item.badge}</span>
@@ -503,6 +782,100 @@ export class DeesAppuiSecondarymenu extends DeesElement {
     `;
   }
 
+  private renderActionItem(item: interfaces.ISecondaryMenuItemAction): TemplateResult {
+    const variant = item.variant || 'primary';
+    const isDisabled = item.disabled === true;
+
+    return html`
+      <div
+        class="menuItem action-${variant} ${isDisabled ? 'disabled' : ''}"
+        @click="${() => !isDisabled && this.handleActionClick(item)}"
+      >
+        ${item.iconName ? html`<dees-icon .icon="${this.normalizeIcon(item.iconName)}"></dees-icon>` : ''}
+        <span class="itemLabel">${item.key}</span>
+        <span class="item-tooltip">${item.key}</span>
+      </div>
+    `;
+  }
+
+  private renderFilterItem(item: interfaces.ISecondaryMenuItemFilter): TemplateResult {
+    const isDisabled = item.disabled === true;
+
+    return html`
+      <div
+        class="menuItem filter ${item.active ? 'active' : ''} ${isDisabled ? 'disabled' : ''}"
+        @click="${() => !isDisabled && this.handleFilterToggle(item)}"
+      >
+        ${item.iconName ? html`<dees-icon .icon="${this.normalizeIcon(item.iconName)}"></dees-icon>` : ''}
+        <span class="itemLabel">${item.key}</span>
+        <div class="filter-checkbox ${item.active ? 'checked' : ''}">
+          ${item.active ? html`<dees-icon .icon="${'lucide:check'}"></dees-icon>` : ''}
+        </div>
+        <span class="item-tooltip">${item.key}</span>
+      </div>
+    `;
+  }
+
+  private renderMultiFilterItem(item: interfaces.ISecondaryMenuItemMultiFilter): TemplateResult {
+    const isCollapsed = this.collapsedMultiFilters.has(item.key);
+    const checkedCount = item.options.filter(opt => opt.checked).length;
+
+    return html`
+      <div class="multiFilter">
+        <div
+          class="multiFilter-header ${isCollapsed ? 'collapsed' : ''}"
+          @click="${() => this.toggleMultiFilter(item.key)}"
+        >
+          <span class="multiFilter-title">
+            ${item.iconName ? html`<dees-icon .icon="${this.normalizeIcon(item.iconName)}"></dees-icon>` : ''}
+            ${item.key}
+          </span>
+          ${checkedCount > 0 ? html`<span class="multiFilter-count">${checkedCount}</span>` : ''}
+          <dees-icon class="chevron" .icon="${'lucide:chevronDown'}"></dees-icon>
+        </div>
+        <div class="multiFilter-options ${isCollapsed ? 'collapsed' : ''}">
+          ${item.options.map(option => html`
+            <div
+              class="multiFilter-option"
+              @click="${() => this.handleMultiFilterOptionToggle(item, option.key)}"
+            >
+              <div class="option-checkbox ${option.checked ? 'checked' : ''}">
+                ${option.checked ? html`<dees-icon .icon="${'lucide:check'}"></dees-icon>` : ''}
+              </div>
+              ${option.iconName ? html`<dees-icon class="option-icon" .icon="${this.normalizeIcon(option.iconName)}"></dees-icon>` : ''}
+              <span>${option.label}</span>
+            </div>
+          `)}
+        </div>
+      </div>
+    `;
+  }
+
+  private renderDivider(): TemplateResult {
+    return html`<div class="menuDivider"></div>`;
+  }
+
+  private renderHeader(item: interfaces.ISecondaryMenuItemHeader): TemplateResult {
+    return html`<div class="menuHeader">${item.label}</div>`;
+  }
+
+  private renderLinkItem(item: interfaces.ISecondaryMenuItemLink): TemplateResult {
+    const isExternal = item.external ?? item.href.startsWith('http');
+    const isDisabled = item.disabled === true;
+
+    return html`
+      <div
+        class="menuItem link ${isDisabled ? 'disabled' : ''}"
+        @click="${() => !isDisabled && this.handleLinkClick(item)}"
+      >
+        ${item.iconName ? html`<dees-icon .icon="${this.normalizeIcon(item.iconName)}"></dees-icon>` : ''}
+        <span class="itemLabel">${item.key}</span>
+        ${isExternal ? html`<dees-icon class="external-icon" .icon="${'lucide:externalLink'}"></dees-icon>` : ''}
+        <span class="item-tooltip">${item.key}</span>
+      </div>
+    `;
+  }
+
   private renderLegacyOptions(): TemplateResult {
     return html`
       <div class="legacyOptions">
@@ -511,16 +884,25 @@ export class DeesAppuiSecondarymenu extends DeesElement {
             return html`<div class="divider"></div>`;
           }
           const item = option as interfaces.IMenuItem;
-          return this.renderMenuItem({
+          // Convert legacy IMenuItem to ISecondaryMenuItemTab
+          const tabItem: interfaces.ISecondaryMenuItemTab = {
             key: item.key,
             iconName: item.iconName,
             action: item.action,
-          });
+            badge: item.badge,
+            badgeVariant: item.badgeVariant,
+          };
+          return this.renderTabItem(tabItem);
         })}
       </div>
     `;
   }
 
+  // Helper to normalize icon names
+  private normalizeIcon(iconName: string): string {
+    return iconName.startsWith('lucide:') ? iconName : `lucide:${iconName}`;
+  }
+
   private toggleGroup(groupName: string): void {
     const newCollapsed = new Set(this.collapsedGroups);
     if (newCollapsed.has(groupName)) {
@@ -531,6 +913,16 @@ export class DeesAppuiSecondarymenu extends DeesElement {
     this.collapsedGroups = newCollapsed;
   }
 
+  private toggleMultiFilter(filterKey: string): void {
+    const newCollapsed = new Set(this.collapsedMultiFilters);
+    if (newCollapsed.has(filterKey)) {
+      newCollapsed.delete(filterKey);
+    } else {
+      newCollapsed.add(filterKey);
+    }
+    this.collapsedMultiFilters = newCollapsed;
+  }
+
   public toggleCollapse(): void {
     this.collapsed = !this.collapsed;
     this.dispatchEvent(new CustomEvent('collapse-change', {
@@ -540,7 +932,7 @@ export class DeesAppuiSecondarymenu extends DeesElement {
     }));
   }
 
-  private selectItem(item: interfaces.IMenuItem, group?: interfaces.IMenuGroup): void {
+  private selectTabItem(item: interfaces.ISecondaryMenuItemTab, group?: interfaces.ISecondaryMenuGroup): void {
     this.selectedItem = item;
     item.action();
 
@@ -551,7 +943,81 @@ export class DeesAppuiSecondarymenu extends DeesElement {
     }));
   }
 
-  private handleContextMenu(event: MouseEvent, item: interfaces.IMenuItem): void {
+  private async handleActionClick(item: interfaces.ISecondaryMenuItemAction): Promise<void> {
+    // Handle confirmation if required
+    if (item.confirmMessage) {
+      const confirmed = window.confirm(item.confirmMessage);
+      if (!confirmed) {
+        return;
+      }
+    }
+
+    await item.action();
+
+    this.dispatchEvent(new CustomEvent('action-click', {
+      detail: { item },
+      bubbles: true,
+      composed: true
+    }));
+  }
+
+  private handleFilterToggle(item: interfaces.ISecondaryMenuItemFilter): void {
+    const newActive = !item.active;
+    // Update the item's active state
+    item.active = newActive;
+    item.onToggle(newActive);
+
+    // Force re-render by incrementing the render counter
+    this.renderCounter++;
+
+    this.dispatchEvent(new CustomEvent('filter-toggle', {
+      detail: { item, active: newActive },
+      bubbles: true,
+      composed: true
+    }));
+  }
+
+  private handleMultiFilterOptionToggle(item: interfaces.ISecondaryMenuItemMultiFilter, optionKey: string): void {
+    // Update the option's checked state
+    const option = item.options.find(opt => opt.key === optionKey);
+    if (option) {
+      option.checked = !option.checked;
+    }
+
+    // Calculate the new selected keys
+    const selectedKeys = item.options
+      .filter(opt => opt.checked)
+      .map(opt => opt.key);
+
+    item.onChange(selectedKeys);
+
+    // Force re-render by incrementing the render counter
+    this.renderCounter++;
+
+    this.dispatchEvent(new CustomEvent('multifilter-change', {
+      detail: { item, selectedKeys },
+      bubbles: true,
+      composed: true
+    }));
+  }
+
+  private handleLinkClick(item: interfaces.ISecondaryMenuItemLink): void {
+    const isExternal = item.external ?? item.href.startsWith('http');
+
+    if (isExternal) {
+      window.open(item.href, '_blank', 'noopener,noreferrer');
+    } else {
+      window.location.href = item.href;
+    }
+
+    this.dispatchEvent(new CustomEvent('link-click', {
+      detail: { item },
+      bubbles: true,
+      composed: true
+    }));
+  }
+
+  private handleContextMenu(event: MouseEvent, item: interfaces.ISecondaryMenuItemTab): void {
     DeesContextmenu.openContextMenuWithOptions(event, [
       {
         name: 'View details',
@@ -572,26 +1038,52 @@ export class DeesAppuiSecondarymenu extends DeesElement {
     // Initialize collapsed state from group defaults
     if (this.groups.length > 0) {
       const initialCollapsed = new Set<string>();
+      const initialMultiFilterCollapsed = new Set<string>();
+
       this.groups.forEach(group => {
         if (group.collapsed) {
           initialCollapsed.add(group.name);
         }
-      });
-      this.collapsedGroups = initialCollapsed;
 
-      // Auto-select first item if none selected
-      if (!this.selectedItem && this.groups[0]?.items.length > 0) {
-        this.selectItem(this.groups[0].items[0], this.groups[0]);
+        // Check for collapsed multi-filters
+        group.items.forEach(item => {
+          if ('type' in item && item.type === 'multiFilter') {
+            const multiFilter = item as interfaces.ISecondaryMenuItemMultiFilter;
+            if (multiFilter.collapsed) {
+              initialMultiFilterCollapsed.add(multiFilter.key);
+            }
+          }
+        });
+      });
+
+      this.collapsedGroups = initialCollapsed;
+      this.collapsedMultiFilters = initialMultiFilterCollapsed;
+
+      // Auto-select first tab item if none selected
+      if (!this.selectedItem) {
+        for (const group of this.groups) {
+          for (const item of group.items) {
+            const itemType = 'type' in item ? item.type : 'tab';
+            if (itemType === 'tab' || itemType === undefined) {
+              const tabItem = item as interfaces.ISecondaryMenuItemTab;
+              if (!tabItem.disabled) {
+                this.selectTabItem(tabItem, group);
+                return;
+              }
+            }
+          }
+        }
       }
     } else if (this.selectionOptions.length > 0) {
       // Legacy mode: select first non-divider option
       const firstOption = this.selectionOptions.find(opt => !('divider' in opt)) as interfaces.IMenuItem;
       if (firstOption && !this.selectedItem) {
-        this.selectItem({
+        const tabItem: interfaces.ISecondaryMenuItemTab = {
           key: firstOption.key,
           iconName: firstOption.iconName,
           action: firstOption.action,
-        });
+        };
+        this.selectTabItem(tabItem);
       }
     }
   }

ts_web/elements/00group-appui/dees-appui/dees-appui.demo.ts

@@ -1,6 +1,7 @@
 import { html, css, DeesElement, customElement, state } from '@design.estate/dees-element';
-import type { DeesAppuiBase } from './dees-appui-base.js';
+import type { DeesAppui } from './dees-appui.js';
 import type { IAppConfig, IViewActivationContext } from '../../interfaces/appconfig.js';
+import type * as interfaces from '../../interfaces/index.js';
 import '@design.estate/dees-wcctools/demotools';
 
 // Demo view component with lifecycle hooks
@@ -16,7 +17,7 @@ class DemoDashboardView extends DeesElement {
     this.activated = true;
     console.log('Dashboard activated with context:', context);
 
-    // Set view-specific secondary menu
+    // Set view-specific secondary menu with new item types
     context.appui.setSecondaryMenu({
       heading: 'Dashboard',
       groups: [
@@ -24,17 +25,36 @@ class DemoDashboardView extends DeesElement {
           name: 'Quick Access',
           iconName: 'lucide:zap',
           items: [
-            { key: 'overview', iconName: 'layoutDashboard', action: () => console.log('Overview') },
-            { key: 'recent', iconName: 'clock', badge: 5, action: () => console.log('Recent') },
-          ]
+            { key: 'Overview', iconName: 'layoutDashboard', action: () => console.log('Overview') },
+            { key: 'Recent', iconName: 'clock', badge: 5, action: () => console.log('Recent') },
+            { type: 'divider' },
+            { type: 'action', key: 'Refresh Data', iconName: 'lucide:refreshCw', action: () => alert('Refreshing dashboard data...') },
+          ] as interfaces.ISecondaryMenuItem[]
+        },
+        {
+          name: 'Filters',
+          iconName: 'lucide:filter',
+          items: [
+            { type: 'header', label: 'Time Range' },
+            { type: 'filter', key: 'Live Updates', iconName: 'lucide:radio', active: true, onToggle: (active) => console.log('Live updates:', active) },
+            { type: 'filter', key: 'Show Archived', iconName: 'lucide:archive', active: false, onToggle: (active) => console.log('Show archived:', active) },
+            { type: 'divider' },
+            { type: 'multiFilter', key: 'Data Sources', iconName: 'lucide:database', options: [
+              { key: 'api', label: 'API Server', checked: true, iconName: 'lucide:server' },
+              { key: 'web', label: 'Web Traffic', checked: true, iconName: 'lucide:globe' },
+              { key: 'mobile', label: 'Mobile App', checked: false, iconName: 'lucide:smartphone' },
+            ], onChange: (keys) => console.log('Data sources:', keys) },
+          ] as interfaces.ISecondaryMenuItem[]
         },
         {
           name: 'Analytics',
           iconName: 'lucide:barChart3',
           items: [
-            { key: 'metrics', iconName: 'activity', action: () => console.log('Metrics') },
-            { key: 'reports', iconName: 'fileText', badge: 'new', badgeVariant: 'success', action: () => console.log('Reports') },
-          ]
+            { key: 'Metrics', iconName: 'activity', action: () => console.log('Metrics') },
+            { key: 'Reports', iconName: 'fileText', badge: 'new', badgeVariant: 'success', action: () => console.log('Reports') },
+            { type: 'divider' },
+            { type: 'link', key: 'Analytics Docs', iconName: 'lucide:externalLink', href: 'https://docs.example.com/analytics' },
+          ] as interfaces.ISecondaryMenuItem[]
         }
       ]
     });
@@ -197,7 +217,7 @@ class DemoSettingsView extends DeesElement {
   @state()
   accessor hasChanges: boolean = false;
 
-  private appui: DeesAppuiBase;
+  private appui: DeesAppui;
 
   onActivate(context: IViewActivationContext) {
     this.appui = context.appui as any;
@@ -322,11 +342,22 @@ class DemoProjectsView extends DeesElement {
       groups: [
         {
           name: 'My Projects',
+          iconName: 'lucide:folder',
           items: [
-            { key: 'active', iconName: 'folder', badge: 3, action: () => console.log('Active') },
-            { key: 'archived', iconName: 'archive', action: () => console.log('Archived') },
-            { key: 'shared', iconName: 'users', badge: 2, badgeVariant: 'warning', action: () => console.log('Shared') },
-          ]
+            { key: 'Active', iconName: 'folder', badge: 3, action: () => console.log('Active') },
+            { key: 'Archived', iconName: 'archive', action: () => console.log('Archived') },
+            { key: 'Shared', iconName: 'users', badge: 2, badgeVariant: 'warning', action: () => console.log('Shared') },
+          ] as interfaces.ISecondaryMenuItem[]
+        },
+        {
+          name: 'Quick Actions',
+          iconName: 'lucide:zap',
+          items: [
+            { type: 'action', key: 'New Project', iconName: 'lucide:folderPlus', action: () => alert('Create new project') },
+            { type: 'action', key: 'Import', iconName: 'lucide:download', action: () => alert('Import project') },
+            { type: 'divider' },
+            { type: 'link', key: 'Templates', iconName: 'lucide:layoutTemplate', href: 'https://templates.example.com' },
+          ] as interfaces.ISecondaryMenuItem[]
         }
       ]
     });
@@ -407,13 +438,40 @@ class DemoTasksView extends DeesElement {
       heading: 'Tasks',
       groups: [
         {
-          name: 'Filters',
+          name: 'Views',
+          iconName: 'lucide:eye',
           items: [
-            { key: 'all', iconName: 'list', badge: 12, action: () => console.log('All') },
-            { key: 'today', iconName: 'calendar', badge: 3, action: () => console.log('Today') },
-            { key: 'upcoming', iconName: 'clock', action: () => console.log('Upcoming') },
-            { key: 'completed', iconName: 'checkCircle', action: () => console.log('Completed') },
-          ]
+            { key: 'All Tasks', iconName: 'list', badge: 12, action: () => console.log('All') },
+            { key: 'Today', iconName: 'calendar', badge: 3, action: () => console.log('Today') },
+            { key: 'Upcoming', iconName: 'clock', action: () => console.log('Upcoming') },
+            { key: 'Completed', iconName: 'checkCircle', action: () => console.log('Completed') },
+          ] as interfaces.ISecondaryMenuItem[]
+        },
+        {
+          name: 'Filters',
+          iconName: 'lucide:filter',
+          items: [
+            { type: 'header', label: 'Priority' },
+            { type: 'multiFilter', key: 'Priority', iconName: 'lucide:flag', options: [
+              { key: 'high', label: 'High', checked: true, iconName: 'lucide:alertCircle' },
+              { key: 'medium', label: 'Medium', checked: true, iconName: 'lucide:minusCircle' },
+              { key: 'low', label: 'Low', checked: false, iconName: 'lucide:circle' },
+            ], onChange: (keys) => console.log('Priority filter:', keys) },
+            { type: 'divider' },
+            { type: 'header', label: 'Options' },
+            { type: 'filter', key: 'Show Subtasks', iconName: 'lucide:listTree', active: true, onToggle: (active) => console.log('Show subtasks:', active) },
+            { type: 'filter', key: 'Show Completed', iconName: 'lucide:checkSquare', active: false, onToggle: (active) => console.log('Show completed:', active) },
+          ] as interfaces.ISecondaryMenuItem[]
+        },
+        {
+          name: 'Actions',
+          iconName: 'lucide:zap',
+          items: [
+            { type: 'action', key: 'Add Task', iconName: 'lucide:plus', action: () => alert('Add new task') },
+            { type: 'action', key: 'Import Tasks', iconName: 'lucide:upload', action: () => alert('Import tasks') },
+            { type: 'divider' },
+            { type: 'action', key: 'Clear Completed', iconName: 'lucide:trash2', variant: 'danger', confirmMessage: 'Delete all completed tasks?', action: () => alert('Cleared completed tasks') },
+          ] as interfaces.ISecondaryMenuItem[]
         }
       ]
     });
@@ -619,7 +677,7 @@ export const demoFunc = () => {
   containerElement.className = 'demo-container';
   containerElement.style.cssText = 'position: absolute; top: 0; left: 0; height: 100%; width: 100%; overflow: hidden;';
 
-  const appuiElement = document.createElement('dees-appui-base') as DeesAppuiBase;
+  const appuiElement = document.createElement('dees-appui') as DeesAppui;
   containerElement.appendChild(appuiElement);
 
   // Initialize after element is connected

ts_web/elements/00group-appui/dees-appui/dees-appui.ts

@@ -15,7 +15,7 @@ import type { DeesAppuiMainmenu } from '../dees-appui-mainmenu/dees-appui-mainme
 import type { DeesAppuiSecondarymenu } from '../dees-appui-secondarymenu/dees-appui-secondarymenu.js';
 import type { DeesAppuiMaincontent } from '../dees-appui-maincontent/dees-appui-maincontent.js';
 import type { DeesAppuiActivitylog } from '../dees-appui-activitylog/dees-appui-activitylog.js';
-import { demoFunc } from './dees-appui-base.demo.js';
+import { demoFunc } from './dees-appui.demo.js';
 import { themeDefaultStyles } from '../../00theme.js';
 
 // View registry for managing views
@@ -30,12 +30,12 @@ import '../dees-appui-activitylog/dees-appui-activitylog.js';
 
 declare global {
   interface HTMLElementTagNameMap {
-    'dees-appui-base': DeesAppuiBase;
+    'dees-appui': DeesAppui;
   }
 }
 
-@customElement('dees-appui-base')
-export class DeesAppuiBase extends DeesElement {
+@customElement('dees-appui')
+export class DeesAppui extends DeesElement {
   public static demo = demoFunc;
 
   // ==========================================
@@ -98,10 +98,10 @@ export class DeesAppuiBase extends DeesElement {
   accessor secondarymenuHeading: string = '';
 
   @property({ type: Array })
-  accessor secondarymenuGroups: interfaces.IMenuGroup[] = [];
+  accessor secondarymenuGroups: interfaces.ISecondaryMenuGroup[] = [];
 
   @property({ type: Object })
-  accessor secondarymenuSelectedItem: interfaces.IMenuItem | undefined = undefined;
+  accessor secondarymenuSelectedItem: interfaces.ISecondaryMenuItemTab | undefined = undefined;
 
   // Collapse states
   @property({ type: Boolean })
@@ -126,6 +126,13 @@ export class DeesAppuiBase extends DeesElement {
   @property({ type: Number })
   accessor contentTabsAutoHideThreshold: number = 0;
 
+  // Activity log visibility and count
+  @state()
+  accessor activityLogVisible: boolean = false;
+
+  @state()
+  accessor activityLogCount: number = 0;
+
   // Properties for maincontent
   @property({ type: Array })
   accessor maincontentTabs: interfaces.IMenuItem[] = [];
@@ -175,8 +182,10 @@ export class DeesAppuiBase extends DeesElement {
         height: calc(100% - 40px);
         width: 100%;
         display: grid;
-        grid-template-columns: auto auto 1fr 240px;
+        /* grid-template-columns set dynamically in template */
         grid-template-rows: 1fr;
+        transition: grid-template-columns 0.3s ease;
+        overflow: hidden;
       }
 
       /* Z-index layering for proper stacking */
@@ -198,6 +207,19 @@ export class DeesAppuiBase extends DeesElement {
       .maingrid > dees-appui-activitylog {
         position: relative;
         z-index: 1;
+        overflow: hidden;
+        transition: opacity 0.3s ease, transform 0.3s ease;
+      }
+
+      .maingrid > dees-appui-activitylog.hidden {
+        opacity: 0;
+        transform: translateX(20px);
+        pointer-events: none;
+      }
+
+      .maingrid > dees-appui-activitylog.visible {
+        opacity: 1;
+        transform: translateX(0);
       }
 
       /* View container for dynamically loaded views */
@@ -221,14 +243,18 @@ export class DeesAppuiBase extends DeesElement {
         .user=${this.appbarUser}
         .profileMenuItems=${this.appbarProfileMenuItems}
         .showSearch=${this.appbarShowSearch}
+        .showActivityLogToggle=${true}
+        .activityLogCount=${this.activityLogCount}
+        .activityLogActive=${this.activityLogVisible}
         @menu-select=${(e: CustomEvent) => this.handleAppbarMenuSelect(e)}
         @breadcrumb-navigate=${(e: CustomEvent) => this.handleAppbarBreadcrumbNavigate(e)}
         @search-click=${() => this.handleAppbarSearchClick()}
         @search-query=${(e: CustomEvent) => this.handleAppbarSearchQuery(e)}
         @user-menu-open=${() => this.handleAppbarUserMenuOpen()}
         @profile-menu-select=${(e: CustomEvent) => this.handleAppbarProfileMenuSelect(e)}
+        @activity-toggle=${() => this.toggleActivityLog()}
       ></dees-appui-appbar>
-      <div class="maingrid">
+      <div class="maingrid" style="grid-template-columns: auto auto 1fr ${this.activityLogVisible ? '280px' : '0px'};">
         ${this.mainmenuVisible ? html`
           <dees-appui-mainmenu
             .logoIcon=${this.mainmenuLogoIcon}
@@ -264,7 +290,9 @@ export class DeesAppuiBase extends DeesElement {
           <div class="view-container"></div>
           <slot name="maincontent"></slot>
         </dees-appui-maincontent>
-        <dees-appui-activitylog></dees-appui-activitylog>
+        <dees-appui-activitylog
+          class="${this.activityLogVisible ? 'visible' : 'hidden'}"
+        ></dees-appui-activitylog>
       </div>
     `;
   }
@@ -277,8 +305,15 @@ export class DeesAppuiBase extends DeesElement {
     this.maincontent = this.shadowRoot!.querySelector('dees-appui-maincontent') as DeesAppuiMaincontent;
     this.activitylogElement = this.shadowRoot!.querySelector('dees-appui-activitylog') as DeesAppuiActivitylog;
 
+    // Subscribe to activity log entry changes for badge count
+    if (this.activitylogElement) {
+      this.activitylogElement.entries$.subscribe((entries) => {
+        this.activityLogCount = entries.length;
+      });
+    }
+
     // Set appui reference in view registry for lifecycle context
-    this.viewRegistry.setAppuiRef(this as unknown as interfaces.TDeesAppuiBase);
+    this.viewRegistry.setAppuiRef(this as unknown as interfaces.TDeesAppui);
   }
 
   async disconnectedCallback() {
@@ -534,7 +569,7 @@ export class DeesAppuiBase extends DeesElement {
   /**
    * Set the secondary menu configuration
    */
-  public setSecondaryMenu(config: { heading?: string; groups: interfaces.IMenuGroup[] }): void {
+  public setSecondaryMenu(config: { heading?: string; groups: interfaces.ISecondaryMenuGroup[] }): void {
     if (config.heading !== undefined) {
       this.secondarymenuHeading = config.heading;
     }
@@ -544,7 +579,7 @@ export class DeesAppuiBase extends DeesElement {
   /**
    * Update a specific secondary menu group
    */
-  public updateSecondaryMenuGroup(groupName: string, update: Partial<interfaces.IMenuGroup>): void {
+  public updateSecondaryMenuGroup(groupName: string, update: Partial<interfaces.ISecondaryMenuGroup>): void {
     this.secondarymenuGroups = this.secondarymenuGroups.map(group =>
       group.name === groupName ? { ...group, ...update } : group
     );
@@ -555,7 +590,7 @@ export class DeesAppuiBase extends DeesElement {
    */
   public addSecondaryMenuItem(
     groupName: string,
-    item: interfaces.IMenuGroup['items'][0]
+    item: interfaces.ISecondaryMenuItem
   ): void {
     this.secondarymenuGroups = this.secondarymenuGroups.map(group => {
       if (group.name === groupName) {
@@ -569,13 +604,13 @@ export class DeesAppuiBase extends DeesElement {
   }
 
   /**
-   * Set the selected secondary menu item by key
+   * Set the selected secondary menu item by key (for tab items only)
    */
   public setSecondaryMenuSelection(itemKey: string): void {
     for (const group of this.secondarymenuGroups) {
-      const item = group.items.find(i => i.key === itemKey);
-      if (item) {
-        this.secondarymenuSelectedItem = item;
+      const item = group.items.find(i => 'key' in i && i.key === itemKey);
+      if (item && (!('type' in item) || item.type === 'tab' || item.type === undefined)) {
+        this.secondarymenuSelectedItem = item as interfaces.ISecondaryMenuItemTab;
         return;
       }
     }
@@ -673,6 +708,27 @@ export class DeesAppuiBase extends DeesElement {
     };
   }
 
+  /**
+   * Set activity log visibility
+   */
+  public setActivityLogVisible(visible: boolean): void {
+    this.activityLogVisible = visible;
+  }
+
+  /**
+   * Toggle activity log visibility
+   */
+  public toggleActivityLog(): void {
+    this.activityLogVisible = !this.activityLogVisible;
+  }
+
+  /**
+   * Get activity log visibility state
+   */
+  public getActivityLogVisible(): boolean {
+    return this.activityLogVisible;
+  }
+
   // ==========================================
   // PROGRAMMATIC API: NAVIGATION
   // ==========================================

ts_web/elements/00group-appui/dees-appui/index.ts

@@ -0,0 +1,2 @@
+export * from './dees-appui.js';
+export * from './view.registry.js';

ts_web/elements/00group-appui/dees-appui/readme.md

@@ -1,19 +1,19 @@
-# DeesAppuiBase
+# DeesAppui
 
-A comprehensive application shell component providing a complete UI framework with navigation, menus, activity logging, and view management.
+A comprehensive application shell component providing a complete UI framework with navigation, menus, activity logging, and view management. 🚀
 
 ## Quick Start
 
 ```typescript
 import { html, DeesElement, customElement } from '@design.estate/dees-element';
-import { DeesAppuiBase } from '@design.estate/dees-catalog';
+import { DeesAppui } from '@design.estate/dees-catalog';
 
 @customElement('my-app')
 class MyApp extends DeesElement {
-  private appui: DeesAppuiBase;
+  private appui: DeesAppui;
 
   async firstUpdated() {
-    this.appui = this.shadowRoot.querySelector('dees-appui-base');
+    this.appui = this.shadowRoot.querySelector('dees-appui');
 
     // Configure with views and menu
     this.appui.configure({
@@ -30,11 +30,39 @@ class MyApp extends DeesElement {
   }
 
   render() {
-    return html`<dees-appui-base></dees-appui-base>`;
+    return html`<dees-appui></dees-appui>`;
   }
 }
 ```
 
+## Architecture Overview
+
+The DeesAppui shell consists of several interconnected components:
+
+```
+┌─────────────────────────────────────────────────────────────────────┐
+│  AppBar (dees-appui-appbar)                                         │
+│  ├── Menus (File, Edit, View...)                                    │
+│  ├── Breadcrumbs                                                    │
+│  ├── User Profile + Dropdown                                        │
+│  └── Activity Log Toggle                                            │
+├─────────────┬───────────────────────────────────┬───────────────────┤
+│ Main Menu   │  Content Area                     │  Activity Log     │
+│ (collapsed/ │  ├── Content Tabs                 │  (slide panel)    │
+│  expanded)  │  │   (closable, from tables/lists)│                   │
+│             │  └── View Container               │                   │
+│ ┌─────────┐ │      └── Active View              │                   │
+│ │ 🏠 Home │ ├─────────────────────────────────┐ │                   │
+│ │ 📁 Files│ │ Secondary Menu                  │ │                   │
+│ │ ⚙ Settings ├── Collapsible Groups            │ │                   │
+│ │         │ │   ├── Item 1                    │ │                   │
+│ └─────────┘ │   ├── Item 2 (with badge)       │ │                   │
+│             │   └── Item 3                    │ │                   │
+└─────────────┴─────────────────────────────────┴───────────────────────┘
+```
+
+---
+
 ## Configuration API
 
 ### `configure(config: IAppConfig)`
@@ -155,74 +183,289 @@ appui.removeMainMenuItem('Main', 'tasks');
 
 // Selection
 appui.setMainMenuSelection('dashboard');
-appui.setMainMenuCollapsed(true);
+
+// Visibility control
+appui.setMainMenuCollapsed(true);     // Collapse to icon-only sidebar
+appui.setMainMenuVisible(false);       // Hide completely
 
 // Badges
 appui.setMainMenuBadge('inbox', 12);
 appui.clearMainMenuBadge('inbox');
 ```
 
-### Secondary Menu API
+---
 
-Views can control the secondary (contextual) menu.
+## Secondary Menu API 📋
+
+The secondary menu is a contextual sidebar that appears next to the main content area. It supports **collapsible groups** with icons and badges, making it perfect for:
+
+- **Settings pages** (grouped settings categories)
+- **File browsers** (folder trees)
+- **Project navigation** (grouped by category)
+- **Documentation** (chapters/sections)
+
+### Collapsible Groups
+
+Groups can be collapsed/expanded by clicking the group header. The state is visually indicated with an icon rotation.
 
 ```typescript
-// Set menu
+// Set secondary menu with collapsible groups
 appui.setSecondaryMenu({
   heading: 'Settings',
   groups: [
     {
       name: 'Account',
+      iconName: 'lucide:user',        // Group icon
+      collapsed: false,                // Initial state (default: false)
       items: [
-        { key: 'profile', iconName: 'lucide:user', action: () => {} },
-        { key: 'security', iconName: 'lucide:shield', action: () => {} },
+        { key: 'profile', iconName: 'lucide:user', action: () => showProfile() },
+        { key: 'security', iconName: 'lucide:shield', badge: '!', badgeVariant: 'warning', action: () => showSecurity() },
+        { key: 'billing', iconName: 'lucide:credit-card', action: () => showBilling() }
+      ]
+    },
+    {
+      name: 'Preferences',
+      iconName: 'lucide:settings',
+      collapsed: true,                 // Start collapsed
+      items: [
+        { key: 'notifications', iconName: 'lucide:bell', action: () => {} },
+        { key: 'appearance', iconName: 'lucide:palette', action: () => {} },
+        { key: 'language', iconName: 'lucide:globe', action: () => {} }
       ]
     }
   ]
 });
+```
 
-// Update group
-appui.updateSecondaryMenuGroup('Account', { items: newItems });
+### Secondary Menu Item Properties
 
-// Add item
-appui.addSecondaryMenuItem('Account', {
-  key: 'notifications',
-  iconName: 'lucide:bell',
-  action: () => {}
+```typescript
+interface ISecondaryMenuItem {
+  key: string;                    // Unique identifier
+  iconName?: string;              // Icon (e.g., 'lucide:user')
+  action: () => void;             // Click handler
+  badge?: string | number;        // Badge text/count
+  badgeVariant?: 'default' | 'success' | 'warning' | 'error';
+}
+
+interface ISecondaryMenuGroup {
+  name: string;                   // Group name (shown in header)
+  iconName?: string;              // Group icon
+  collapsed?: boolean;            // Initial collapsed state
+  items: ISecondaryMenuItem[];    // Items in this group
+}
+```
+
+### Updating Secondary Menu
+
+```typescript
+// Update a specific group
+appui.updateSecondaryMenuGroup('Account', {
+  items: [...newItems]
 });
 
-// Selection
+// Add item to a group
+appui.addSecondaryMenuItem('Account', {
+  key: 'api-keys',
+  iconName: 'lucide:key',
+  action: () => showApiKeys()
+});
+
+// Selection (highlights the item)
 appui.setSecondaryMenuSelection('profile');
 
+// Visibility control
+appui.setSecondaryMenuCollapsed(true);   // Collapse panel
+appui.setSecondaryMenuVisible(false);     // Hide completely
+
 // Clear
 appui.clearSecondaryMenu();
 ```
 
-### Content Tabs API
+### View-Specific Secondary Menus
 
-Control tabs in the main content area.
+Each view can define its own secondary menu that appears when the view is activated:
 
 ```typescript
-// Set tabs
-appui.setContentTabs([
-  { key: 'code', iconName: 'lucide:code', action: () => {} },
-  { key: 'preview', iconName: 'lucide:eye', action: () => {} }
-]);
+// In view definition
+{
+  id: 'settings',
+  name: 'Settings',
+  content: 'my-settings-view',
+  secondaryMenu: [
+    {
+      name: 'General',
+      items: [
+        { key: 'account', iconName: 'lucide:user', action: () => {} },
+        { key: 'security', iconName: 'lucide:shield', action: () => {} }
+      ]
+    }
+  ]
+}
 
-// Add/remove
-appui.addContentTab({ key: 'debug', iconName: 'lucide:bug', action: () => {} });
-appui.removeContentTab('debug');
-
-// Select
-appui.selectContentTab('preview');
-
-// Get current
-const current = appui.getSelectedContentTab();
+// Or set dynamically in view's onActivate hook
+onActivate(context: IViewActivationContext) {
+  context.appui.setSecondaryMenu({
+    heading: 'Project Files',
+    groups: [...]
+  });
+}
 ```
 
-### Activity Log API
+---
 
-Add activity entries to the right-side activity log.
+## Content Tabs API 📑
+
+Content tabs appear above the main view content. They're designed for **opening multiple items** from tables, lists, or other data sources—similar to browser tabs or IDE editor tabs.
+
+### Common Use Cases
+
+- **Table row details** - Click a row to open it as a tab
+- **Document editing** - Open multiple documents
+- **Entity inspection** - View customer, order, product details
+- **Multi-file editing** - Edit multiple configuration files
+
+### Closable Tabs
+
+Tabs can be closable, allowing users to open items, work with them, and close when done:
+
+```typescript
+// Set initial tabs
+appui.setContentTabs([
+  { key: 'overview', iconName: 'lucide:home', action: () => showOverview() },
+  { key: 'activity', iconName: 'lucide:activity', action: () => showActivity() }
+]);
+
+// Add a closable tab when user clicks a table row
+table.addEventListener('row-click', (e) => {
+  const item = e.detail.item;
+
+  appui.addContentTab({
+    key: `item-${item.id}`,
+    label: item.name,                      // Display label
+    iconName: 'lucide:file',
+    closable: true,                        // Allow closing
+    action: () => showItemDetails(item)
+  });
+
+  // Select the new tab
+  appui.selectContentTab(`item-${item.id}`);
+});
+
+// Handle tab close
+appui.addEventListener('tab-close', (e) => {
+  const tabKey = e.detail.key;
+  // Cleanup resources if needed
+  console.log(`Tab ${tabKey} closed`);
+});
+```
+
+### Tab Management
+
+```typescript
+// Add/remove tabs
+appui.addContentTab({
+  key: 'debug',
+  iconName: 'lucide:bug',
+  closable: true,
+  action: () => {}
+});
+appui.removeContentTab('debug');
+
+// Select tab
+appui.selectContentTab('preview');
+
+// Get current tab
+const current = appui.getSelectedContentTab();
+
+// Visibility control
+appui.setContentTabsVisible(false);        // Hide tab bar
+
+// Auto-hide when only one tab
+appui.setContentTabsAutoHide(true, 1);     // Hide when ≤ 1 tab
+```
+
+### Opening Items from Tables/Lists
+
+A common pattern is opening table rows as closable tabs:
+
+```typescript
+@customElement('my-customers-view')
+class MyCustomersView extends DeesElement {
+  private appui: DeesAppui;
+
+  onActivate(context: IViewActivationContext) {
+    this.appui = context.appui;
+
+    // Set base tabs
+    this.appui.setContentTabs([
+      { key: 'list', label: 'All Customers', iconName: 'lucide:users', action: () => this.showList() }
+    ]);
+  }
+
+  render() {
+    return html`
+      <dees-table
+        .data=${this.customers}
+        @row-dblclick=${this.openCustomerTab}
+      ></dees-table>
+    `;
+  }
+
+  openCustomerTab(e: CustomEvent) {
+    const customer = e.detail.item;
+    const tabKey = `customer-${customer.id}`;
+
+    // Check if tab already exists
+    const existingTab = this.appui.getSelectedContentTab();
+    if (existingTab?.key === tabKey) {
+      return; // Already viewing this customer
+    }
+
+    // Add new closable tab
+    this.appui.addContentTab({
+      key: tabKey,
+      label: customer.name,
+      iconName: 'lucide:user',
+      closable: true,
+      action: () => this.showCustomerDetails(customer)
+    });
+
+    this.appui.selectContentTab(tabKey);
+  }
+
+  showCustomerDetails(customer: Customer) {
+    // Render customer details
+    this.currentView = html`<customer-details .customer=${customer}></customer-details>`;
+  }
+
+  showList() {
+    this.currentView = html`<dees-table ...></dees-table>`;
+  }
+}
+```
+
+---
+
+## Activity Log API 📊
+
+The activity log is a slide-out panel on the right side showing user actions and system events.
+
+### Activity Log Toggle
+
+The appbar includes a toggle button with a badge showing the entry count:
+
+```typescript
+// Control visibility
+appui.setActivityLogVisible(true);     // Show panel
+appui.toggleActivityLog();             // Toggle state
+const isVisible = appui.getActivityLogVisible();
+
+// The toggle button automatically shows entry count
+// Add entries and the badge updates automatically
+```
+
+### Adding Entries
 
 ```typescript
 // Add single entry
@@ -234,19 +477,35 @@ appui.activityLog.add({
   data: { invoiceId: '123' }     // Optional metadata
 });
 
-// Add multiple
+// Add multiple entries (e.g., from backend)
 appui.activityLog.addMany([...entries]);
 
-// Clear
+// Clear all entries
 appui.activityLog.clear();
 
-// Query
+// Query entries
 const entries = appui.activityLog.getEntries();
 const filtered = appui.activityLog.filter({ user: 'John', type: 'create' });
 const searched = appui.activityLog.search('invoice');
 ```
 
-### Navigation API
+### Activity Entry Types
+
+Each type has a default icon that can be overridden:
+
+| Type | Default Icon | Use Case |
+|------|--------------|----------|
+| `login` | `lucide:log-in` | User sign-in |
+| `logout` | `lucide:log-out` | User sign-out |
+| `view` | `lucide:eye` | Page/item viewed |
+| `create` | `lucide:plus` | New item created |
+| `update` | `lucide:pencil` | Item modified |
+| `delete` | `lucide:trash` | Item deleted |
+| `custom` | `lucide:activity` | Custom events |
+
+---
+
+## Navigation API
 
 Navigate between views programmatically.
 
@@ -329,7 +588,7 @@ class MySettingsView extends DeesElement implements IViewLifecycle {
 
 ```typescript
 interface IViewActivationContext {
-  appui: DeesAppuiBase;           // Reference to the app shell
+  appui: DeesAppui;           // Reference to the app shell
   viewId: string;                  // The view ID being activated
   params?: Record<string, string>; // Route parameters
 }
@@ -421,14 +680,14 @@ appui.viewChanged$.subscribe((event) => {
 
 ```typescript
 import { html, DeesElement, customElement } from '@design.estate/dees-element';
-import { DeesAppuiBase, IViewActivationContext } from '@design.estate/dees-catalog';
+import { DeesAppui, IViewActivationContext } from '@design.estate/dees-catalog';
 
 @customElement('my-app')
 class MyApp extends DeesElement {
-  private appui: DeesAppuiBase;
+  private appui: DeesAppui;
 
   async firstUpdated() {
-    this.appui = this.shadowRoot.querySelector('dees-appui-base');
+    this.appui = this.shadowRoot.querySelector('dees-appui');
 
     this.appui.configure({
       branding: {
@@ -494,14 +753,14 @@ class MyApp extends DeesElement {
   }
 
   render() {
-    return html`<dees-appui-base></dees-appui-base>`;
+    return html`<dees-appui></dees-appui>`;
   }
 }
 
 // View with lifecycle hooks
 @customElement('crm-settings')
 class CrmSettings extends DeesElement {
-  private appui: DeesAppuiBase;
+  private appui: DeesAppui;
 
   onActivate(context: IViewActivationContext) {
     this.appui = context.appui;
@@ -512,6 +771,7 @@ class CrmSettings extends DeesElement {
       groups: [
         {
           name: 'Account',
+          iconName: 'lucide:user',
           items: [
             { key: 'profile', iconName: 'lucide:user', action: () => this.showSection('profile') },
             { key: 'security', iconName: 'lucide:shield', action: () => this.showSection('security') }
@@ -519,6 +779,8 @@ class CrmSettings extends DeesElement {
         },
         {
           name: 'Preferences',
+          iconName: 'lucide:settings',
+          collapsed: true,
           items: [
             { key: 'notifications', iconName: 'lucide:bell', action: () => this.showSection('notifications') }
           ]
@@ -557,4 +819,5 @@ All interfaces are exported from `@design.estate/dees-catalog`:
 - `IAppBarMenuItem` - App bar menu item
 - `IMainMenuConfig` - Main menu configuration
 - `ISecondaryMenuGroup` - Secondary menu group
-- `ITab` - Tab definition
+- `ISecondaryMenuItem` - Secondary menu item
+- `IMenuItem` - Tab/menu item definition

ts_web/elements/00group-appui/dees-appui/view.registry.ts

@@ -3,7 +3,7 @@ import type {
   IViewDefinition,
   IViewActivationContext,
   IViewLifecycle,
-  TDeesAppuiBase
+  TDeesAppui
 } from '../../interfaces/appconfig.js';
 
 /**
@@ -18,12 +18,12 @@ export class ViewRegistry {
   private views: Map<string, IViewDefinition> = new Map();
   private instances: Map<string, HTMLElement> = new Map();
   private currentViewId: string | null = null;
-  private appui: TDeesAppuiBase | null = null;
+  private appui: TDeesAppui | null = null;
 
   /**
    * Set the appui reference for view activation context
    */
-  public setAppuiRef(appui: TDeesAppuiBase): void {
+  public setAppuiRef(appui: TDeesAppui): void {
     this.appui = appui;
   }
 

ts_web/elements/00group-appui/index.ts

@@ -1,7 +1,7 @@
 // App UI Components
 export * from './dees-appui-activitylog/index.js';
 export * from './dees-appui-appbar/index.js';
-export * from './dees-appui-base/index.js';
+export * from './dees-appui/index.js';
 export * from './dees-appui-maincontent/index.js';
 export * from './dees-appui-mainmenu/index.js';
 export * from './dees-appui-secondarymenu/index.js';

ts_web/elements/00group-chart/dees-chart-area/component.ts

@@ -11,7 +11,8 @@ import { demoFunc } from './demo.js';
 import { chartAreaStyles } from './styles.js';
 import { renderChartArea } from './template.js';
 
-import ApexCharts from 'apexcharts';
+import type ApexCharts from 'apexcharts';
+import { DeesServiceLibLoader } from '../../../services/index.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -151,6 +152,9 @@ export class DeesChartArea extends DeesElement {
   public async firstUpdated() {
     await this.domtoolsPromise;
 
+    // Load ApexCharts from CDN
+    const ApexChartsLib = await DeesServiceLibLoader.getInstance().loadApexCharts();
+
     // Wait for next animation frame to ensure layout is complete
     await new Promise(resolve => requestAnimationFrame(resolve));
     
@@ -353,7 +357,7 @@ export class DeesChartArea extends DeesElement {
     };
     
     try {
-      this.chart = new ApexCharts(this.shadowRoot.querySelector('.chartContainer'), options);
+      this.chart = new ApexChartsLib(this.shadowRoot.querySelector('.chartContainer'), options);
       await this.chart.render();
       
       // Give the chart a moment to fully initialize before resizing

ts_web/elements/00group-dataview/dees-dataview-codebox/dees-dataview-codebox.ts

@@ -10,12 +10,13 @@ import {
 } from '@design.estate/dees-element';
 import { cssGeistFontFamily, cssMonoFontFamily } from '../../00fonts.js';
 
-import hlight from 'highlight.js';
+import type { HLJSApi } from 'highlight.js';
 
 import * as smartstring from '@push.rocks/smartstring';
 
 import * as domtools from '@design.estate/dees-domtools';
 import { DeesContextmenu } from '../../dees-contextmenu/dees-contextmenu.js';
+import { DeesServiceLibLoader } from '../../../services/index.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -229,6 +230,7 @@ export class DeesDataviewCodebox extends DeesElement {
   }
 
   private codeToDisplayStore = '';
+  private highlightJs: HLJSApi | null = null;
 
   public async updated(_changedProperties) {
     super.updated(_changedProperties);
@@ -250,11 +252,17 @@ export class DeesDataviewCodebox extends DeesElement {
       this.codeToDisplay = this.codeToDisplayStore;
     }
     await domtools.plugins.smartdelay.delayFor(0);
+
+    // Load highlight.js from CDN if not already loaded
+    if (!this.highlightJs) {
+      this.highlightJs = await DeesServiceLibLoader.getInstance().loadHighlightJs();
+    }
+
     const localCodeNode = this.shadowRoot.querySelector('code');
-    const html = hlight.highlight(this.codeToDisplayStore, {
+    const highlightedHtml = this.highlightJs.highlight(this.codeToDisplayStore, {
       language: this.progLang,
       ignoreIllegals: true,
     });
-    localCodeNode.innerHTML = html.value;
+    localCodeNode.innerHTML = highlightedHtml.value;
   }
 }

ts_web/elements/00group-input/dees-input-richtext/component.ts

@@ -14,12 +14,8 @@ import {
   query,
 } from '@design.estate/dees-element';
 
-import { Editor } from '@tiptap/core';
-import StarterKit from '@tiptap/starter-kit';
-import Underline from '@tiptap/extension-underline';
-import TextAlign from '@tiptap/extension-text-align';
-import Link from '@tiptap/extension-link';
-import Typography from '@tiptap/extension-typography';
+import type { Editor } from '@tiptap/core';
+import { DeesServiceLibLoader, type ITiptapBundle } from '../../../services/index.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -63,6 +59,7 @@ export class DeesInputRichtext extends DeesInputBase<string> {
 
   private editorElement: HTMLElement;
   private linkInputElement: HTMLInputElement;
+  private tiptapBundle: ITiptapBundle | null = null;
 
   public editor: Editor;
 
@@ -233,13 +230,19 @@ export class DeesInputRichtext extends DeesInputBase<string> {
 
   public async firstUpdated() {
     await this.updateComplete;
+
+    // Load Tiptap from CDN
+    this.tiptapBundle = await DeesServiceLibLoader.getInstance().loadTiptap();
+
     this.editorElement = this.shadowRoot.querySelector('.editor-content');
     this.linkInputElement = this.shadowRoot.querySelector('.link-input input');
     this.initializeEditor();
   }
 
   private initializeEditor(): void {
-    if (this.disabled) return;
+    if (this.disabled || !this.tiptapBundle) return;
+
+    const { Editor, StarterKit, Underline, TextAlign, Link, Typography } = this.tiptapBundle;
 
     this.editor = new Editor({
       element: this.editorElement,
@@ -249,7 +252,7 @@ export class DeesInputRichtext extends DeesInputBase<string> {
             levels: [1, 2, 3],
           },
         }),
-        Underline,
+        Underline.configure({}),
         TextAlign.configure({
           types: ['heading', 'paragraph'],
         }),
@@ -259,7 +262,7 @@ export class DeesInputRichtext extends DeesInputBase<string> {
             class: 'editor-link',
           },
         }),
-        Typography,
+        Typography.configure({}),
       ],
       content: this.value || (this.placeholder ? `<p>${this.placeholder}</p>` : ''),
       onUpdate: ({ editor }) => {

ts_web/elements/00group-input/dees-input-wysiwyg/blocks/text/code.block.ts

@@ -2,9 +2,10 @@ import { BaseBlockHandler, type IBlockEventHandlers } from '../block.base.js';
 import type { IBlock } from '../../wysiwyg.types.js';
 import { cssManager } from '@design.estate/dees-element';
 import { WysiwygSelection } from '../../wysiwyg.selection.js';
-import hlight from 'highlight.js';
+import type { HLJSApi } from 'highlight.js';
 import { cssGeistFontFamily, cssMonoFontFamily } from '../../../../00fonts.js';
 import { PROGRAMMING_LANGUAGES } from '../../wysiwyg.constants.js';
+import { DeesServiceLibLoader } from '../../../../../services/index.js';
 
 /**
  * CodeBlockHandler with improved architecture
@@ -20,6 +21,7 @@ export class CodeBlockHandler extends BaseBlockHandler {
   type = 'code';
 
   private highlightTimer: any = null;
+  private highlightJs: HLJSApi | null = null;
   
   render(block: IBlock, isSelected: boolean): string {
     const language = block.metadata?.language || 'typescript';
@@ -306,10 +308,15 @@ export class CodeBlockHandler extends BaseBlockHandler {
     return linesBeforeCursor.length - 1; // 0-indexed
   }
   
-  private applyHighlighting(element: HTMLElement, block: IBlock): void {
+  private async applyHighlighting(element: HTMLElement, block: IBlock): Promise<void> {
     const editor = element.querySelector('.code-editor') as HTMLElement;
     if (!editor) return;
 
+    // Load highlight.js from CDN if not already loaded
+    if (!this.highlightJs) {
+      this.highlightJs = await DeesServiceLibLoader.getInstance().loadHighlightJs();
+    }
+
     // Store cursor position
     const cursorPos = this.getCursorPosition(element);
 
@@ -319,9 +326,9 @@ export class CodeBlockHandler extends BaseBlockHandler {
 
     // Apply highlighting
     try {
-      const result = hlight.highlight(content, { 
+      const result = this.highlightJs.highlight(content, {
         language: language,
-        ignoreIllegals: true 
+        ignoreIllegals: true,
       });
 
       // Only update if we have valid highlighted content

ts_web/elements/00group-runtime/environments/WebContainerEnvironment.ts

@@ -1,4 +1,4 @@
-import * as webcontainer from '@webcontainer/api';
+import * as webcontainer from '@tempfix/webcontainer__api';
 import type { IExecutionEnvironment, IFileEntry, IFileWatcher, IProcessHandle } from '../interfaces/IExecutionEnvironment.js';
 
 /**

ts_web/elements/00group-simple/dees-simple-appdash/dees-simple-appdash.ts

@@ -417,7 +417,6 @@ export class DeesSimpleAppDash extends DeesElement {
     terminal.style.opacity = '0';
     terminal.style.transform = 'translateY(8px) scale(0.99)';
     terminal.style.transition = 'all 0.25s cubic-bezier(0.4, 0, 0.2, 1)';
-    terminal.background = 'hsl(220 13% 8%)';
     terminal.style.boxShadow = '0 25px 50px -12px rgb(0 0 0 / 0.5), 0 0 0 1px rgb(255 255 255 / 0.05)';
     terminal.style.maxWidth = `calc(${maincontainer.clientWidth}px -240px)`;
     terminal.style.maxHeight = `calc(${maincontainer.clientHeight}px - 24px)`;

ts_web/elements/00group-workspace/dees-workspace-bottombar/dees-workspace-bottombar.ts

@@ -0,0 +1,548 @@
+import {
+  DeesElement,
+  property,
+  html,
+  customElement,
+  type TemplateResult,
+  css,
+  cssManager,
+  state,
+} from '@design.estate/dees-element';
+import { themeDefaultStyles } from '../../00theme.js';
+import type { IExecutionEnvironment } from '../../00group-runtime/index.js';
+import '../../dees-icon/dees-icon.js';
+import { DeesContextmenu } from '../../dees-contextmenu/dees-contextmenu.js';
+import type { IRunProcessEventDetail, ITerminalProcessCompleteEventDetail } from '../dees-workspace-terminal/interfaces.js';
+
+declare global {
+  interface HTMLElementTagNameMap {
+    'dees-workspace-bottombar': DeesWorkspaceBottombar;
+  }
+}
+
+interface IOutdatedPackage {
+  name: string;
+  current: string;
+  wanted: string;
+  latest: string;
+  type: 'dependencies' | 'devDependencies';
+}
+
+@customElement('dees-workspace-bottombar')
+export class DeesWorkspaceBottombar extends DeesElement {
+  // INSTANCE
+  @property({ type: Object })
+  accessor executionEnvironment: IExecutionEnvironment | null = null;
+
+  // Script runner state
+  @state()
+  accessor scripts: Record<string, string> = {};
+
+  // Package checker state
+  @state()
+  accessor packageStatus: 'checking' | 'up-to-date' | 'updates-available' | 'error' | 'idle' = 'idle';
+
+  @state()
+  accessor outdatedPackages: IOutdatedPackage[] = [];
+
+  @state()
+  accessor isCheckingPackages: boolean = false;
+
+  // Track if we have a pending package update that should trigger refresh
+  private pendingPackageUpdate: boolean = false;
+
+  // Bound handler for process-complete events
+  private handleProcessComplete = (e: CustomEvent<ITerminalProcessCompleteEventDetail>) => {
+    // If we have a pending package update and a process completed, refresh
+    if (this.pendingPackageUpdate) {
+      this.pendingPackageUpdate = false;
+      // Small delay to let pnpm-lock.yaml update
+      setTimeout(() => this.checkPackages(), 500);
+    }
+  };
+
+  public static styles = [
+    themeDefaultStyles,
+    cssManager.defaultStyles,
+    css`
+      :host {
+        display: block;
+        height: 24px;
+        flex-shrink: 0;
+      }
+
+      .bottom-bar {
+        height: 24px;
+        display: flex;
+        align-items: center;
+        padding: 0 8px;
+        gap: 4px;
+        background: ${cssManager.bdTheme('hsl(0 0% 94%)', 'hsl(0 0% 6%)')};
+        border-top: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 15%)')};
+        font-size: 11px;
+        color: ${cssManager.bdTheme('hsl(0 0% 40%)', 'hsl(0 0% 60%)')};
+      }
+
+      .widget {
+        display: flex;
+        align-items: center;
+        gap: 4px;
+        padding: 2px 6px;
+        border-radius: 3px;
+        cursor: pointer;
+        transition: background 0.15s ease, color 0.15s ease;
+        white-space: nowrap;
+      }
+
+      .widget:hover {
+        background: ${cssManager.bdTheme('hsl(0 0% 88%)', 'hsl(0 0% 12%)')};
+        color: ${cssManager.bdTheme('hsl(0 0% 20%)', 'hsl(0 0% 80%)')};
+      }
+
+      .widget dees-icon {
+        flex-shrink: 0;
+      }
+
+      .widget-separator {
+        width: 1px;
+        height: 14px;
+        background: ${cssManager.bdTheme('hsl(0 0% 80%)', 'hsl(0 0% 20%)')};
+        margin: 0 4px;
+      }
+
+      .widget.running {
+        color: ${cssManager.bdTheme('hsl(210 100% 45%)', 'hsl(210 100% 60%)')};
+      }
+
+      .widget.up-to-date {
+        color: ${cssManager.bdTheme('hsl(142 70% 35%)', 'hsl(142 70% 50%)')};
+      }
+
+      .widget.updates-available {
+        color: ${cssManager.bdTheme('hsl(38 92% 45%)', 'hsl(38 92% 55%)')};
+      }
+
+      .widget.error {
+        color: ${cssManager.bdTheme('hsl(0 70% 50%)', 'hsl(0 70% 60%)')};
+      }
+
+      @keyframes spin {
+        from { transform: rotate(0deg); }
+        to { transform: rotate(360deg); }
+      }
+
+      .spinning {
+        animation: spin 1s linear infinite;
+      }
+
+      .spacer {
+        flex: 1;
+      }
+    `,
+  ];
+
+  public render(): TemplateResult {
+    return html`
+      <div class="bottom-bar">
+        <!-- Script Runner Widget -->
+        <div
+          class="widget"
+          @click=${this.handleScriptClick}
+          title="Run script"
+        >
+          <dees-icon
+            .icon=${'lucide:play'}
+            iconSize="12"
+          ></dees-icon>
+          <span>Scripts</span>
+        </div>
+
+        <div class="widget-separator"></div>
+
+        <!-- Package Checker Widget -->
+        <div
+          class="widget ${this.getPackageStatusClass()}"
+          @click=${this.handlePackageClick}
+          title="${this.getPackageTooltip()}"
+        >
+          <dees-icon
+            .icon=${this.getPackageIcon()}
+            iconSize="12"
+            class="${this.isCheckingPackages ? 'spinning' : ''}"
+          ></dees-icon>
+          <span>${this.getPackageStatusText()}</span>
+        </div>
+
+        <div class="spacer"></div>
+
+        <!-- Future widgets can be added here -->
+      </div>
+    `;
+  }
+
+  public async connectedCallback() {
+    await super.connectedCallback();
+    // Listen for process-complete events to refresh after package updates
+    window.addEventListener('process-complete', this.handleProcessComplete as EventListener);
+  }
+
+  public async disconnectedCallback() {
+    await super.disconnectedCallback();
+    window.removeEventListener('process-complete', this.handleProcessComplete as EventListener);
+  }
+
+  async firstUpdated() {
+    await this.loadScripts();
+    await this.checkPackages();
+  }
+
+  async updated(changedProperties: Map<string, any>) {
+    if (changedProperties.has('executionEnvironment') && this.executionEnvironment) {
+      await this.loadScripts();
+      await this.checkPackages();
+    }
+  }
+
+  // ========== Script Runner ==========
+
+  private async loadScripts(): Promise<void> {
+    if (!this.executionEnvironment) return;
+
+    try {
+      const packageJsonExists = await this.executionEnvironment.exists('/package.json');
+      if (!packageJsonExists) {
+        this.scripts = {};
+        return;
+      }
+
+      const content = await this.executionEnvironment.readFile('/package.json');
+      const packageJson = JSON.parse(content);
+      this.scripts = packageJson.scripts || {};
+    } catch (error) {
+      console.warn('Failed to load scripts from package.json:', error);
+      this.scripts = {};
+    }
+  }
+
+  private async handleScriptClick(e: MouseEvent): Promise<void> {
+    e.stopPropagation();
+
+    const scriptNames = Object.keys(this.scripts);
+    if (scriptNames.length === 0) {
+      return;
+    }
+
+    const menuItems = scriptNames.map(name => ({
+      name: name,
+      iconName: 'lucide:terminal' as const,
+      action: async () => {
+        await this.runScript(name);
+      },
+    }));
+
+    await DeesContextmenu.openContextMenuWithOptions(e, menuItems);
+  }
+
+  private async runScript(scriptName: string): Promise<void> {
+    if (!this.executionEnvironment) return;
+
+    // Emit run-process event for the workspace to create a terminal tab
+    const detail: IRunProcessEventDetail = {
+      type: 'script',
+      label: scriptName,
+      command: 'pnpm',
+      args: ['run', scriptName],
+      metadata: { scriptName },
+    };
+
+    this.dispatchEvent(new CustomEvent('run-process', {
+      bubbles: true,
+      composed: true,
+      detail,
+    }));
+  }
+
+  // ========== Package Checker ==========
+
+  private async checkPackages(): Promise<void> {
+    if (!this.executionEnvironment) {
+      this.packageStatus = 'idle';
+      return;
+    }
+
+    try {
+      const packageJsonExists = await this.executionEnvironment.exists('/package.json');
+      if (!packageJsonExists) {
+        this.packageStatus = 'idle';
+        return;
+      }
+
+      this.packageStatus = 'checking';
+      this.isCheckingPackages = true;
+
+      // Run pnpm outdated --json with timeout
+      const process = await this.executionEnvironment.spawn('pnpm', ['outdated', '--json']);
+
+      let output = '';
+
+      // Collect output asynchronously - don't await, stream may not close if no output
+      const outputReader = process.output.getReader();
+      const readOutput = async () => {
+        try {
+          while (true) {
+            const { done, value } = await outputReader.read();
+            if (done) break;
+            output += value;
+          }
+        } catch {
+          // Ignore stream errors
+        }
+      };
+      // Start reading but don't await - we'll use whatever we have when process exits
+      readOutput();
+
+      // Wait for process exit with timeout (10 seconds)
+      const exitCode = await Promise.race([
+        process.exit,
+        new Promise<number>((resolve) => setTimeout(() => resolve(-1), 10000)),
+      ]);
+
+      // Cancel reader when done
+      try {
+        await outputReader.cancel();
+      } catch {
+        // Ignore cancel errors
+      }
+
+      // Handle timeout
+      if (exitCode === -1) {
+        console.warn('Package check timed out');
+        this.packageStatus = 'error';
+        return;
+      }
+
+      // pnpm outdated returns exit code 1 if there are outdated packages
+      if (exitCode === 0) {
+        // No outdated packages
+        this.packageStatus = 'up-to-date';
+        this.outdatedPackages = [];
+      } else {
+        // Parse outdated packages
+        try {
+          const outdatedData = JSON.parse(output);
+          this.outdatedPackages = this.parseOutdatedPackages(outdatedData);
+          this.packageStatus = this.outdatedPackages.length > 0 ? 'updates-available' : 'up-to-date';
+        } catch {
+          // If parsing fails but exit code is 1, assume there are updates
+          this.packageStatus = 'updates-available';
+          this.outdatedPackages = [];
+        }
+      }
+    } catch (error) {
+      console.warn('Failed to check for package updates:', error);
+      this.packageStatus = 'error';
+    } finally {
+      this.isCheckingPackages = false;
+    }
+  }
+
+  private parseOutdatedPackages(data: any): IOutdatedPackage[] {
+    const packages: IOutdatedPackage[] = [];
+
+    // pnpm outdated --json returns an object with package names as keys
+    if (typeof data === 'object' && data !== null) {
+      for (const [name, info] of Object.entries(data)) {
+        const pkgInfo = info as any;
+        packages.push({
+          name,
+          current: pkgInfo.current || 'unknown',
+          wanted: pkgInfo.wanted || pkgInfo.current || 'unknown',
+          latest: pkgInfo.latest || pkgInfo.wanted || 'unknown',
+          type: pkgInfo.dependencyType === 'devDependencies' ? 'devDependencies' : 'dependencies',
+        });
+      }
+    }
+
+    return packages;
+  }
+
+  private async handlePackageClick(e: MouseEvent): Promise<void> {
+    e.stopPropagation();
+
+    const menuItems: Parameters<typeof DeesContextmenu.openContextMenuWithOptions>[1] = [];
+
+    // Refresh option - show output in terminal
+    menuItems.push({
+      name: this.isCheckingPackages ? 'Checking...' : 'Check for updates',
+      iconName: 'lucide:refreshCw',
+      action: async () => {
+        if (this.isCheckingPackages) return;
+
+        // Create terminal tab to show pnpm outdated output
+        const detail: IRunProcessEventDetail = {
+          type: 'package-update',
+          label: 'check packages',
+          command: 'pnpm',
+          args: ['outdated'],
+        };
+
+        this.dispatchEvent(new CustomEvent('run-process', {
+          bubbles: true,
+          composed: true,
+          detail,
+        }));
+
+        // Also refresh the widget status silently after a delay
+        setTimeout(() => this.checkPackages(), 3000);
+      },
+    });
+
+    if (this.outdatedPackages.length > 0) {
+      menuItems.push({ divider: true });
+
+      // Show outdated packages (max 10)
+      const displayPackages = this.outdatedPackages.slice(0, 10);
+      for (const pkg of displayPackages) {
+        menuItems.push({
+          name: `${pkg.name}: ${pkg.current} → ${pkg.latest}`,
+          iconName: 'lucide:package',
+          action: async () => {
+            // Update single package
+            await this.updatePackage(pkg.name);
+          },
+        });
+      }
+
+      if (this.outdatedPackages.length > 10) {
+        menuItems.push({
+          name: `... and ${this.outdatedPackages.length - 10} more`,
+          iconName: 'lucide:moreHorizontal',
+          action: async () => {},
+        });
+      }
+
+      menuItems.push({ divider: true });
+
+      menuItems.push({
+        name: 'Update all packages',
+        iconName: 'lucide:arrowUpCircle',
+        action: async () => {
+          await this.updateAllPackages();
+        },
+      });
+    }
+
+    await DeesContextmenu.openContextMenuWithOptions(e, menuItems);
+  }
+
+  private async updatePackage(packageName: string): Promise<void> {
+    if (!this.executionEnvironment) return;
+
+    // Mark that we have a pending update - will trigger refresh when complete
+    this.pendingPackageUpdate = true;
+
+    // Emit run-process event for the workspace to create a terminal tab
+    const detail: IRunProcessEventDetail = {
+      type: 'package-update',
+      label: `update ${packageName}`,
+      command: 'pnpm',
+      args: ['update', '--latest', packageName],
+      metadata: { packageName },
+    };
+
+    this.dispatchEvent(new CustomEvent('run-process', {
+      bubbles: true,
+      composed: true,
+      detail,
+    }));
+  }
+
+  private async updateAllPackages(): Promise<void> {
+    if (!this.executionEnvironment) return;
+
+    // Mark that we have a pending update - will trigger refresh when complete
+    this.pendingPackageUpdate = true;
+
+    // Emit run-process event for the workspace to create a terminal tab
+    const detail: IRunProcessEventDetail = {
+      type: 'package-update',
+      label: 'update all',
+      command: 'pnpm',
+      args: ['update', '--latest'],
+    };
+
+    this.dispatchEvent(new CustomEvent('run-process', {
+      bubbles: true,
+      composed: true,
+      detail,
+    }));
+  }
+
+  // ========== Helper Methods ==========
+
+  private getPackageStatusClass(): string {
+    if (this.isCheckingPackages) return '';
+    return this.packageStatus;
+  }
+
+  private getPackageIcon(): string {
+    if (this.isCheckingPackages) return 'lucide:loader2';
+
+    switch (this.packageStatus) {
+      case 'up-to-date':
+        return 'lucide:checkCircle';
+      case 'updates-available':
+        return 'lucide:alertCircle';
+      case 'error':
+        return 'lucide:xCircle';
+      default:
+        return 'lucide:package';
+    }
+  }
+
+  private getPackageStatusText(): string {
+    if (this.isCheckingPackages) return 'Checking...';
+
+    switch (this.packageStatus) {
+      case 'up-to-date':
+        return 'Up to date';
+      case 'updates-available':
+        return `${this.outdatedPackages.length} update${this.outdatedPackages.length !== 1 ? 's' : ''}`;
+      case 'error':
+        return 'Check failed';
+      default:
+        return 'Packages';
+    }
+  }
+
+  private getPackageTooltip(): string {
+    if (this.isCheckingPackages) return 'Checking for package updates...';
+
+    switch (this.packageStatus) {
+      case 'up-to-date':
+        return 'All packages are up to date';
+      case 'updates-available':
+        return `${this.outdatedPackages.length} package update${this.outdatedPackages.length !== 1 ? 's' : ''} available`;
+      case 'error':
+        return 'Failed to check for updates. Click to retry.';
+      default:
+        return 'Click to check for package updates';
+    }
+  }
+
+  // ========== Public Methods ==========
+
+  /**
+   * Manually trigger a package check
+   */
+  public async refreshPackageStatus(): Promise<void> {
+    await this.checkPackages();
+  }
+
+  /**
+   * Manually reload scripts from package.json
+   */
+  public async refreshScripts(): Promise<void> {
+    await this.loadScripts();
+  }
+}

ts_web/elements/00group-workspace/dees-workspace-bottombar/index.ts

@@ -0,0 +1 @@
+export * from './dees-workspace-bottombar.js';

ts_web/elements/00group-workspace/dees-workspace-diff-editor/dees-workspace-diff-editor.ts

@@ -0,0 +1,359 @@
+import {
+  DeesElement,
+  property,
+  html,
+  customElement,
+  type TemplateResult,
+  css,
+  cssManager,
+} from '@design.estate/dees-element';
+import * as domtools from '@design.estate/dees-domtools';
+import { MONACO_VERSION } from '../dees-workspace-monaco/version.js';
+import { themeDefaultStyles } from '../../00theme.js';
+import '../../00group-button/dees-button/dees-button.js';
+
+import type * as monaco from 'monaco-editor';
+
+declare global {
+  interface HTMLElementTagNameMap {
+    'dees-workspace-diff-editor': DeesWorkspaceDiffEditor;
+  }
+}
+
+@customElement('dees-workspace-diff-editor')
+export class DeesWorkspaceDiffEditor extends DeesElement {
+  // DEMO
+  public static demo = () => html`
+    <dees-workspace-diff-editor
+      .originalContent=${'function hello() {\n  console.log("Hello");\n}'}
+      .modifiedContent=${'function hello() {\n  console.log("Hello World!");\n  return true;\n}'}
+      .language=${'typescript'}
+      .filePath=${'/demo/example.ts'}
+    ></dees-workspace-diff-editor>
+  `;
+
+  // INSTANCE
+  public diffEditorDeferred = domtools.plugins.smartpromise.defer<monaco.editor.IStandaloneDiffEditor>();
+
+  @property({ type: String })
+  accessor originalContent: string = '';
+
+  @property({ type: String })
+  accessor modifiedContent: string = '';
+
+  @property({ type: String })
+  accessor originalLabel: string = 'Disk Version';
+
+  @property({ type: String })
+  accessor modifiedLabel: string = 'Local Version';
+
+  @property({ type: String })
+  accessor language: string = 'typescript';
+
+  @property({ type: String })
+  accessor filePath: string = '';
+
+  private diffEditor: monaco.editor.IStandaloneDiffEditor | null = null;
+  private monacoThemeSubscription: domtools.plugins.smartrx.rxjs.Subscription | null = null;
+  private originalModel: monaco.editor.ITextModel | null = null;
+  private modifiedModel: monaco.editor.ITextModel | null = null;
+
+  constructor() {
+    super();
+    domtools.DomTools.setupDomTools();
+  }
+
+  public static styles = [
+    themeDefaultStyles,
+    cssManager.defaultStyles,
+    css`
+      :host {
+        display: block;
+        position: absolute;
+        top: 0;
+        left: 0;
+        right: 0;
+        bottom: 0;
+      }
+
+      * {
+        box-sizing: border-box;
+      }
+
+      .diff-wrapper {
+        display: flex;
+        flex-direction: column;
+        height: 100%;
+        width: 100%;
+      }
+
+      .diff-toolbar {
+        height: 48px;
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+        padding: 0 16px;
+        background: ${cssManager.bdTheme('hsl(0 0% 96%)', 'hsl(0 0% 12%)')};
+        border-bottom: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 20%)')};
+        flex-shrink: 0;
+      }
+
+      .diff-info {
+        display: flex;
+        align-items: center;
+        gap: 12px;
+        font-size: 14px;
+        color: ${cssManager.bdTheme('hsl(0 0% 30%)', 'hsl(0 0% 80%)')};
+      }
+
+      .diff-filename {
+        font-weight: 600;
+        color: ${cssManager.bdTheme('hsl(0 0% 20%)', 'hsl(0 0% 90%)')};
+      }
+
+      .diff-labels {
+        font-size: 12px;
+        color: ${cssManager.bdTheme('hsl(0 0% 50%)', 'hsl(0 0% 60%)')};
+      }
+
+      .diff-actions {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+      }
+
+      .diff-container {
+        flex: 1;
+        min-height: 0;
+        width: 100%;
+      }
+
+      .nav-buttons {
+        display: flex;
+        gap: 4px;
+      }
+
+      .action-buttons {
+        display: flex;
+        gap: 8px;
+        margin-left: 16px;
+      }
+    `,
+  ];
+
+  public render(): TemplateResult {
+    const fileName = this.filePath.split('/').pop() || 'file';
+
+    return html`
+      <div class="diff-wrapper">
+        <div class="diff-toolbar">
+          <div class="diff-info">
+            <span class="diff-filename">${fileName}</span>
+            <span class="diff-labels">${this.originalLabel} ↔ ${this.modifiedLabel}</span>
+          </div>
+          <div class="diff-actions">
+            <div class="nav-buttons">
+              <dees-button
+                type="outline"
+                @click=${this.goToPreviousDiff}
+              >Previous</dees-button>
+              <dees-button
+                type="outline"
+                @click=${this.goToNextDiff}
+              >Next</dees-button>
+            </div>
+            <div class="action-buttons">
+              <dees-button
+                type="highlighted"
+                @click=${this.acceptLocal}
+              >Use Local</dees-button>
+              <dees-button
+                type="outline"
+                @click=${this.acceptDisk}
+              >Use Disk</dees-button>
+              <dees-button
+                type="outline"
+                @click=${this.close}
+              >Close</dees-button>
+            </div>
+          </div>
+        </div>
+        <div class="diff-container"></div>
+      </div>
+    `;
+  }
+
+  public async firstUpdated(): Promise<void> {
+    await super.firstUpdated(new Map());
+    await this.initDiffEditor();
+  }
+
+  private async initDiffEditor(): Promise<void> {
+    const container = this.shadowRoot?.querySelector('.diff-container') as HTMLElement;
+    if (!container) return;
+
+    const monacoCdnBase = `https://cdn.jsdelivr.net/npm/monaco-editor@${MONACO_VERSION}`;
+
+    // Wait for Monaco to be loaded (should already be loaded by dees-workspace-monaco)
+    let monacoInstance = (window as any).monaco as typeof monaco;
+
+    if (!monacoInstance) {
+      // Monaco not loaded yet, wait for it
+      await new Promise<void>((resolve) => {
+        const checkMonaco = setInterval(() => {
+          if ((window as any).monaco) {
+            clearInterval(checkMonaco);
+            resolve();
+          }
+        }, 100);
+      });
+      monacoInstance = (window as any).monaco as typeof monaco;
+    }
+
+    // Get current theme from domtools
+    const domtoolsInstance = await this.domtoolsPromise;
+    const isBright = domtoolsInstance.themeManager.goBrightBoolean;
+    const initialTheme = isBright ? 'vs' : 'vs-dark';
+
+    // Create unique URIs for models
+    const timestamp = Date.now();
+    const originalUri = monacoInstance.Uri.parse(`diff://original/${timestamp}${this.filePath}`);
+    const modifiedUri = monacoInstance.Uri.parse(`diff://modified/${timestamp}${this.filePath}`);
+
+    // Create models
+    this.originalModel = monacoInstance.editor.createModel(
+      this.originalContent,
+      this.language,
+      originalUri
+    );
+    this.modifiedModel = monacoInstance.editor.createModel(
+      this.modifiedContent,
+      this.language,
+      modifiedUri
+    );
+
+    // Create diff editor
+    this.diffEditor = monacoInstance.editor.createDiffEditor(container, {
+      automaticLayout: true,
+      readOnly: false, // Allow editing the modified (local) side
+      originalEditable: false, // Disk version is read-only
+      renderSideBySide: true,
+      ignoreTrimWhitespace: false,
+      fontSize: 14,
+      minimap: {
+        enabled: false,
+      },
+    });
+
+    // Set the theme
+    monacoInstance.editor.setTheme(initialTheme);
+
+    this.diffEditor.setModel({
+      original: this.originalModel,
+      modified: this.modifiedModel,
+    });
+
+    // Subscribe to theme changes
+    this.monacoThemeSubscription = domtoolsInstance.themeManager.themeObservable.subscribe(
+      (goBright: boolean) => {
+        const newTheme = goBright ? 'vs' : 'vs-dark';
+        monacoInstance.editor.setTheme(newTheme);
+      }
+    );
+
+    // Inject Monaco CSS if not already present
+    const cssId = 'monaco-diff-editor-css';
+    if (!this.shadowRoot?.getElementById(cssId)) {
+      const cssResponse = await fetch(`${monacoCdnBase}/min/vs/editor/editor.main.css`);
+      const cssText = await cssResponse.text();
+      const styleElement = document.createElement('style');
+      styleElement.id = cssId;
+      styleElement.textContent = cssText;
+      this.shadowRoot?.append(styleElement);
+    }
+
+    // Navigate to first diff after a short delay
+    setTimeout(() => {
+      try {
+        this.diffEditor?.revealFirstDiff();
+      } catch {
+        // Ignore if no diffs
+      }
+    }, 100);
+
+    this.diffEditorDeferred.resolve(this.diffEditor);
+  }
+
+  public goToNextDiff(): void {
+    try {
+      this.diffEditor?.goToDiff('next');
+    } catch {
+      // Ignore if no more diffs
+    }
+  }
+
+  public goToPreviousDiff(): void {
+    try {
+      this.diffEditor?.goToDiff('previous');
+    } catch {
+      // Ignore if no more diffs
+    }
+  }
+
+  public acceptLocal(): void {
+    // User wants to keep local version (potentially with edits made in diff view)
+    const modifiedContent = this.diffEditor?.getModifiedEditor().getValue() || this.modifiedContent;
+    this.dispatchEvent(
+      new CustomEvent('diff-resolved', {
+        detail: { action: 'use-local', content: modifiedContent },
+        bubbles: true,
+        composed: true,
+      })
+    );
+  }
+
+  public acceptDisk(): void {
+    // User wants disk version
+    this.dispatchEvent(
+      new CustomEvent('diff-resolved', {
+        detail: { action: 'use-disk', content: this.originalContent },
+        bubbles: true,
+        composed: true,
+      })
+    );
+  }
+
+  public close(): void {
+    this.dispatchEvent(
+      new CustomEvent('diff-closed', {
+        bubbles: true,
+        composed: true,
+      })
+    );
+  }
+
+  public async disconnectedCallback(): Promise<void> {
+    await super.disconnectedCallback();
+
+    if (this.monacoThemeSubscription) {
+      this.monacoThemeSubscription.unsubscribe();
+      this.monacoThemeSubscription = null;
+    }
+
+    // Dispose models
+    if (this.originalModel) {
+      this.originalModel.dispose();
+      this.originalModel = null;
+    }
+    if (this.modifiedModel) {
+      this.modifiedModel.dispose();
+      this.modifiedModel = null;
+    }
+
+    // Dispose editor
+    if (this.diffEditor) {
+      this.diffEditor.dispose();
+      this.diffEditor = null;
+    }
+  }
+}

ts_web/elements/00group-workspace/dees-workspace-diff-editor/index.ts

@@ -0,0 +1 @@
+export * from './dees-workspace-diff-editor.js';

ts_web/elements/00group-workspace/dees-workspace-markdown/dees-workspace-markdown.ts

@@ -6,7 +6,8 @@ import {
   type TemplateResult,
   css,
   cssManager,
-  domtools
+  domtools,
+  state,
 } from '@design.estate/dees-element';
 import { themeDefaultStyles } from '../../00theme.js';
 import { DeesWorkspaceMonaco } from '../dees-workspace-monaco/dees-workspace-monaco.js';
@@ -27,31 +28,113 @@ export class DeesWorkspaceMarkdown extends DeesElement {
     themeDefaultStyles,
     cssManager.defaultStyles,
     css`
-      /* TODO: Migrate hardcoded values to --dees-* CSS variables */
-      .gridcontainer {
+      :host {
+        display: block;
+        position: relative;
+        width: 100%;
+        height: 100%;
+      }
+
+      .splitContainer {
         position: absolute;
         height: 100%;
         width: 100%;
-        display: grid;
-        grid-template-columns: 60% 40%;
+        display: flex;
+        flex-direction: row;
       }
+
       .editorContainer {
         position: relative;
+        height: 100%;
+        min-width: 100px;
+        overflow: hidden;
       }
+
+      .resizeHandle {
+        width: 6px;
+        height: 100%;
+        background: ${cssManager.bdTheme('#e5e7eb', '#30363d')};
+        cursor: col-resize;
+        flex-shrink: 0;
+        transition: background 0.15s ease;
+        position: relative;
+      }
+
+      .resizeHandle:hover,
+      .resizeHandle.dragging {
+        background: ${cssManager.bdTheme('#3b82f6', '#58a6ff')};
+      }
+
+      .resizeHandle::after {
+        content: '';
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        width: 2px;
+        height: 32px;
+        background: ${cssManager.bdTheme('#9ca3af', '#6e7681')};
+        border-radius: 1px;
+        opacity: 0.6;
+      }
+
+      .resizeHandle:hover::after,
+      .resizeHandle.dragging::after {
+        background: ${cssManager.bdTheme('#ffffff', '#ffffff')};
+        opacity: 1;
+      }
+
       .outletContainer {
-        background: #111;
-        color: #fff;
-        font-family: 'Roboto Slab';
+        position: relative;
+        height: 100%;
+        min-width: 100px;
+        background: ${cssManager.bdTheme('#ffffff', '#0d1117')};
+        color: ${cssManager.bdTheme('#24292f', '#e6edf3')};
+        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
         padding: 20px;
-        overflow-y: scroll;
+        overflow-y: auto;
+        box-sizing: border-box;
+      }
+
+      /* Prevent text selection while dragging */
+      .splitContainer.dragging {
+        user-select: none;
+      }
+
+      .splitContainer.dragging .editorContainer,
+      .splitContainer.dragging .outletContainer {
+        pointer-events: none;
       }
     `,
   ];
 
+  /**
+   * Initial split ratio for the editor (left) panel.
+   * Value from 0 to 100 representing percentage width.
+   * Default is 50 (50/50 split).
+   */
+  @property({ type: Number })
+  accessor splitRatio: number = 50;
+
+  /**
+   * Minimum width percentage for either panel.
+   */
+  @property({ type: Number })
+  accessor minPanelSize: number = 10;
+
+  @state()
+  accessor currentSplitRatio: number = 50;
+
+  @state()
+  accessor isDragging: boolean = false;
+
+  private resizeHandleElement: HTMLElement;
+  private containerElement: HTMLElement;
+
   public render() {
     return html`
-      <div class="gridcontainer">
-        <div class="editorContainer">
+      <div class="splitContainer ${this.isDragging ? 'dragging' : ''}">
+        <div class="editorContainer" style="width: ${this.currentSplitRatio}%">
           <dees-workspace-monaco
             .language=${'markdown'}
             .content=${`# a test content
@@ -78,7 +161,11 @@ const hello = 'yes'
             wordWrap="bounded"
           ></dees-workspace-monaco>
         </div>
-        <div class="outletContainer">
+        <div
+          class="resizeHandle ${this.isDragging ? 'dragging' : ''}"
+          @mousedown=${this.handleMouseDown}
+        ></div>
+        <div class="outletContainer" style="width: ${100 - this.currentSplitRatio}%">
           <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
         </div>
       </div>
@@ -87,9 +174,17 @@ const hello = 'yes'
 
   public async firstUpdated(_changedPropertiesArg) {
     await super.firstUpdated(_changedPropertiesArg);
+
+    // Initialize current ratio from property
+    this.currentSplitRatio = this.splitRatio;
+
+    // Cache elements
+    this.containerElement = this.shadowRoot.querySelector('.splitContainer');
+    this.resizeHandleElement = this.shadowRoot.querySelector('.resizeHandle');
+
     const editor = this.shadowRoot.querySelector('dees-workspace-monaco') as DeesWorkspaceMonaco;
 
-    // lets care about wiring the markdown stuff.
+    // Wire up markdown rendering
     const markdownOutlet = this.shadowRoot.querySelector('dees-workspace-markdownoutlet');
     const smartmarkdownInstance = new domtools.plugins.smartmarkdown.SmartMarkdown();
     const mdParsedResult = await smartmarkdownInstance.getMdParsedResultFromMarkdown('loading...')
@@ -97,6 +192,64 @@ const hello = 'yes'
       await mdParsedResult.updateFromMarkdownString(contentArg)
       const html = mdParsedResult.html;
       markdownOutlet.updateHtmlText(html);
-    })
+    });
+  }
+
+  private handleMouseDown = (e: MouseEvent) => {
+    e.preventDefault();
+    this.isDragging = true;
+
+    document.addEventListener('mousemove', this.handleMouseMove);
+    document.addEventListener('mouseup', this.handleMouseUp);
+  };
+
+  private handleMouseMove = (e: MouseEvent) => {
+    if (!this.isDragging || !this.containerElement) return;
+
+    const containerRect = this.containerElement.getBoundingClientRect();
+    const containerWidth = containerRect.width;
+    const mouseX = e.clientX - containerRect.left;
+
+    // Calculate percentage, accounting for the resize handle width (6px)
+    let newRatio = (mouseX / containerWidth) * 100;
+
+    // Clamp to min/max
+    newRatio = Math.max(this.minPanelSize, Math.min(100 - this.minPanelSize, newRatio));
+
+    this.currentSplitRatio = newRatio;
+  };
+
+  private handleMouseUp = () => {
+    this.isDragging = false;
+    document.removeEventListener('mousemove', this.handleMouseMove);
+    document.removeEventListener('mouseup', this.handleMouseUp);
+
+    // Trigger resize on monaco editor
+    const editor = this.shadowRoot.querySelector('dees-workspace-monaco') as DeesWorkspaceMonaco;
+    if (editor) {
+      // Monaco needs to be notified of size changes
+      window.dispatchEvent(new Event('resize'));
+    }
+  };
+
+  async disconnectedCallback() {
+    await super.disconnectedCallback();
+    // Clean up event listeners
+    document.removeEventListener('mousemove', this.handleMouseMove);
+    document.removeEventListener('mouseup', this.handleMouseUp);
+  }
+
+  /**
+   * Programmatically set the split ratio
+   */
+  public setSplitRatio(ratio: number) {
+    this.currentSplitRatio = Math.max(this.minPanelSize, Math.min(100 - this.minPanelSize, ratio));
+  }
+
+  /**
+   * Reset to initial split ratio
+   */
+  public resetSplitRatio() {
+    this.currentSplitRatio = this.splitRatio;
   }
 }

ts_web/elements/00group-workspace/dees-workspace-markdownoutlet/dees-workspace-markdownoutlet.demo.ts

@@ -0,0 +1,289 @@
+import { html, css } from '@design.estate/dees-element';
+import '@design.estate/dees-wcctools/demotools';
+import '../../dees-panel/dees-panel.js';
+import type { DeesWorkspaceMarkdownoutlet } from './dees-workspace-markdownoutlet.js';
+
+export const demoFunc = () => html`
+  <dees-demowrapper>
+    <style>
+      ${css`
+        .demo-container {
+          display: flex;
+          flex-direction: column;
+          gap: 24px;
+          padding: 24px;
+          max-width: 900px;
+          margin: 0 auto;
+        }
+      `}
+    </style>
+
+    <div class="demo-container">
+      <!-- Demo 1: Headings -->
+      <dees-panel
+        .title=${'Headings'}
+        .subtitle=${'All heading levels from H1 to H6'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <h1>Heading Level 1</h1>
+            <h2>Heading Level 2</h2>
+            <h3>Heading Level 3</h3>
+            <h4>Heading Level 4</h4>
+            <h5>Heading Level 5</h5>
+            <h6>Heading Level 6</h6>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 2: Text Formatting -->
+      <dees-panel
+        .title=${'Text Formatting'}
+        .subtitle=${'Bold, italic, links, code, and keyboard input'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <p>This is a paragraph with <strong>bold text</strong> and <em>italic text</em>.</p>
+            <p>You can also use <strong><em>bold italic</em></strong> for emphasis.</p>
+            <p>Here's a <a href="#">link example</a> and some <code>inline code</code>.</p>
+            <p>Press <kbd>Ctrl</kbd> + <kbd>C</kbd> to copy text.</p>
+            <hr>
+            <p>Above is a horizontal rule separator.</p>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 3: Lists -->
+      <dees-panel
+        .title=${'Lists'}
+        .subtitle=${'Ordered, unordered, and task lists'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <h3>Unordered List</h3>
+            <ul>
+              <li>First item</li>
+              <li>Second item
+                <ul>
+                  <li>Nested item 1</li>
+                  <li>Nested item 2</li>
+                </ul>
+              </li>
+              <li>Third item</li>
+            </ul>
+
+            <h3>Ordered List</h3>
+            <ol>
+              <li>Step one</li>
+              <li>Step two</li>
+              <li>Step three</li>
+            </ol>
+
+            <h3>Task List</h3>
+            <ul>
+              <li class="task-list-item"><input type="checkbox" checked disabled> Completed task</li>
+              <li class="task-list-item"><input type="checkbox" disabled> Pending task</li>
+              <li class="task-list-item"><input type="checkbox" disabled> Another task</li>
+            </ul>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 4: Code Blocks -->
+      <dees-panel
+        .title=${'Code Blocks'}
+        .subtitle=${'Syntax highlighted code examples'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <p>Inline code: <code>const greeting = "Hello, World!";</code></p>
+
+            <h3>TypeScript Example</h3>
+            <pre><code><span class="hljs-keyword">import</span> { html, css } <span class="hljs-keyword">from</span> <span class="hljs-string">'@design.estate/dees-element'</span>;
+
+<span class="hljs-keyword">interface</span> <span class="hljs-title">IUser</span> {
+  <span class="hljs-attr">name</span>: <span class="hljs-built_in">string</span>;
+  <span class="hljs-attr">email</span>: <span class="hljs-built_in">string</span>;
+  <span class="hljs-attr">age</span>?: <span class="hljs-built_in">number</span>;
+}
+
+<span class="hljs-keyword">const</span> <span class="hljs-title">getUser</span> = <span class="hljs-keyword">async</span> (<span class="hljs-attr">id</span>: <span class="hljs-built_in">string</span>): <span class="hljs-built_in">Promise</span>&lt;IUser&gt; =&gt; {
+  <span class="hljs-keyword">const</span> response = <span class="hljs-keyword">await</span> fetch(\`/api/users/\${id}\`);
+  <span class="hljs-keyword">return</span> response.json();
+};</code></pre>
+
+            <h3>JSON Example</h3>
+            <pre><code>{
+  <span class="hljs-attr">"name"</span>: <span class="hljs-string">"dees-catalog"</span>,
+  <span class="hljs-attr">"version"</span>: <span class="hljs-string">"3.0.0"</span>,
+  <span class="hljs-attr">"dependencies"</span>: {
+    <span class="hljs-attr">"@design.estate/dees-element"</span>: <span class="hljs-string">"^2.0.0"</span>
+  }
+}</code></pre>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 5: Tables -->
+      <dees-panel
+        .title=${'Tables'}
+        .subtitle=${'Styled tables with alternating rows'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <table>
+              <thead>
+                <tr>
+                  <th>Feature</th>
+                  <th>Status</th>
+                  <th>Priority</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr>
+                  <td>Dark mode support</td>
+                  <td>Completed</td>
+                  <td>High</td>
+                </tr>
+                <tr>
+                  <td>Responsive design</td>
+                  <td>In Progress</td>
+                  <td>Medium</td>
+                </tr>
+                <tr>
+                  <td>Accessibility</td>
+                  <td>Planned</td>
+                  <td>High</td>
+                </tr>
+                <tr>
+                  <td>Documentation</td>
+                  <td>In Progress</td>
+                  <td>Low</td>
+                </tr>
+              </tbody>
+            </table>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 6: Blockquotes & Alerts -->
+      <dees-panel
+        .title=${'Blockquotes & Alerts'}
+        .subtitle=${'Quotes and GitHub-style alerts'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <blockquote>
+              <p>This is a standard blockquote. It's great for highlighting important information or quotes from other sources.</p>
+            </blockquote>
+
+            <div class="markdown-alert markdown-alert-note">
+              <p><strong>Note:</strong> This is an informational note to draw attention to important details.</p>
+            </div>
+
+            <div class="markdown-alert markdown-alert-tip">
+              <p><strong>Tip:</strong> Here's a helpful tip to improve your workflow.</p>
+            </div>
+
+            <div class="markdown-alert markdown-alert-important">
+              <p><strong>Important:</strong> This information is crucial for understanding the topic.</p>
+            </div>
+
+            <div class="markdown-alert markdown-alert-warning">
+              <p><strong>Warning:</strong> Be careful when performing this action.</p>
+            </div>
+
+            <div class="markdown-alert markdown-alert-caution">
+              <p><strong>Caution:</strong> This action may have unintended consequences.</p>
+            </div>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 7: Full Document -->
+      <dees-panel
+        .title=${'Full Document'}
+        .subtitle=${'A complete markdown document example'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <h1>Getting Started Guide</h1>
+            <p>Welcome to the <strong>dees-catalog</strong> component library. This guide will help you get up and running quickly.</p>
+
+            <h2>Installation</h2>
+            <p>Install the package using your preferred package manager:</p>
+            <pre><code><span class="hljs-comment"># Using pnpm (recommended)</span>
+pnpm add @design.estate/dees-catalog
+
+<span class="hljs-comment"># Using npm</span>
+npm install @design.estate/dees-catalog</code></pre>
+
+            <h2>Basic Usage</h2>
+            <p>Import and use components in your TypeScript files:</p>
+            <pre><code><span class="hljs-keyword">import</span> { DeesButton } <span class="hljs-keyword">from</span> <span class="hljs-string">'@design.estate/dees-catalog'</span>;
+
+<span class="hljs-comment">// Use in your templates</span>
+html\`&lt;dees-button&gt;Click me&lt;/dees-button&gt;\`</code></pre>
+
+            <div class="markdown-alert markdown-alert-tip">
+              <p><strong>Tip:</strong> Check the demo showcase for live examples of all components.</p>
+            </div>
+
+            <h2>Available Components</h2>
+            <table>
+              <thead>
+                <tr>
+                  <th>Component</th>
+                  <th>Description</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr>
+                  <td><code>dees-button</code></td>
+                  <td>Primary button component</td>
+                </tr>
+                <tr>
+                  <td><code>dees-input-text</code></td>
+                  <td>Text input field</td>
+                </tr>
+                <tr>
+                  <td><code>dees-table</code></td>
+                  <td>Data table with sorting</td>
+                </tr>
+                <tr>
+                  <td><code>dees-modal</code></td>
+                  <td>Modal dialog</td>
+                </tr>
+              </tbody>
+            </table>
+
+            <h2>Next Steps</h2>
+            <ul>
+              <li>Explore the <a href="#">component documentation</a></li>
+              <li>Check out the <a href="#">theming guide</a></li>
+              <li>Join our <a href="#">community Discord</a></li>
+            </ul>
+
+            <blockquote>
+              <p>"The best component library is one that gets out of your way." — Design Systems Team</p>
+            </blockquote>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+    </div>
+  </dees-demowrapper>
+`;

ts_web/elements/00group-workspace/dees-workspace-markdownoutlet/dees-workspace-markdownoutlet.ts

@@ -1,4 +1,13 @@
-import { customElement, DeesElement, html, type TemplateResult } from '@design.estate/dees-element';
+import {
+  customElement,
+  DeesElement,
+  html,
+  type TemplateResult,
+  css,
+  cssManager,
+} from '@design.estate/dees-element';
+import { themeDefaultStyles } from '../../00theme.js';
+import { demoFunc } from './dees-workspace-markdownoutlet.demo.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -9,27 +18,382 @@ declare global {
 @customElement('dees-workspace-markdownoutlet')
 export class DeesWorkspaceMarkdownoutlet extends DeesElement {
   // DEMO
-  public static demo = () => html`<dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>`;
+  public static demo = demoFunc;
+
+  public static styles = [
+    themeDefaultStyles,
+    cssManager.defaultStyles,
+    css`
+      :host {
+        display: block;
+        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
+        font-size: 16px;
+        line-height: 1.6;
+        color: ${cssManager.bdTheme('#24292f', '#e6edf3')};
+      }
+
+      .outlet {
+        word-wrap: break-word;
+      }
+
+      /* Headings */
+      h1, h2, h3, h4, h5, h6 {
+        margin-top: 24px;
+        margin-bottom: 16px;
+        font-weight: 600;
+        line-height: 1.25;
+        color: ${cssManager.bdTheme('#1f2328', '#f0f6fc')};
+      }
+
+      h1 {
+        font-size: 2em;
+        padding-bottom: 0.3em;
+        border-bottom: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+      }
+
+      h2 {
+        font-size: 1.5em;
+        padding-bottom: 0.3em;
+        border-bottom: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+      }
+
+      h3 {
+        font-size: 1.25em;
+      }
+
+      h4 {
+        font-size: 1em;
+      }
+
+      h5 {
+        font-size: 0.875em;
+      }
+
+      h6 {
+        font-size: 0.85em;
+        color: ${cssManager.bdTheme('#656d76', '#8b949e')};
+      }
+
+      /* Paragraphs and text */
+      p {
+        margin-top: 0;
+        margin-bottom: 16px;
+      }
+
+      /* Links */
+      a {
+        color: ${cssManager.bdTheme('#0969da', '#58a6ff')};
+        text-decoration: none;
+      }
+
+      a:hover {
+        text-decoration: underline;
+      }
+
+      /* Strong and emphasis */
+      strong {
+        font-weight: 600;
+        color: ${cssManager.bdTheme('#1f2328', '#f0f6fc')};
+      }
+
+      em {
+        font-style: italic;
+      }
+
+      /* Lists */
+      ul, ol {
+        margin-top: 0;
+        margin-bottom: 16px;
+        padding-left: 2em;
+      }
+
+      li {
+        margin-top: 4px;
+      }
+
+      li + li {
+        margin-top: 4px;
+      }
+
+      ul ul, ul ol, ol ul, ol ol {
+        margin-top: 0;
+        margin-bottom: 0;
+      }
+
+      /* Blockquotes */
+      blockquote {
+        margin: 0 0 16px 0;
+        padding: 0 1em;
+        color: ${cssManager.bdTheme('#656d76', '#8b949e')};
+        border-left: 4px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+      }
+
+      blockquote > :first-child {
+        margin-top: 0;
+      }
+
+      blockquote > :last-child {
+        margin-bottom: 0;
+      }
+
+      /* Inline code */
+      code {
+        padding: 0.2em 0.4em;
+        margin: 0;
+        font-size: 85%;
+        font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
+        background-color: ${cssManager.bdTheme('rgba(175, 184, 193, 0.2)', 'rgba(110, 118, 129, 0.4)')};
+        border-radius: 6px;
+        white-space: break-spaces;
+      }
+
+      /* Code blocks */
+      pre {
+        margin-top: 0;
+        margin-bottom: 16px;
+        padding: 16px;
+        overflow: auto;
+        font-size: 85%;
+        line-height: 1.45;
+        font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+        border-radius: 6px;
+        word-wrap: normal;
+      }
+
+      pre code {
+        display: block;
+        padding: 0;
+        margin: 0;
+        overflow: visible;
+        line-height: inherit;
+        word-wrap: normal;
+        background-color: transparent;
+        border: 0;
+        font-size: 100%;
+        white-space: pre;
+      }
+
+      /* Tables */
+      table {
+        width: max-content;
+        max-width: 100%;
+        margin-top: 0;
+        margin-bottom: 16px;
+        border-spacing: 0;
+        border-collapse: collapse;
+        overflow: auto;
+        display: block;
+      }
+
+      table th {
+        font-weight: 600;
+        padding: 6px 13px;
+        border: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+        color: ${cssManager.bdTheme('#1f2328', '#e6edf3')};
+      }
+
+      table td {
+        padding: 6px 13px;
+        border: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        color: ${cssManager.bdTheme('#1f2328', '#e6edf3')};
+      }
+
+      table tr {
+        background-color: ${cssManager.bdTheme('#ffffff', '#0d1117')};
+        border-top: 1px solid ${cssManager.bdTheme('#d1d9e0', '#21262d')};
+      }
+
+      table tr:nth-child(2n) {
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+      }
+
+      /* Horizontal rules */
+      hr {
+        height: 4px;
+        padding: 0;
+        margin: 24px 0;
+        background-color: ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        border: 0;
+        border-radius: 2px;
+      }
+
+      /* Images */
+      img {
+        max-width: 100%;
+        box-sizing: border-box;
+        border-radius: 6px;
+      }
+
+      /* Task lists */
+      .task-list-item {
+        list-style-type: none;
+      }
+
+      .task-list-item input {
+        margin: 0 0.2em 0.25em -1.4em;
+        vertical-align: middle;
+      }
+
+      /* Definition lists */
+      dl {
+        padding: 0;
+      }
+
+      dl dt {
+        padding: 0;
+        margin-top: 16px;
+        font-size: 1em;
+        font-style: italic;
+        font-weight: 600;
+      }
+
+      dl dd {
+        padding: 0 16px;
+        margin-bottom: 16px;
+      }
+
+      /* Keyboard input */
+      kbd {
+        display: inline-block;
+        padding: 3px 5px;
+        font-size: 11px;
+        font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
+        line-height: 10px;
+        color: ${cssManager.bdTheme('#1f2328', '#e6edf3')};
+        vertical-align: middle;
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+        border: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        border-radius: 6px;
+        box-shadow: inset 0 -1px 0 ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+      }
+
+      /* Footnotes */
+      .footnotes {
+        font-size: 12px;
+        color: ${cssManager.bdTheme('#656d76', '#8b949e')};
+        border-top: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        padding-top: 16px;
+        margin-top: 32px;
+      }
+
+      /* Alerts/Admonitions */
+      .markdown-alert {
+        padding: 8px 16px;
+        margin-bottom: 16px;
+        border-left: 4px solid;
+        border-radius: 6px;
+      }
+
+      .markdown-alert-note {
+        border-color: ${cssManager.bdTheme('#0969da', '#58a6ff')};
+        background-color: ${cssManager.bdTheme('rgba(9, 105, 218, 0.1)', 'rgba(56, 139, 253, 0.1)')};
+      }
+
+      .markdown-alert-warning {
+        border-color: ${cssManager.bdTheme('#bf8700', '#d29922')};
+        background-color: ${cssManager.bdTheme('rgba(191, 135, 0, 0.1)', 'rgba(187, 128, 9, 0.1)')};
+      }
+
+      .markdown-alert-important {
+        border-color: ${cssManager.bdTheme('#8250df', '#a371f7')};
+        background-color: ${cssManager.bdTheme('rgba(130, 80, 223, 0.1)', 'rgba(163, 113, 247, 0.1)')};
+      }
+
+      .markdown-alert-caution {
+        border-color: ${cssManager.bdTheme('#cf222e', '#f85149')};
+        background-color: ${cssManager.bdTheme('rgba(207, 34, 46, 0.1)', 'rgba(248, 81, 73, 0.1)')};
+      }
+
+      .markdown-alert-tip {
+        border-color: ${cssManager.bdTheme('#1a7f37', '#3fb950')};
+        background-color: ${cssManager.bdTheme('rgba(26, 127, 55, 0.1)', 'rgba(46, 160, 67, 0.1)')};
+      }
+
+      /* Syntax highlighting for code blocks */
+      .hljs-comment,
+      .hljs-quote {
+        color: ${cssManager.bdTheme('#6a737d', '#8b949e')};
+      }
+
+      .hljs-keyword,
+      .hljs-selector-tag,
+      .hljs-addition {
+        color: ${cssManager.bdTheme('#d73a49', '#ff7b72')};
+      }
+
+      .hljs-number,
+      .hljs-string,
+      .hljs-meta .hljs-meta-string,
+      .hljs-literal,
+      .hljs-doctag,
+      .hljs-regexp {
+        color: ${cssManager.bdTheme('#032f62', '#a5d6ff')};
+      }
+
+      .hljs-title,
+      .hljs-section,
+      .hljs-name,
+      .hljs-selector-id,
+      .hljs-selector-class {
+        color: ${cssManager.bdTheme('#6f42c1', '#d2a8ff')};
+      }
+
+      .hljs-attribute,
+      .hljs-attr,
+      .hljs-variable,
+      .hljs-template-variable,
+      .hljs-class .hljs-title,
+      .hljs-type {
+        color: ${cssManager.bdTheme('#005cc5', '#79c0ff')};
+      }
+
+      .hljs-symbol,
+      .hljs-bullet,
+      .hljs-subst,
+      .hljs-meta,
+      .hljs-meta .hljs-keyword,
+      .hljs-selector-attr,
+      .hljs-selector-pseudo,
+      .hljs-link {
+        color: ${cssManager.bdTheme('#e36209', '#ffa657')};
+      }
+
+      .hljs-built_in,
+      .hljs-deletion {
+        color: ${cssManager.bdTheme('#b31d28', '#ffa198')};
+      }
+
+      .hljs-formula {
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+      }
+
+      .hljs-emphasis {
+        font-style: italic;
+      }
+
+      .hljs-strong {
+        font-weight: bold;
+      }
+    `,
+  ];
 
   // INSTANCE
   private outlet: HTMLElement;
 
   public render(): TemplateResult {
     return html`
-      <div class="outlet markdown-body">
-        <h1>Hi there</h1>
+      <div class="outlet">
+        <h1>Markdown Preview</h1>
+        <p>Content will appear here when markdown is parsed.</p>
       </div>
     `;
   }
 
   public async firstUpdated(_changedProperties: Map<string | number | symbol, unknown>) {
     await super.firstUpdated(_changedProperties);
-    const styleElement = document.createElement('style');
-    const cssText = await (
-      await fetch('https://unpkg.com/github-markdown-css@5.1.0/github-markdown-dark.css')
-    ).text();
-    styleElement.textContent = cssText;
-    this.shadowRoot.append(styleElement);
+    this.outlet = this.shadowRoot.querySelector('.outlet');
   }
 
   public async updateHtmlText(htmlTextArg: string) {

ts_web/elements/00group-workspace/dees-workspace-monaco/dees-workspace-monaco.ts

@@ -242,4 +242,53 @@ export class DeesWorkspaceMonaco extends DeesElement {
       this.monacoThemeSubscription = null;
     }
   }
+
+  /**
+   * Update content from external source with optional cursor preservation.
+   * Use this when the file content changes externally (e.g., file changed on disk).
+   * @param newContent The new content to set
+   * @param preserveCursor Whether to preserve cursor/scroll position (default: true)
+   */
+  public async setContentExternal(
+    newContent: string,
+    preserveCursor: boolean = true
+  ): Promise<void> {
+    const editor = await this.editorDeferred.promise;
+    const currentValue = editor.getValue();
+
+    if (currentValue === newContent) return;
+
+    // Save cursor state if preserving
+    const position = preserveCursor ? editor.getPosition() : null;
+    const selections = preserveCursor ? editor.getSelections() : null;
+    const scrollTop = preserveCursor ? editor.getScrollTop() : 0;
+    const scrollLeft = preserveCursor ? editor.getScrollLeft() : 0;
+
+    // Update content
+    this.isUpdatingFromExternal = true;
+    editor.setValue(newContent);
+    this.isUpdatingFromExternal = false;
+
+    // Restore cursor state if preserving
+    if (preserveCursor) {
+      if (position) {
+        // Clamp position to valid range
+        const model = editor.getModel();
+        const lineCount = model?.getLineCount() || 1;
+        const clampedLine = Math.min(position.lineNumber, lineCount);
+        const lineLength = model?.getLineMaxColumn(clampedLine) || 1;
+        const clampedColumn = Math.min(position.column, lineLength);
+        editor.setPosition({ lineNumber: clampedLine, column: clampedColumn });
+      }
+      if (selections && selections.length > 0) {
+        // Selections may be invalid after content change, wrap in try-catch
+        try {
+          editor.setSelections(selections);
+        } catch {
+          // Ignore invalid selections
+        }
+      }
+      editor.setScrollPosition({ scrollTop, scrollLeft });
+    }
+  }
 }

ts_web/elements/00group-workspace/dees-workspace-terminal-preview/dees-workspace-terminal-preview.ts

@@ -7,9 +7,10 @@ import {
   css,
   cssManager,
 } from '@design.estate/dees-element';
-import { Terminal } from 'xterm';
-import { FitAddon } from 'xterm-addon-fit';
+import type { Terminal } from 'xterm';
+import type { FitAddon } from 'xterm-addon-fit';
 import { themeDefaultStyles } from '../../00theme.js';
+import { DeesServiceLibLoader } from '../../../services/index.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -55,6 +56,7 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
   private fitAddon: FitAddon | null = null;
   private lastLineCount: number = 0;
   private resizeObserver: ResizeObserver | null = null;
+  private terminalThemeSubscription: any = null;
 
   public static styles = [
     themeDefaultStyles,
@@ -69,8 +71,8 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
         height: 100%;
         border-radius: 8px;
         overflow: hidden;
-        background: #000000;
-        border: 1px solid hsl(0 0% 20%);
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
+        border: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 20%)')};
         display: flex;
         flex-direction: column;
       }
@@ -80,20 +82,20 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
         align-items: center;
         gap: 8px;
         padding: 8px 12px;
-        background: hsl(0 0% 10%);
+        background: ${cssManager.bdTheme('hsl(0 0% 96%)', 'hsl(0 0% 10%)')};
         font-size: 12px;
         font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
-        color: hsl(0 0% 60%);
-        border-bottom: 1px solid hsl(0 0% 20%);
+        color: ${cssManager.bdTheme('hsl(0 0% 40%)', 'hsl(0 0% 60%)')};
+        border-bottom: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 20%)')};
         flex-shrink: 0;
       }
 
       .terminal-header-icon {
-        color: hsl(0 0% 50%);
+        color: ${cssManager.bdTheme('hsl(0 0% 50%)', 'hsl(0 0% 50%)')};
       }
 
       .terminal-header-command {
-        color: hsl(0 0% 80%);
+        color: ${cssManager.bdTheme('hsl(0 0% 20%)', 'hsl(0 0% 80%)')};
         font-weight: 500;
       }
 
@@ -148,8 +150,8 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       }
 
       .xterm .composition-view {
-        background: #000000;
-        color: #fff;
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
+        color: ${cssManager.bdTheme('#333333', '#ffffff')};
         display: none;
         position: absolute;
         white-space: nowrap;
@@ -161,7 +163,7 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       }
 
       .xterm .xterm-viewport {
-        background-color: #000000;
+        background-color: ${cssManager.bdTheme('#ffffff', '#000000')};
         overflow-y: scroll;
         cursor: default;
         position: absolute;
@@ -243,16 +245,16 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       }
 
       .xterm .xterm-viewport::-webkit-scrollbar-track {
-        background: hsl(0 0% 8%);
+        background: ${cssManager.bdTheme('hsl(0 0% 96%)', 'hsl(0 0% 8%)')};
       }
 
       .xterm .xterm-viewport::-webkit-scrollbar-thumb {
-        background: hsl(0 0% 25%);
+        background: ${cssManager.bdTheme('hsl(0 0% 80%)', 'hsl(0 0% 25%)')};
         border-radius: 4px;
       }
 
       .xterm .xterm-viewport::-webkit-scrollbar-thumb:hover {
-        background: hsl(0 0% 35%);
+        background: ${cssManager.bdTheme('hsl(0 0% 70%)', 'hsl(0 0% 35%)')};
       }
     `,
   ];
@@ -271,6 +273,27 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
     `;
   }
 
+  /**
+   * Get terminal theme colors based on bright/dark mode
+   */
+  private getTerminalTheme(isBright: boolean) {
+    return isBright
+      ? {
+          background: '#ffffff',
+          foreground: '#333333',
+          cursor: '#333333',
+          cursorAccent: '#ffffff',
+          selectionBackground: 'rgba(0, 0, 0, 0.2)',
+        }
+      : {
+          background: '#000000',
+          foreground: '#cccccc',
+          cursor: '#cccccc',
+          cursorAccent: '#000000',
+          selectionBackground: 'rgba(255, 255, 255, 0.2)',
+        };
+  }
+
   public async firstUpdated(
     _changedProperties: Map<string | number | symbol, unknown>
   ): Promise<void> {
@@ -279,21 +302,36 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
     const container = this.shadowRoot?.getElementById('xterm-container');
     if (!container) return;
 
-    // Create xterm terminal in read-only mode
-    this.terminal = new Terminal({
+    // Get current theme from domtools
+    const domtoolsInstance = await this.domtoolsPromise;
+    const isBright = domtoolsInstance.themeManager.goBrightBoolean;
+
+    // Load xterm from CDN
+    const libLoader = DeesServiceLibLoader.getInstance();
+    const [xtermBundle, fitAddonBundle] = await Promise.all([
+      libLoader.loadXterm(),
+      libLoader.loadXtermFitAddon(),
+    ]);
+
+    // Create xterm terminal in read-only mode using CDN-loaded module
+    this.terminal = new xtermBundle.Terminal({
       convertEol: true,
       cursorBlink: false,
       disableStdin: true,
       fontSize: 12,
       fontFamily: "'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace",
-      theme: {
-        background: '#000000',
-        foreground: '#cccccc',
-      },
+      theme: this.getTerminalTheme(isBright),
       scrollback: 1000,
     });
 
-    this.fitAddon = new FitAddon();
+    // Subscribe to theme changes
+    this.terminalThemeSubscription = domtoolsInstance.themeManager.themeObservable.subscribe((goBright: boolean) => {
+      if (this.terminal) {
+        this.terminal.options.theme = this.getTerminalTheme(goBright);
+      }
+    });
+
+    this.fitAddon = new fitAddonBundle.FitAddon();
     this.terminal.loadAddon(this.fitAddon);
     this.terminal.open(container);
     this.fitAddon.fit();
@@ -334,6 +372,10 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       this.resizeObserver.disconnect();
       this.resizeObserver = null;
     }
+    if (this.terminalThemeSubscription) {
+      this.terminalThemeSubscription.unsubscribe();
+      this.terminalThemeSubscription = null;
+    }
     if (this.terminal) {
       this.terminal.dispose();
       this.terminal = null;

ts_web/elements/00group-workspace/dees-workspace-terminal/dees-workspace-terminal.ts

@@ -6,14 +6,24 @@ import {
   type TemplateResult,
   css,
   cssManager,
+  state,
 } from '@design.estate/dees-element';
 import * as domtools from '@design.estate/dees-domtools';
 
-import { Terminal } from 'xterm';
-import { FitAddon } from 'xterm-addon-fit';
+import type { Terminal } from 'xterm';
 import { themeDefaultStyles } from '../../00theme.js';
 import type { IExecutionEnvironment } from '../../00group-runtime/index.js';
 import { WebContainerEnvironment } from '../../00group-runtime/index.js';
+import '../../dees-icon/dees-icon.js';
+import '../../dees-actionbar/dees-actionbar.js';
+import type { DeesActionbar } from '../../dees-actionbar/dees-actionbar.js';
+import { TerminalTabManager } from './terminal-tab-manager.js';
+import type {
+  ITerminalTab,
+  ICreateTerminalTabOptions,
+  TTerminalTabType,
+} from './interfaces.js';
+import { DeesServiceLibLoader } from '../../../services/index.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -30,6 +40,7 @@ export class DeesWorkspaceTerminal extends DeesElement {
 
   // INSTANCE
   private resizeObserver: ResizeObserver;
+  private tabManager: TerminalTabManager;
 
   /**
    * The execution environment (required).
@@ -39,7 +50,7 @@ export class DeesWorkspaceTerminal extends DeesElement {
   accessor executionEnvironment: IExecutionEnvironment | null = null;
 
   @property()
-  accessor setupCommand = `pnpm install @serve.zone/cli && servezone cli\n`;
+  accessor setupCommand = '';
 
   /**
    * Environment variables to set in the shell
@@ -47,8 +58,31 @@ export class DeesWorkspaceTerminal extends DeesElement {
   @property()
   accessor environmentVariables: { [key: string]: string } = {};
 
-  @property()
-  accessor background: string = '#000000';
+  /**
+   * Width of the tab bar in pixels
+   */
+  @property({ type: Number })
+  accessor tabBarWidth: number = 160;
+
+  /**
+   * Whether to show the tab bar
+   */
+  @property({ type: Boolean })
+  accessor showTabBar: boolean = true;
+
+  // Tab state
+  @state()
+  accessor tabs: ITerminalTab[] = [];
+
+  @state()
+  accessor activeTabId: string | null = null;
+
+  // Theme subscription for dynamic theme updates
+  private terminalThemeSubscription: any = null;
+  private isBright: boolean = false;
+
+  // Actionbar reference for terminal-context notifications
+  private terminalActionbar: DeesActionbar | null = null;
 
   /**
    * Promise that resolves when the environment is ready.
@@ -59,12 +93,9 @@ export class DeesWorkspaceTerminal extends DeesElement {
 
   constructor() {
     super();
-    this.resizeObserver = new ResizeObserver((entries) => {
-      for (const entry of entries) {
-        // Handle the resize event
-        console.log(`Terminal Resized`);
-        this.handleResize();
-      }
+    this.tabManager = new TerminalTabManager();
+    this.resizeObserver = new ResizeObserver(() => {
+      this.handleResize();
     });
   }
 
@@ -72,61 +103,196 @@ export class DeesWorkspaceTerminal extends DeesElement {
     themeDefaultStyles,
     cssManager.defaultStyles,
     css`
-      /* TODO: Migrate hardcoded values to --dees-* CSS variables */
       :host {
-        padding: 20px;
-        background: var(--dees-terminal-background, #000000);
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
         position: absolute;
         height: 100%;
         width: 100%;
+        display: flex;
+        flex-direction: row;
       }
 
       * {
         box-sizing: border-box;
       }
 
-      #container {
-        position: absolute;
-        height: calc(100% - 40px);
-        width: calc(100% - 40px);
+      .terminal-container {
+        display: flex;
+        flex-direction: row;
+        width: 100%;
+        height: 100%;
       }
-      /**
-      * Copyright (c) 2014 The xterm.js authors. All rights reserved.
-      * Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
-      * https://github.com/chjj/term.js
-      * @license MIT
-      *
-      * Permission is hereby granted, free of charge, to any person obtaining a copy
-      * of this software and associated documentation files (the "Software"), to deal
-      * in the Software without restriction, including without limitation the rights
-      * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-      * copies of the Software, and to permit persons to whom the Software is
-      * furnished to do so, subject to the following conditions:
-      *
-      * The above copyright notice and this permission notice shall be included in
-      * all copies or substantial portions of the Software.
-      *
-      * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-      * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-      * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-      * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-      * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-      * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-      * THE SOFTWARE.
-      *
-      * Originally forked from (with the author's permission):
-      *   Fabrice Bellard's javascript vt100 for jslinux:
-      *   http://bellard.org/jslinux/
-      *   Copyright (c) 2011 Fabrice Bellard
-      *   The original design remains. The terminal itself
-      *   has been extended to include xterm CSI codes, among
-      *   other features.
-      */
 
-      /**
-      *  Default styles for xterm.js
-      */
+      .terminal-content {
+        flex: 1;
+        display: flex;
+        flex-direction: column;
+        overflow: hidden;
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
+      }
 
+      #active-terminal-container {
+        flex: 1;
+        position: relative;
+        min-height: 0;
+        margin: 20px;
+      }
+
+      .terminal-content dees-actionbar {
+        flex-shrink: 0;
+      }
+
+      /* Tab bar on the right side */
+      .tab-bar {
+        display: flex;
+        flex-direction: column;
+        background: ${cssManager.bdTheme('hsl(0 0% 96%)', 'hsl(0 0% 7%)')};
+        border-left: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 15%)')};
+        flex-shrink: 0;
+        overflow: hidden;
+      }
+
+      .tab-bar-header {
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+        padding: 8px 10px;
+        border-bottom: 1px solid ${cssManager.bdTheme('hsl(0 0% 88%)', 'hsl(0 0% 12%)')};
+        font-size: 11px;
+        font-weight: 600;
+        text-transform: uppercase;
+        letter-spacing: 0.5px;
+        color: ${cssManager.bdTheme('hsl(0 0% 45%)', 'hsl(0 0% 55%)')};
+      }
+
+      .tab-bar-title {
+        white-space: nowrap;
+        overflow: hidden;
+        text-overflow: ellipsis;
+      }
+
+      .tab-bar-actions {
+        display: flex;
+        gap: 2px;
+      }
+
+      .tab-action {
+        width: 22px;
+        height: 22px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        border-radius: 4px;
+        cursor: pointer;
+        color: ${cssManager.bdTheme('hsl(0 0% 50%)', 'hsl(0 0% 60%)')};
+        transition: all 0.15s ease;
+      }
+
+      .tab-action:hover {
+        background: ${cssManager.bdTheme('hsl(0 0% 88%)', 'hsl(0 0% 15%)')};
+        color: ${cssManager.bdTheme('hsl(0 0% 30%)', 'hsl(0 0% 80%)')};
+      }
+
+      .tab-list {
+        flex: 1;
+        overflow-y: auto;
+        padding: 4px;
+      }
+
+      .terminal-tab {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        padding: 8px 10px;
+        margin-bottom: 2px;
+        border-radius: 6px;
+        cursor: pointer;
+        font-size: 12px;
+        color: ${cssManager.bdTheme('hsl(0 0% 45%)', 'hsl(0 0% 60%)')};
+        transition: all 0.15s ease;
+      }
+
+      .terminal-tab:hover {
+        background: ${cssManager.bdTheme('hsl(0 0% 90%)', 'hsl(0 0% 12%)')};
+        color: ${cssManager.bdTheme('hsl(0 0% 25%)', 'hsl(0 0% 80%)')};
+      }
+
+      .terminal-tab.active {
+        background: ${cssManager.bdTheme('hsl(210 100% 95%)', 'hsl(210 30% 15%)')};
+        color: ${cssManager.bdTheme('hsl(210 100% 40%)', 'hsl(210 100% 70%)')};
+      }
+
+      .terminal-tab.exited {
+        opacity: 0.7;
+      }
+
+      .tab-icon {
+        flex-shrink: 0;
+      }
+
+      .tab-icon.running {
+        color: ${cssManager.bdTheme('hsl(142 70% 40%)', 'hsl(142 70% 55%)')};
+      }
+
+      .tab-label {
+        flex: 1;
+        overflow: hidden;
+        text-overflow: ellipsis;
+        white-space: nowrap;
+      }
+
+      .exit-badge {
+        font-size: 10px;
+        padding: 1px 5px;
+        border-radius: 8px;
+        font-weight: 600;
+        flex-shrink: 0;
+      }
+
+      .exit-badge.success {
+        background: ${cssManager.bdTheme('hsl(142 70% 90%)', 'hsl(142 30% 20%)')};
+        color: ${cssManager.bdTheme('hsl(142 70% 35%)', 'hsl(142 70% 60%)')};
+      }
+
+      .exit-badge.error {
+        background: ${cssManager.bdTheme('hsl(0 70% 93%)', 'hsl(0 30% 20%)')};
+        color: ${cssManager.bdTheme('hsl(0 70% 45%)', 'hsl(0 70% 60%)')};
+      }
+
+      .tab-close {
+        width: 18px;
+        height: 18px;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        border-radius: 4px;
+        opacity: 0;
+        transition: all 0.15s ease;
+        flex-shrink: 0;
+      }
+
+      .terminal-tab:hover .tab-close {
+        opacity: 0.6;
+      }
+
+      .tab-close:hover {
+        opacity: 1 !important;
+        background: ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 25%)')};
+        color: ${cssManager.bdTheme('hsl(0 70% 50%)', 'hsl(0 70% 60%)')};
+      }
+
+      .empty-state {
+        display: flex;
+        flex-direction: column;
+        align-items: center;
+        justify-content: center;
+        height: 100%;
+        color: ${cssManager.bdTheme('hsl(0 0% 50%)', 'hsl(0 0% 50%)')};
+        font-size: 13px;
+        gap: 8px;
+      }
+
+      /* xterm.js styles */
       .xterm {
         font-feature-settings: 'liga' 0;
         position: relative;
@@ -143,10 +309,6 @@ export class DeesWorkspaceTerminal extends DeesElement {
       .xterm .xterm-helpers {
         position: absolute;
         top: 0;
-        /**
-          * The z-index of the helpers must be higher than the canvases in order for
-          * IMEs to appear on top.
-          */
         z-index: 5;
       }
 
@@ -154,7 +316,6 @@ export class DeesWorkspaceTerminal extends DeesElement {
         padding: 0;
         border: 0;
         margin: 0;
-        /* Move textarea out of the screen to the far left, so that the cursor is not visible */
         position: absolute;
         opacity: 0;
         left: -9999em;
@@ -162,16 +323,14 @@ export class DeesWorkspaceTerminal extends DeesElement {
         width: 0;
         height: 0;
         z-index: -5;
-        /** Prevent wrapping so the IME appears against the textarea at the correct position */
         white-space: nowrap;
         overflow: hidden;
         resize: none;
       }
 
       .xterm .composition-view {
-        /* TODO: Composition position got messed up somewhere */
-        background: var(--dees-terminal-background, #000000);
-        color: #fff;
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
+        color: ${cssManager.bdTheme('#333333', '#ffffff')};
         display: none;
         position: absolute;
         white-space: nowrap;
@@ -183,8 +342,7 @@ export class DeesWorkspaceTerminal extends DeesElement {
       }
 
       .xterm .xterm-viewport {
-        /* On OS X this is required in order for the scroll bar to appear fully opaque */
-        background-color: var(--dees-terminal-background, #000000);
+        background-color: ${cssManager.bdTheme('#ffffff', '#000000')};
         overflow-y: scroll;
         cursor: default;
         position: absolute;
@@ -222,7 +380,6 @@ export class DeesWorkspaceTerminal extends DeesElement {
       }
 
       .xterm.enable-mouse-events {
-        /* When mouse events are enabled (eg. tmux), revert to the standard pointer cursor */
         cursor: default;
       }
 
@@ -231,7 +388,6 @@ export class DeesWorkspaceTerminal extends DeesElement {
       }
 
       .xterm.column-select.focus {
-        /* Column selection mode */
         cursor: crosshair;
       }
 
@@ -265,131 +421,474 @@ export class DeesWorkspaceTerminal extends DeesElement {
   ];
 
   public render(): TemplateResult {
+    const activeTab = this.activeTabId ? this.tabManager.getTab(this.activeTabId) : null;
+
     return html`
-      <div class="mainbox">
-        <div id="container"></div>
+      <div class="terminal-container">
+        <!-- Main terminal area -->
+        <div class="terminal-content">
+          ${activeTab ? html`
+            <div id="active-terminal-container"></div>
+          ` : html`
+            <div class="empty-state">
+              <dees-icon .icon=${'lucide:terminal'} iconSize="32"></dees-icon>
+              <span>No terminal open</span>
+            </div>
+          `}
+          <dees-actionbar></dees-actionbar>
+        </div>
+
+        <!-- Vertical tab bar on the right -->
+        ${this.showTabBar ? html`
+          <div class="tab-bar" style="width: ${this.tabBarWidth}px">
+            <div class="tab-bar-header">
+              <span class="tab-bar-title">Terminals</span>
+              <div class="tab-bar-actions">
+                <div class="tab-action" @click=${this.handleAddTab} title="New Terminal">
+                  <dees-icon .icon=${'lucide:plus'} iconSize="14"></dees-icon>
+                </div>
+              </div>
+            </div>
+
+            <div class="tab-list">
+              ${this.tabs.map(tab => html`
+                <div
+                  class="terminal-tab ${tab.id === this.activeTabId ? 'active' : ''} ${tab.exited ? 'exited' : ''}"
+                  @click=${() => this.switchToTab(tab.id)}
+                >
+                  <dees-icon
+                    .icon=${tab.iconName}
+                    iconSize="14"
+                    class="tab-icon ${tab.process && !tab.exited ? 'running' : ''}"
+                  ></dees-icon>
+                  <span class="tab-label">${tab.label}</span>
+                  ${tab.exited ? html`
+                    <span class="exit-badge ${tab.exitCode === 0 ? 'success' : 'error'}">
+                      ${tab.exitCode}
+                    </span>
+                  ` : ''}
+                  ${tab.closeable ? html`
+                    <span class="tab-close" @click=${(e: Event) => this.handleTabClose(e, tab.id)}>
+                      <dees-icon .icon=${'lucide:x'} iconSize="12"></dees-icon>
+                    </span>
+                  ` : ''}
+                </div>
+              `)}
+            </div>
+          </div>
+        ` : ''}
       </div>
     `;
   }
 
-  private fitAddon: FitAddon;
-  private terminal: Terminal | null = null;
+  public async firstUpdated(): Promise<void> {
+    const domtoolsInstance = await this.domtoolsPromise;
 
-  public async firstUpdated(
-    _changedProperties: Map<string | number | symbol, unknown>
-  ): Promise<void> {
-    const domtools = await this.domtoolsPromise;
-    super.firstUpdated(_changedProperties);
+    // Get current theme
+    this.isBright = domtoolsInstance.themeManager.goBrightBoolean;
 
-    // Sync CSS variable with background property
-    this.style.setProperty('--dees-terminal-background', this.background);
-
-    const container = this.shadowRoot.getElementById('container');
-
-    const term = new Terminal({
-      convertEol: true,
-      cursorBlink: true,
-      theme: {
-        background: this.background,
-      },
-    });
-    this.terminal = term;
-    this.fitAddon = new FitAddon();
-    term.loadAddon(this.fitAddon);
-
-    // Open the terminal in #terminal-container
-    term.open(container);
-
-    // Make the terminal's size and geometry fit the size of #terminal-container
-    this.fitAddon.fit();
-
-    // Check if execution environment is provided
-    if (!this.executionEnvironment) {
-      term.write('\x1b[31m');  // Red color
-      term.write('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\r\n');
-      term.write('  ❌ No execution environment provided.\r\n');
-      term.write('\r\n');
-      term.write('  Pass an IExecutionEnvironment via the\r\n');
-      term.write('  \'executionEnvironment\' property.\r\n');
-      term.write('\r\n');
-      term.write('  Example:\r\n');
-      term.write('    const env = new WebContainerEnvironment();\r\n');
-      term.write('    <dees-terminal .executionEnvironment=${env}>\r\n');
-      term.write('━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\r\n');
-      term.write('\x1b[0m');  // Reset color
-      return;
-    }
-
-    term.write('Initializing execution environment...\r\n');
-
-    // Initialize the execution environment
-    try {
-      await this.executionEnvironment.init();
-      term.write('Environment ready. Starting shell...\r\n');
-    } catch (error) {
-      term.write('\x1b[31m');  // Red color
-      term.write(`\r\n❌ Failed to initialize environment: ${error}\r\n`);
-      term.write('\x1b[0m');  // Reset color
-      console.error('Failed to initialize execution environment:', error);
-      return;
-    }
-
-    // Spawn shell process
-    let shellProcess;
-    try {
-      shellProcess = await this.executionEnvironment.spawn('jsh');
-    } catch (error) {
-      term.write('\x1b[31m');  // Red color
-      term.write(`\r\n❌ Failed to spawn shell: ${error}\r\n`);
-      term.write('\x1b[0m');  // Reset color
-      console.error('Failed to spawn shell:', error);
-      return;
-    }
-    shellProcess.output.pipeTo(
-      new WritableStream({
-        write(data) {
-          term.write(data);
-        },
-      })
+    // Subscribe to theme changes
+    this.terminalThemeSubscription = domtoolsInstance.themeManager.themeObservable.subscribe(
+      (goBright: boolean) => {
+        this.isBright = goBright;
+        this.tabManager.updateAllThemes(goBright);
+      }
     );
-    const input = shellProcess.input.getWriter();
-    term.onData((data) => {
-      input.write(data);
-    });
 
-    await this.waitForPrompt(term, '~/');
+    // Load xterm from CDN
+    const libLoader = DeesServiceLibLoader.getInstance();
+    const [xtermBundle, fitAddonBundle] = await Promise.all([
+      libLoader.loadXterm(),
+      libLoader.loadXtermFitAddon(),
+    ]);
 
-    // Set environment variables if provided
-    if (Object.keys(this.environmentVariables).length > 0) {
-      await this.setEnvironmentVariables(this.environmentVariables);
-      input.write(`source source.env\n`);
-      await this.waitForPrompt(term, '~/');
-    }
+    // Initialize tab manager with loaded modules
+    this.tabManager.setXtermModules(xtermBundle, fitAddonBundle);
 
-    // Run setup command if provided
-    if (this.setupCommand) {
-      input.write(this.setupCommand);
-      await this.waitForPrompt(term, '~/');
-    }
-
-    input.write(`clear && echo 'Terminal ready.'\n`);
-    this.environmentDeferred.resolve(this.executionEnvironment);
+    // Create default shell tab
+    await this.createShellTab();
   }
 
   async connectedCallback(): Promise<void> {
     await super.connectedCallback();
-    this.resizeObserver.observe(this);
+    // ResizeObserver is set up in attachTerminalToContainer when the container exists
   }
 
   async disconnectedCallback(): Promise<void> {
-    this.resizeObserver.unobserve(this);
+    // Unobserve the terminal container
+    const container = this.shadowRoot?.getElementById('active-terminal-container');
+    if (container) {
+      this.resizeObserver.unobserve(container);
+    }
+    if (this.terminalThemeSubscription) {
+      this.terminalThemeSubscription.unsubscribe();
+      this.terminalThemeSubscription = null;
+    }
+    this.tabManager.disposeAll();
     await super.disconnectedCallback();
   }
 
-  handleResize() {
-    this.fitAddon.fit();
+  // ========== Tab Management ==========
+
+  private async handleAddTab(): Promise<void> {
+    await this.createShellTab();
   }
 
+  private handleTabClose(e: Event, tabId: string): void {
+    e.stopPropagation();
+    this.closeTab(tabId);
+  }
+
+  private switchToTab(tabId: string): void {
+    if (tabId === this.activeTabId) return;
+
+    const tab = this.tabManager.getTab(tabId);
+    if (!tab) return;
+
+    const previousTabId = this.activeTabId;
+
+    // Detach current terminal from DOM
+    if (this.activeTabId) {
+      this.detachActiveTerminal();
+    }
+
+    // Update active tab
+    this.activeTabId = tabId;
+    this.tabs = this.tabManager.getAllTabs();
+
+    // Wait for render then attach new terminal
+    this.updateComplete.then(() => {
+      this.attachTerminalToContainer(tab);
+
+      // Dispatch event
+      this.dispatchEvent(
+        new CustomEvent('tab-switched', {
+          bubbles: true,
+          composed: true,
+          detail: { tabId, previousTabId },
+        })
+      );
+    });
+  }
+
+  private detachActiveTerminal(): void {
+    const container = this.shadowRoot?.getElementById('active-terminal-container');
+    if (container) {
+      container.innerHTML = '';
+    }
+  }
+
+  private attachTerminalToContainer(tab: ITerminalTab): void {
+    const container = this.shadowRoot?.getElementById('active-terminal-container');
+    if (!container) return;
+
+    // Observe container for resize (handles actionbar appearing/disappearing)
+    // ResizeObserver.observe() is idempotent - safe to call multiple times
+    this.resizeObserver.observe(container);
+
+    // Clear container
+    container.innerHTML = '';
+
+    // Open terminal in container
+    tab.terminal.open(container);
+    tab.fitAddon.fit();
+    tab.terminal.focus();
+  }
+
+  private handleResize(): void {
+    if (this.activeTabId) {
+      const tab = this.tabManager.getTab(this.activeTabId);
+      if (tab) {
+        tab.fitAddon.fit();
+      }
+    }
+  }
+
+  // ========== Process Management ==========
+
+  private async spawnProcessForTab(
+    tab: ITerminalTab,
+    command: string,
+    args: string[] = []
+  ): Promise<void> {
+    if (!this.executionEnvironment) {
+      tab.terminal.write('\x1b[31m');
+      tab.terminal.write('❌ No execution environment available.\r\n');
+      tab.terminal.write('\x1b[0m');
+      return;
+    }
+
+    try {
+      // Initialize environment if needed
+      if (!this.executionEnvironment.ready) {
+        tab.terminal.write('Initializing environment...\r\n');
+        await this.executionEnvironment.init();
+      }
+
+      // Spawn process
+      const process = await this.executionEnvironment.spawn(command, args);
+
+      // Set up output piping
+      process.output.pipeTo(
+        new WritableStream({
+          write: (data) => {
+            tab.terminal.write(data);
+          },
+        })
+      );
+
+      // Set up input for interactive processes
+      const inputWriter = process.input.getWriter();
+      tab.terminal.onData((data) => {
+        inputWriter.write(data);
+      });
+
+      // Store process reference
+      this.tabManager.setTabProcess(tab.id, process, inputWriter);
+      this.tabs = this.tabManager.getAllTabs();
+
+      // Handle process exit
+      process.exit.then((exitCode) => {
+        this.handleProcessExit(tab.id, exitCode);
+      });
+    } catch (error) {
+      tab.terminal.write('\x1b[31m');
+      tab.terminal.write(`❌ Failed to spawn process: ${error}\r\n`);
+      tab.terminal.write('\x1b[0m');
+      console.error('Failed to spawn process:', error);
+    }
+  }
+
+  private handleProcessExit(tabId: string, exitCode: number): void {
+    const tab = this.tabManager.getTab(tabId);
+    if (!tab) return;
+
+    // Update tab state
+    this.tabManager.markTabExited(tabId, exitCode);
+
+    // Write exit message to terminal
+    const message =
+      exitCode === 0
+        ? '\r\n\x1b[32m[Process completed successfully]\x1b[0m\r\n'
+        : `\r\n\x1b[31m[Process exited with code ${exitCode}]\x1b[0m\r\n`;
+    tab.terminal.write(message);
+
+    // Update state to trigger re-render
+    this.tabs = this.tabManager.getAllTabs();
+
+    // Dispatch event
+    this.dispatchEvent(
+      new CustomEvent('process-complete', {
+        bubbles: true,
+        composed: true,
+        detail: { tabId, exitCode },
+      })
+    );
+
+    // Show actionbar to offer closing the tab (only if tab is closeable)
+    if (tab.closeable) {
+      this.showExitedTabActionbar(tabId, tab.label, exitCode);
+    }
+  }
+
+  /**
+   * Show actionbar offering to close an exited tab
+   */
+  private async showExitedTabActionbar(tabId: string, tabLabel: string, exitCode: number): Promise<void> {
+    const isSuccess = exitCode === 0;
+    const result = await this.showActionbar({
+      message: isSuccess
+        ? `"${tabLabel}" completed. Close tab?`
+        : `"${tabLabel}" exited (code ${exitCode}). Close tab?`,
+      type: isSuccess ? 'info' : 'warning',
+      icon: isSuccess ? 'lucide:checkCircle' : 'lucide:alertTriangle',
+      actions: [
+        { id: 'close', label: 'Close Tab', primary: true },
+        { id: 'keep', label: 'Keep Open' },
+      ],
+      timeout: { duration: 10000, defaultActionId: 'close' },
+      dismissible: true,
+    });
+
+    // Close tab if user clicked "Close Tab" or timeout triggered auto-close
+    if (result.actionId === 'close') {
+      this.closeTab(tabId);
+    }
+  }
+
+  // ========== Public API ==========
+
+  /**
+   * Create a new shell tab
+   */
+  public async createShellTab(label?: string): Promise<string> {
+    const tab = this.tabManager.createTab(
+      {
+        type: 'shell',
+        label: label || `bash ${this.tabManager.getTabCount() + 1}`,
+        closeable: this.tabManager.getTabCount() > 0, // First tab not closeable
+      },
+      this.isBright
+    );
+
+    this.tabs = this.tabManager.getAllTabs();
+
+    // Switch to new tab
+    this.switchToTab(tab.id);
+
+    // Wait for DOM update then spawn shell
+    await this.updateComplete;
+    await this.spawnProcessForTab(tab, 'jsh');
+
+    // Run setup command if this is the first tab
+    if (this.tabManager.getTabCount() === 1 && this.setupCommand) {
+      await this.waitForPrompt(tab.terminal, '~/');
+      if (tab.inputWriter) {
+        tab.inputWriter.write(this.setupCommand);
+      }
+    }
+
+    // Dispatch event
+    this.dispatchEvent(
+      new CustomEvent('tab-created', {
+        bubbles: true,
+        composed: true,
+        detail: { tabId: tab.id },
+      })
+    );
+
+    return tab.id;
+  }
+
+  /**
+   * Create a terminal tab for running a process
+   */
+  public async createProcessTab(options: ICreateTerminalTabOptions): Promise<string> {
+    const tab = this.tabManager.createTab(options, this.isBright);
+
+    this.tabs = this.tabManager.getAllTabs();
+
+    // Switch to new tab if requested (default: true)
+    if (options.switchToTab !== false) {
+      this.switchToTab(tab.id);
+    }
+
+    // Wait for DOM update
+    await this.updateComplete;
+
+    // Spawn process if command provided
+    if (options.command) {
+      await this.spawnProcessForTab(tab, options.command, options.args);
+    }
+
+    // Dispatch event
+    this.dispatchEvent(
+      new CustomEvent('tab-created', {
+        bubbles: true,
+        composed: true,
+        detail: { tabId: tab.id },
+      })
+    );
+
+    return tab.id;
+  }
+
+  /**
+   * Get the currently active tab
+   */
+  public getActiveTab(): ITerminalTab | null {
+    if (!this.activeTabId) return null;
+    return this.tabManager.getTab(this.activeTabId) || null;
+  }
+
+  /**
+   * Get all tabs
+   */
+  public getTabs(): ITerminalTab[] {
+    return this.tabManager.getAllTabs();
+  }
+
+  /**
+   * Switch to a specific tab by ID
+   */
+  public selectTab(tabId: string): boolean {
+    if (!this.tabManager.hasTab(tabId)) return false;
+    this.switchToTab(tabId);
+    return true;
+  }
+
+  /**
+   * Close a tab by ID
+   */
+  public closeTab(tabId: string): boolean {
+    const tab = this.tabManager.getTab(tabId);
+    if (!tab || !tab.closeable) return false;
+
+    // If closing active tab, switch to another
+    if (tabId === this.activeTabId) {
+      const allTabs = this.tabManager.getAllTabs();
+      const currentIndex = allTabs.findIndex((t) => t.id === tabId);
+      const nextTab = allTabs[currentIndex + 1] || allTabs[currentIndex - 1];
+
+      if (nextTab) {
+        this.switchToTab(nextTab.id);
+      } else {
+        this.activeTabId = null;
+        this.detachActiveTerminal();
+      }
+    }
+
+    // Close the tab
+    this.tabManager.closeTab(tabId);
+    this.tabs = this.tabManager.getAllTabs();
+
+    // Dispatch event
+    this.dispatchEvent(
+      new CustomEvent('tab-closed', {
+        bubbles: true,
+        composed: true,
+        detail: { tabId },
+      })
+    );
+
+    return true;
+  }
+
+  /**
+   * Write data to a tab's terminal
+   */
+  public writeToTab(tabId: string, data: string): boolean {
+    const tab = this.tabManager.getTab(tabId);
+    if (!tab) return false;
+    tab.terminal.write(data);
+    return true;
+  }
+
+  /**
+   * Send input to a tab's process (if interactive)
+   */
+  public sendInputToTab(tabId: string, data: string): boolean {
+    const tab = this.tabManager.getTab(tabId);
+    if (!tab || !tab.inputWriter) return false;
+    tab.inputWriter.write(data);
+    return true;
+  }
+
+  /**
+   * Show an actionbar notification in the terminal panel context.
+   * Use this for terminal-related decisions (e.g., retry failed process, kill process, etc.)
+   */
+  public async showActionbar(
+    options: Parameters<DeesActionbar['show']>[0]
+  ): Promise<ReturnType<DeesActionbar['show']>> {
+    if (!this.terminalActionbar) {
+      this.terminalActionbar = this.shadowRoot?.querySelector('dees-actionbar') as DeesActionbar;
+    }
+    return this.terminalActionbar?.show(options);
+  }
+
+  // ========== Utility Methods ==========
+
   public async waitForPrompt(term: Terminal, prompt: string): Promise<void> {
     return new Promise<void>((resolve) => {
       const checkPrompt = () => {
@@ -403,7 +902,7 @@ export class DeesWorkspaceTerminal extends DeesElement {
             return;
           }
         }
-        setTimeout(checkPrompt, 100); // check every 100 ms
+        setTimeout(checkPrompt, 100);
       };
 
       checkPrompt();
@@ -420,13 +919,11 @@ export class DeesWorkspaceTerminal extends DeesElement {
       envFile += `export ${key}="${envArg[key]}"\n`;
     }
 
-    // Write the environment file using the filesystem API
     await this.executionEnvironment.writeFile('/source.env', envFile);
   }
 
   /**
    * Get the underlying execution environment.
-   * Useful for advanced operations like filesystem access.
    */
   public getExecutionEnvironment(): IExecutionEnvironment | null {
     return this.executionEnvironment;

ts_web/elements/00group-workspace/dees-workspace-terminal/index.ts

@@ -1 +1,3 @@
 export * from './dees-workspace-terminal.js';
+export * from './interfaces.js';
+export * from './terminal-tab-manager.js';

ts_web/elements/00group-workspace/dees-workspace-terminal/interfaces.ts

@@ -0,0 +1,126 @@
+import type { Terminal } from 'xterm';
+import type { FitAddon } from 'xterm-addon-fit';
+import type { IProcessHandle } from '../../00group-runtime/index.js';
+
+/**
+ * Type of terminal tab based on its source/purpose
+ */
+export type TTerminalTabType =
+  | 'shell'           // Default interactive shell (jsh)
+  | 'script'          // Script from package.json
+  | 'package-update'  // Package update process
+  | 'custom';         // External process from API
+
+/**
+ * Represents a single terminal tab instance
+ */
+export interface ITerminalTab {
+  /** Unique identifier for the tab */
+  id: string;
+
+  /** Display label for the tab */
+  label: string;
+
+  /** Icon name (lucide icon) */
+  iconName: string;
+
+  /** Type of terminal process */
+  type: TTerminalTabType;
+
+  /** Whether the tab can be closed */
+  closeable: boolean;
+
+  /** xterm.js Terminal instance */
+  terminal: Terminal;
+
+  /** FitAddon for this terminal */
+  fitAddon: FitAddon;
+
+  /** Process handle (if process is running) */
+  process: IProcessHandle | null;
+
+  /** Process input writer (for interactive terminals) */
+  inputWriter: WritableStreamDefaultWriter<string> | null;
+
+  /** Whether the process has exited */
+  exited: boolean;
+
+  /** Exit code (if process has exited) */
+  exitCode: number | null;
+
+  /** Timestamp when tab was created */
+  createdAt: number;
+
+  /** Optional metadata for script tabs */
+  metadata?: {
+    scriptName?: string;
+    packageName?: string;
+    command?: string;
+  };
+}
+
+/**
+ * Options for creating a new terminal tab
+ */
+export interface ICreateTerminalTabOptions {
+  /** Display label (auto-generated if not provided) */
+  label?: string;
+
+  /** Tab type */
+  type: TTerminalTabType;
+
+  /** Icon name override */
+  iconName?: string;
+
+  /** Whether the tab can be closed (default: true for non-shell) */
+  closeable?: boolean;
+
+  /** Command to spawn (default: 'jsh' for shell type) */
+  command?: string;
+
+  /** Command arguments */
+  args?: string[];
+
+  /** Additional metadata */
+  metadata?: ITerminalTab['metadata'];
+
+  /** Whether to switch to this tab after creation (default: true) */
+  switchToTab?: boolean;
+}
+
+/**
+ * Event detail for terminal tab events
+ */
+export interface ITerminalTabEventDetail {
+  tabId: string;
+}
+
+/**
+ * Event detail for tab switch events
+ */
+export interface ITerminalTabSwitchEventDetail {
+  tabId: string;
+  previousTabId: string | null;
+}
+
+/**
+ * Event detail for process completion
+ */
+export interface ITerminalProcessCompleteEventDetail {
+  tabId: string;
+  exitCode: number;
+}
+
+/**
+ * Event detail for run-process events from bottom bar
+ */
+export interface IRunProcessEventDetail {
+  type: TTerminalTabType;
+  label: string;
+  command: string;
+  args?: string[];
+  metadata?: {
+    scriptName?: string;
+    packageName?: string;
+  };
+}

ts_web/elements/00group-workspace/dees-workspace-terminal/terminal-tab-manager.ts

@@ -0,0 +1,259 @@
+import type { Terminal, ITerminalOptions } from 'xterm';
+import type { FitAddon } from 'xterm-addon-fit';
+import type { ITerminalTab, ICreateTerminalTabOptions, TTerminalTabType } from './interfaces.js';
+import type { IXtermBundle, IXtermFitAddonBundle } from '../../../services/index.js';
+
+/**
+ * Manages terminal tabs lifecycle and state
+ */
+export class TerminalTabManager {
+  private tabs: Map<string, ITerminalTab> = new Map();
+  private tabCounter: number = 0;
+  private xtermBundle: IXtermBundle | null = null;
+  private xtermFitAddonBundle: IXtermFitAddonBundle | null = null;
+
+  /**
+   * Initialize the manager with loaded xterm modules.
+   * Must be called before creating tabs.
+   */
+  public setXtermModules(xtermBundle: IXtermBundle, fitAddonBundle: IXtermFitAddonBundle): void {
+    this.xtermBundle = xtermBundle;
+    this.xtermFitAddonBundle = fitAddonBundle;
+  }
+
+  /**
+   * Generate unique tab ID
+   */
+  private generateTabId(): string {
+    this.tabCounter++;
+    return `terminal-${this.tabCounter}-${Date.now()}`;
+  }
+
+  /**
+   * Get default label for tab type
+   */
+  private getDefaultLabel(type: TTerminalTabType, metadata?: ITerminalTab['metadata']): string {
+    switch (type) {
+      case 'shell':
+        return 'bash';
+      case 'script':
+        return metadata?.scriptName || 'script';
+      case 'package-update':
+        return metadata?.packageName ? `update ${metadata.packageName}` : 'update';
+      case 'custom':
+        return metadata?.command || 'process';
+      default:
+        return 'terminal';
+    }
+  }
+
+  /**
+   * Get default icon for tab type
+   */
+  private getDefaultIcon(type: TTerminalTabType): string {
+    switch (type) {
+      case 'shell':
+        return 'lucide:terminal';
+      case 'script':
+        return 'lucide:play';
+      case 'package-update':
+        return 'lucide:packageCheck';
+      case 'custom':
+        return 'lucide:code';
+      default:
+        return 'lucide:terminal';
+    }
+  }
+
+  /**
+   * Get terminal theme configuration
+   */
+  private getTerminalTheme(isBright: boolean): any {
+    if (isBright) {
+      return {
+        background: '#ffffff',
+        foreground: '#333333',
+        cursor: '#333333',
+        cursorAccent: '#ffffff',
+        selection: 'rgba(0, 0, 0, 0.2)',
+        black: '#000000',
+        red: '#cd3131',
+        green: '#00bc00',
+        yellow: '#949800',
+        blue: '#0451a5',
+        magenta: '#bc05bc',
+        cyan: '#0598bc',
+        white: '#555555',
+        brightBlack: '#666666',
+        brightRed: '#cd3131',
+        brightGreen: '#14ce14',
+        brightYellow: '#b5ba00',
+        brightBlue: '#0451a5',
+        brightMagenta: '#bc05bc',
+        brightCyan: '#0598bc',
+        brightWhite: '#a5a5a5',
+      };
+    } else {
+      return {
+        background: '#000000',
+        foreground: '#ffffff',
+        cursor: '#ffffff',
+        cursorAccent: '#000000',
+        selection: 'rgba(255, 255, 255, 0.2)',
+      };
+    }
+  }
+
+  /**
+   * Create a new tab instance
+   */
+  createTab(options: ICreateTerminalTabOptions, isBright: boolean): ITerminalTab {
+    if (!this.xtermBundle || !this.xtermFitAddonBundle) {
+      throw new Error('TerminalTabManager: xterm modules not initialized. Call setXtermModules() first.');
+    }
+
+    const id = this.generateTabId();
+    const type = options.type;
+
+    // Create xterm.js Terminal instance using CDN-loaded module
+    const terminal = new this.xtermBundle.Terminal({
+      convertEol: true,
+      cursorBlink: true,
+      theme: this.getTerminalTheme(isBright),
+      fontFamily: 'Menlo, Monaco, "Courier New", monospace',
+      fontSize: 13,
+      lineHeight: 1.2,
+    });
+
+    // Create FitAddon using CDN-loaded module
+    const fitAddon = new this.xtermFitAddonBundle.FitAddon();
+    terminal.loadAddon(fitAddon);
+
+    const tab: ITerminalTab = {
+      id,
+      label: options.label || this.getDefaultLabel(type, options.metadata),
+      iconName: options.iconName || this.getDefaultIcon(type),
+      type,
+      closeable: options.closeable ?? (type !== 'shell'),
+      terminal,
+      fitAddon,
+      process: null,
+      inputWriter: null,
+      exited: false,
+      exitCode: null,
+      createdAt: Date.now(),
+      metadata: options.metadata,
+    };
+
+    this.tabs.set(id, tab);
+    return tab;
+  }
+
+  /**
+   * Get tab by ID
+   */
+  getTab(id: string): ITerminalTab | undefined {
+    return this.tabs.get(id);
+  }
+
+  /**
+   * Get all tabs as array (ordered by creation time)
+   */
+  getAllTabs(): ITerminalTab[] {
+    return Array.from(this.tabs.values()).sort((a, b) => a.createdAt - b.createdAt);
+  }
+
+  /**
+   * Get the number of tabs
+   */
+  getTabCount(): number {
+    return this.tabs.size;
+  }
+
+  /**
+   * Check if tab exists
+   */
+  hasTab(id: string): boolean {
+    return this.tabs.has(id);
+  }
+
+  /**
+   * Close and cleanup a tab
+   */
+  closeTab(id: string): boolean {
+    const tab = this.tabs.get(id);
+    if (!tab) return false;
+
+    // Kill process if still running
+    if (tab.process && !tab.exited) {
+      try {
+        tab.process.kill();
+      } catch (e) {
+        console.warn('Failed to kill process:', e);
+      }
+    }
+
+    // Dispose terminal
+    try {
+      tab.terminal.dispose();
+    } catch (e) {
+      console.warn('Failed to dispose terminal:', e);
+    }
+
+    this.tabs.delete(id);
+    return true;
+  }
+
+  /**
+   * Rename a tab
+   */
+  renameTab(id: string, newLabel: string): boolean {
+    const tab = this.tabs.get(id);
+    if (!tab) return false;
+
+    tab.label = newLabel;
+    return true;
+  }
+
+  /**
+   * Update tab process state to exited
+   */
+  markTabExited(id: string, exitCode: number): void {
+    const tab = this.tabs.get(id);
+    if (!tab) return;
+
+    tab.exited = true;
+    tab.exitCode = exitCode;
+  }
+
+  /**
+   * Set process for a tab
+   */
+  setTabProcess(id: string, process: ITerminalTab['process'], inputWriter: ITerminalTab['inputWriter']): void {
+    const tab = this.tabs.get(id);
+    if (!tab) return;
+
+    tab.process = process;
+    tab.inputWriter = inputWriter;
+  }
+
+  /**
+   * Update theme for all terminals
+   */
+  updateAllThemes(isBright: boolean): void {
+    const theme = this.getTerminalTheme(isBright);
+    for (const tab of this.tabs.values()) {
+      tab.terminal.options.theme = theme;
+    }
+  }
+
+  /**
+   * Dispose all tabs and cleanup
+   */
+  disposeAll(): void {
+    for (const [id] of this.tabs) {
+      this.closeTab(id);
+    }
+    this.tabs.clear();
+  }
+}

ts_web/elements/00group-workspace/dees-workspace/dees-workspace.ts

@@ -12,16 +12,23 @@ import * as domtools from '@design.estate/dees-domtools';
 import { themeDefaultStyles } from '../../00theme.js';
 import type { IExecutionEnvironment, IFileWatcher } from '../../00group-runtime/index.js';
 import { WebContainerEnvironment } from '../../00group-runtime/index.js';
-import type { FileSystemTree } from '@webcontainer/api';
+import type { FileSystemTree } from '@tempfix/webcontainer__api';
 import '../dees-workspace-monaco/dees-workspace-monaco.js';
 import '../dees-workspace-filetree/dees-workspace-filetree.js';
 import { DeesWorkspaceFiletree } from '../dees-workspace-filetree/dees-workspace-filetree.js';
 import '../dees-workspace-terminal/dees-workspace-terminal.js';
+import { DeesWorkspaceTerminal } from '../dees-workspace-terminal/dees-workspace-terminal.js';
+import type { IRunProcessEventDetail } from '../dees-workspace-terminal/interfaces.js';
 import '../dees-workspace-terminal-preview/dees-workspace-terminal-preview.js';
+import '../dees-workspace-bottombar/dees-workspace-bottombar.js';
 import '../../dees-icon/dees-icon.js';
 import { DeesWorkspaceMonaco } from '../dees-workspace-monaco/dees-workspace-monaco.js';
 import { TypeScriptIntelliSenseManager } from './typescript-intellisense.js';
 import { DeesContextmenu } from '../../dees-contextmenu/dees-contextmenu.js';
+import '@design.estate/dees-wcctools/demotools';
+import '../../dees-actionbar/dees-actionbar.js';
+import type { DeesActionbar } from '../../dees-actionbar/dees-actionbar.js';
+import '../dees-workspace-diff-editor/dees-workspace-diff-editor.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -61,6 +68,7 @@ export class DeesWorkspace extends DeesElement {
                   '@push.rocks/smartpromise': '^4.2.3',
                 },
                 devDependencies: {
+                  '@types/node': '^22.0.0',
                   typescript: '^5.0.0',
                 },
               },
@@ -174,13 +182,19 @@ testSmartPromise();
       await env.mount(fileTree);
     })();
 
+    // Create container element for proper 100% height like dees-appui
+    const containerElement = document.createElement('div');
+    containerElement.style.cssText = 'position: absolute; top: 0; left: 0; height: 100%; width: 100%; overflow: hidden;';
+
+    const workspaceElement = document.createElement('dees-workspace') as DeesWorkspace;
+    workspaceElement.executionEnvironment = env;
+    workspaceElement.initializationPromise = mountPromise;
+    containerElement.appendChild(workspaceElement);
+
     return html`
-      <div style="width: 100%; height: 600px; position: relative;">
-        <dees-workspace
-          .executionEnvironment=${env}
-          .initializationPromise=${mountPromise}
-        ></dees-workspace>
-      </div>
+      <dees-demowrapper>
+        ${containerElement}
+      </dees-demowrapper>
     `;
   };
 
@@ -243,6 +257,11 @@ testSmartPromise();
   private nodeModulesDebounceTimeout: ReturnType<typeof setTimeout> | null = null;
   private intelliSenseDebounceTimeout: ReturnType<typeof setTimeout> | null = null;
 
+  // Open file watchers for external change detection
+  private openFileWatchers: Map<string, IFileWatcher> = new Map();
+  private fileChangeDebounce: Map<string, ReturnType<typeof setTimeout>> = new Map();
+  private actionbarElement: DeesActionbar | null = null;
+
   // Auto-save functionality
   @state()
   accessor autoSave: boolean = false;
@@ -255,6 +274,31 @@ testSmartPromise();
   @state()
   accessor initOutput: string[] = [];
 
+  // Resize state
+  @state()
+  accessor currentFileTreeWidth: number = 250;
+
+  @state()
+  accessor currentTerminalHeight: number = 200;
+
+  @state()
+  accessor isDraggingFileTree: boolean = false;
+
+  @state()
+  accessor isDraggingTerminal: boolean = false;
+
+  // Diff view state
+  @state()
+  accessor showDiffView: boolean = false;
+
+  @state()
+  accessor diffViewConfig: {
+    filePath: string;
+    originalContent: string;
+    modifiedContent: string;
+    language: string;
+  } | null = null;
+
   // Keyboard shortcut handler (bound for proper cleanup)
   private keydownHandler = (e: KeyboardEvent) => {
     // Cmd+S (Mac) or Ctrl+S (Windows/Linux) - Save
@@ -270,6 +314,71 @@ testSmartPromise();
     }
   };
 
+  // ========== Filetree Resize Handlers ==========
+  private handleFileTreeMouseDown = (e: MouseEvent) => {
+    e.preventDefault();
+    this.isDraggingFileTree = true;
+    document.addEventListener('mousemove', this.handleFileTreeMouseMove);
+    document.addEventListener('mouseup', this.handleFileTreeMouseUp);
+  };
+
+  private handleFileTreeMouseMove = (e: MouseEvent) => {
+    if (!this.isDraggingFileTree) return;
+
+    const containerRect = this.getBoundingClientRect();
+    const mouseX = e.clientX - containerRect.left;
+
+    // Clamp to min/max (150px min, 50% of container max)
+    const minWidth = 150;
+    const maxWidth = containerRect.width * 0.5;
+    const newWidth = Math.max(minWidth, Math.min(maxWidth, mouseX));
+
+    this.currentFileTreeWidth = newWidth;
+  };
+
+  private handleFileTreeMouseUp = () => {
+    this.isDraggingFileTree = false;
+    document.removeEventListener('mousemove', this.handleFileTreeMouseMove);
+    document.removeEventListener('mouseup', this.handleFileTreeMouseUp);
+
+    // Notify Monaco editor of size change
+    window.dispatchEvent(new Event('resize'));
+  };
+
+  // ========== Terminal Resize Handlers ==========
+  private handleTerminalMouseDown = (e: MouseEvent) => {
+    e.preventDefault();
+    this.isDraggingTerminal = true;
+    document.addEventListener('mousemove', this.handleTerminalMouseMove);
+    document.addEventListener('mouseup', this.handleTerminalMouseUp);
+  };
+
+  private handleTerminalMouseMove = (e: MouseEvent) => {
+    if (!this.isDraggingTerminal) return;
+
+    const containerRect = this.getBoundingClientRect();
+    const mouseY = e.clientY - containerRect.top;
+
+    // Calculate terminal height from bottom
+    const terminalHeight = containerRect.height - mouseY;
+
+    // Clamp to min/max (100px min, 70% of container max)
+    const minHeight = 100;
+    const maxHeight = containerRect.height * 0.7;
+    const newHeight = Math.max(minHeight, Math.min(maxHeight, terminalHeight));
+
+    this.currentTerminalHeight = newHeight;
+  };
+
+  private handleTerminalMouseUp = () => {
+    this.isDraggingTerminal = false;
+    document.removeEventListener('mousemove', this.handleTerminalMouseMove);
+    document.removeEventListener('mouseup', this.handleTerminalMouseUp);
+
+    // Notify Monaco editor of size change
+    window.dispatchEvent(new Event('resize'));
+  };
+
   public static styles = [
     themeDefaultStyles,
     cssManager.defaultStyles,
@@ -285,68 +394,54 @@ testSmartPromise();
         font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
       }
 
-      .workspace-container {
-        display: grid;
+      .workspace-outer {
+        display: flex;
+        flex-direction: column;
         height: 100%;
         width: 100%;
       }
 
-      .workspace-container.with-filetree.with-terminal {
-        grid-template-columns: auto 1fr;
-        grid-template-rows: 1fr auto;
-        grid-template-areas:
-          "filetree editor"
-          "filetree terminal";
+      .workspace-container {
+        display: flex;
+        flex-direction: row;
+        flex: 1;
+        min-height: 0;
+        width: 100%;
       }
 
-      .workspace-container.with-filetree:not(.with-terminal) {
-        grid-template-columns: auto 1fr;
-        grid-template-rows: 1fr;
-        grid-template-areas: "filetree editor";
-      }
-
-      .workspace-container:not(.with-filetree).with-terminal {
-        grid-template-columns: 1fr;
-        grid-template-rows: 1fr auto;
-        grid-template-areas:
-          "editor"
-          "terminal";
-      }
-
-      .workspace-container:not(.with-filetree):not(.with-terminal) {
-        grid-template-columns: 1fr;
-        grid-template-rows: 1fr;
-        grid-template-areas: "editor";
+      .editor-area {
+        display: flex;
+        flex-direction: column;
+        flex: 1;
+        min-width: 0;
+        overflow: hidden;
       }
 
       .filetree-panel {
-        grid-area: filetree;
         position: relative;
-        border-right: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 15%)')};
         overflow: hidden;
-        transition: width 0.2s ease;
+        flex-shrink: 0;
       }
 
       .filetree-panel.collapsed {
         width: 0 !important;
-        border-right: none;
       }
 
       .editor-panel {
-        grid-area: editor;
         position: relative;
         display: flex;
         flex-direction: column;
         overflow: hidden;
         background: ${cssManager.bdTheme('hsl(0 0% 100%)', 'hsl(0 0% 9%)')};
+        flex: 1;
+        min-width: 200px;
       }
 
       .terminal-panel {
-        grid-area: terminal;
         position: relative;
         border-top: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 15%)')};
         overflow: hidden;
-        transition: height 0.2s ease;
+        flex-shrink: 0;
       }
 
       .terminal-panel.collapsed {
@@ -662,6 +757,7 @@ testSmartPromise();
         margin-top: 24px;
         width: 80%;
         max-width: 600px;
+        height: 200px;
       }
 
       dees-workspace-filetree {
@@ -687,14 +783,96 @@ testSmartPromise();
         right: 0;
         bottom: 0;
       }
+
+      /* Resize handles */
+      .resize-handle-vertical {
+        width: 6px;
+        cursor: col-resize;
+        background: transparent;
+        transition: background 0.15s ease;
+        position: relative;
+        flex-shrink: 0;
+        z-index: 10;
+      }
+
+      .resize-handle-vertical:hover,
+      .resize-handle-vertical.dragging {
+        background: ${cssManager.bdTheme('#3b82f6', '#58a6ff')};
+      }
+
+      .resize-handle-vertical::after {
+        content: '';
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        width: 2px;
+        height: 32px;
+        background: ${cssManager.bdTheme('#9ca3af', '#6e7681')};
+        border-radius: 1px;
+        opacity: 0;
+        transition: opacity 0.15s ease;
+      }
+
+      .resize-handle-vertical:hover::after,
+      .resize-handle-vertical.dragging::after {
+        opacity: 1;
+        background: ${cssManager.bdTheme('#ffffff', '#ffffff')};
+      }
+
+      .resize-handle-horizontal {
+        height: 6px;
+        cursor: row-resize;
+        background: transparent;
+        transition: background 0.15s ease;
+        position: relative;
+        flex-shrink: 0;
+        z-index: 10;
+      }
+
+      .resize-handle-horizontal:hover,
+      .resize-handle-horizontal.dragging {
+        background: ${cssManager.bdTheme('#3b82f6', '#58a6ff')};
+      }
+
+      .resize-handle-horizontal::after {
+        content: '';
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        width: 32px;
+        height: 2px;
+        background: ${cssManager.bdTheme('#9ca3af', '#6e7681')};
+        border-radius: 1px;
+        opacity: 0;
+        transition: opacity 0.15s ease;
+      }
+
+      .resize-handle-horizontal:hover::after,
+      .resize-handle-horizontal.dragging::after {
+        opacity: 1;
+        background: ${cssManager.bdTheme('#ffffff', '#ffffff')};
+      }
+
+      /* Prevent text selection while dragging */
+      .workspace-container.dragging {
+        user-select: none;
+      }
+
+      .workspace-container.dragging .filetree-panel,
+      .workspace-container.dragging .editor-panel,
+      .workspace-container.dragging .terminal-panel {
+        pointer-events: none;
+      }
+
     `,
   ];
 
   public render(): TemplateResult {
     const containerClasses = [
       'workspace-container',
-      this.showFileTree && !this.isFileTreeCollapsed ? 'with-filetree' : '',
-      this.showTerminal ? 'with-terminal' : '',
+      (this.isDraggingFileTree || this.isDraggingTerminal) ? 'dragging' : '',
     ].filter(Boolean).join(' ');
 
     if (this.isInitializing) {
@@ -702,113 +880,148 @@ testSmartPromise();
         <div class="initializing">
           <dees-icon .icon=${'lucide:loader2'} iconSize="32"></dees-icon>
           <span>Initializing workspace...</span>
-          ${this.initCommand ? html`
-            <dees-workspace-terminal-preview
-              .command=${this.initCommand}
-              .lines=${this.initOutput}
-            ></dees-workspace-terminal-preview>
-          ` : ''}
+          <dees-workspace-terminal-preview
+            .command=${this.initCommand || ''}
+            .lines=${this.initOutput}
+          ></dees-workspace-terminal-preview>
         </div>
       `;
     }
 
     return html`
-      <div class="${containerClasses}">
-        ${this.showFileTree ? html`
-          <div
-            class="filetree-panel ${this.isFileTreeCollapsed ? 'collapsed' : ''}"
-            style="width: ${this.isFileTreeCollapsed ? 0 : this.fileTreeWidth}px"
-          >
-            <dees-workspace-filetree
-              .executionEnvironment=${this.executionEnvironment}
-              .selectedPath=${this.activeFilePath}
-              @file-select=${this.handleFileSelect}
-            ></dees-workspace-filetree>
-          </div>
-        ` : ''}
+      <div class="workspace-outer">
+        <div class="${containerClasses}">
+          <!-- Filetree panel (full height) -->
+          ${this.showFileTree ? html`
+            <div
+              class="filetree-panel ${this.isFileTreeCollapsed ? 'collapsed' : ''}"
+              style="width: ${this.isFileTreeCollapsed ? 0 : this.currentFileTreeWidth}px"
+            >
+              <dees-workspace-filetree
+                .executionEnvironment=${this.executionEnvironment}
+                .selectedPath=${this.activeFilePath}
+                @file-select=${this.handleFileSelect}
+              ></dees-workspace-filetree>
+            </div>
+            ${!this.isFileTreeCollapsed ? html`
+              <div
+                class="resize-handle-vertical ${this.isDraggingFileTree ? 'dragging' : ''}"
+                @mousedown=${this.handleFileTreeMouseDown}
+              ></div>
+            ` : ''}
+          ` : ''}
 
-        <div class="editor-panel">
-          <div class="tabs-bar">
-            <div class="tabs-container">
-              ${this.openFiles.map(file => html`
-                <div
-                  class="tab ${file.path === this.activeFilePath ? 'active' : ''}"
-                  @click=${() => this.activateFile(file.path)}
-                >
-                  ${file.modified ? html`<span class="tab-modified"></span>` : ''}
-                  <span class="tab-name">${file.name}</span>
-                  <span class="tab-close" @click=${(e: Event) => this.closeFile(e, file.path)}>
-                    <dees-icon .icon=${'lucide:x'} iconSize="12"></dees-icon>
-                  </span>
+          <!-- Editor + Terminal area -->
+          <div class="editor-area">
+            <div class="editor-panel">
+              <div class="tabs-bar">
+                <div class="tabs-container">
+                  ${this.openFiles.map(file => html`
+                    <div
+                      class="tab ${file.path === this.activeFilePath ? 'active' : ''}"
+                      @click=${() => this.activateFile(file.path)}
+                    >
+                      ${file.modified ? html`<span class="tab-modified"></span>` : ''}
+                      <span class="tab-name">${file.name}</span>
+                      <span class="tab-close" @click=${(e: Event) => this.closeFile(e, file.path)}>
+                        <dees-icon .icon=${'lucide:x'} iconSize="12"></dees-icon>
+                      </span>
+                    </div>
+                  `)}
+                </div>
+                <div class="editor-menu-button" @click=${this.showEditorMenu} title="Editor options">
+                  <dees-icon .icon=${'lucide:moreVertical'} iconSize="16"></dees-icon>
                 </div>
-              `)}
-            </div>
-            <div class="editor-menu-button" @click=${this.showEditorMenu} title="Editor options">
-              <dees-icon .icon=${'lucide:moreVertical'} iconSize="16"></dees-icon>
-            </div>
-          </div>
-          <div class="editor-content">
-            ${this.openFiles.length === 0 ? html`
-              <div class="empty-state">
-                <dees-icon .icon=${'lucide:fileCode'} iconSize="48"></dees-icon>
-                <span>Select a file to edit</span>
               </div>
-            ` : html`
-              <dees-workspace-monaco
-                .filePath=${this.activeFilePath}
-                .content=${this.getActiveFileContent()}
-                .language=${this.getLanguageFromPath(this.activeFilePath)}
-                @content-change=${this.handleContentChange}
-              ></dees-workspace-monaco>
-            `}
+              <div class="editor-content">
+                ${this.showDiffView && this.diffViewConfig ? html`
+                  <dees-workspace-diff-editor
+                    .filePath=${this.diffViewConfig.filePath}
+                    .originalContent=${this.diffViewConfig.originalContent}
+                    .modifiedContent=${this.diffViewConfig.modifiedContent}
+                    .language=${this.diffViewConfig.language}
+                    @diff-resolved=${this.handleDiffResolved}
+                    @diff-closed=${() => { this.showDiffView = false; this.diffViewConfig = null; }}
+                  ></dees-workspace-diff-editor>
+                ` : this.openFiles.length === 0 ? html`
+                  <div class="empty-state">
+                    <dees-icon .icon=${'lucide:fileCode'} iconSize="48"></dees-icon>
+                    <span>Select a file to edit</span>
+                  </div>
+                ` : html`
+                  <dees-workspace-monaco
+                    .filePath=${this.activeFilePath}
+                    .content=${this.getActiveFileContent()}
+                    .language=${this.getLanguageFromPath(this.activeFilePath)}
+                    @content-change=${this.handleContentChange}
+                  ></dees-workspace-monaco>
+                `}
+              </div>
+              <dees-actionbar></dees-actionbar>
+            </div>
+
+            <!-- Horizontal resize handle for terminal -->
+            ${this.showTerminal && !this.isTerminalCollapsed ? html`
+              <div
+                class="resize-handle-horizontal ${this.isDraggingTerminal ? 'dragging' : ''}"
+                @mousedown=${this.handleTerminalMouseDown}
+              ></div>
+            ` : ''}
+
+            <!-- Terminal panel -->
+            ${this.showTerminal ? html`
+              <div
+                class="terminal-panel ${this.isTerminalCollapsed ? 'collapsed' : ''}"
+                style="height: ${this.isTerminalCollapsed ? 32 : this.currentTerminalHeight}px"
+              >
+                <div class="panel-header">
+                  <div class="panel-tabs">
+                    <div
+                      class="panel-tab ${this.activeBottomPanel === 'terminal' ? 'active' : ''}"
+                      @click=${() => this.activeBottomPanel = 'terminal'}
+                    >
+                      <dees-icon .icon=${'lucide:terminal'} iconSize="14"></dees-icon>
+                      Terminal
+                    </div>
+                    <div
+                      class="panel-tab ${this.activeBottomPanel === 'problems' ? 'active' : ''}"
+                      @click=${() => this.activeBottomPanel = 'problems'}
+                    >
+                      <dees-icon .icon=${'lucide:circleAlert'} iconSize="14"></dees-icon>
+                      Problems
+                      ${this.diagnosticMarkers.length > 0 ? html`
+                        <span class="panel-tab-badge ${this.getErrorCount() === 0 ? 'warning' : ''}">${this.diagnosticMarkers.length}</span>
+                      ` : ''}
+                    </div>
+                  </div>
+                  <div class="panel-header-actions">
+                    <div class="panel-action" @click=${this.toggleTerminal}>
+                      <dees-icon
+                        .icon=${this.isTerminalCollapsed ? 'lucide:chevronUp' : 'lucide:chevronDown'}
+                        iconSize="14"
+                      ></dees-icon>
+                    </div>
+                  </div>
+                </div>
+                <div class="terminal-content" style="display: ${this.activeBottomPanel === 'terminal' ? 'block' : 'none'}">
+                  <dees-workspace-terminal
+                    .executionEnvironment=${this.executionEnvironment}
+                    .setupCommand=${''}
+                  ></dees-workspace-terminal>
+                </div>
+                <div class="problems-content" style="display: ${this.activeBottomPanel === 'problems' ? 'block' : 'none'}">
+                  ${this.renderProblemsPanel()}
+                </div>
+              </div>
+            ` : ''}
           </div>
         </div>
 
-        ${this.showTerminal ? html`
-          <div
-            class="terminal-panel ${this.isTerminalCollapsed ? 'collapsed' : ''}"
-            style="height: ${this.isTerminalCollapsed ? 32 : this.terminalHeight}px"
-          >
-            <div class="panel-header">
-              <div class="panel-tabs">
-                <div
-                  class="panel-tab ${this.activeBottomPanel === 'terminal' ? 'active' : ''}"
-                  @click=${() => this.activeBottomPanel = 'terminal'}
-                >
-                  <dees-icon .icon=${'lucide:terminal'} iconSize="14"></dees-icon>
-                  Terminal
-                </div>
-                <div
-                  class="panel-tab ${this.activeBottomPanel === 'problems' ? 'active' : ''}"
-                  @click=${() => this.activeBottomPanel = 'problems'}
-                >
-                  <dees-icon .icon=${'lucide:circleAlert'} iconSize="14"></dees-icon>
-                  Problems
-                  ${this.diagnosticMarkers.length > 0 ? html`
-                    <span class="panel-tab-badge ${this.getErrorCount() === 0 ? 'warning' : ''}">${this.diagnosticMarkers.length}</span>
-                  ` : ''}
-                </div>
-              </div>
-              <div class="panel-header-actions">
-                <div class="panel-action" @click=${this.toggleTerminal}>
-                  <dees-icon
-                    .icon=${this.isTerminalCollapsed ? 'lucide:chevronUp' : 'lucide:chevronDown'}
-                    iconSize="14"
-                  ></dees-icon>
-                </div>
-              </div>
-            </div>
-            <div class="terminal-content" style="display: ${this.activeBottomPanel === 'terminal' ? 'block' : 'none'}">
-              <dees-workspace-terminal
-                .executionEnvironment=${this.executionEnvironment}
-                .setupCommand=${''}
-              ></dees-workspace-terminal>
-            </div>
-            <div class="problems-content" style="display: ${this.activeBottomPanel === 'problems' ? 'block' : 'none'}">
-              ${this.renderProblemsPanel()}
-            </div>
-          </div>
-        ` : ''}
+        <!-- Bottom Bar (full width) -->
+        <dees-workspace-bottombar
+          .executionEnvironment=${this.executionEnvironment}
+          @run-process=${this.handleRunProcess}
+        ></dees-workspace-bottombar>
       </div>
     `;
   }
@@ -821,14 +1034,26 @@ testSmartPromise();
   async disconnectedCallback() {
     await super.disconnectedCallback();
     document.removeEventListener('keydown', this.keydownHandler);
+
+    // Clean up resize event listeners
+    document.removeEventListener('mousemove', this.handleFileTreeMouseMove);
+    document.removeEventListener('mouseup', this.handleFileTreeMouseUp);
+    document.removeEventListener('mousemove', this.handleTerminalMouseMove);
+    document.removeEventListener('mouseup', this.handleTerminalMouseUp);
+
     if (this.autoSaveInterval) {
       clearInterval(this.autoSaveInterval);
       this.autoSaveInterval = null;
     }
     this.stopNodeModulesWatcher();
+    this.stopAllFileWatchers();
   }
 
   public async firstUpdated() {
+    // Initialize current sizes from properties
+    this.currentFileTreeWidth = this.fileTreeWidth;
+    this.currentTerminalHeight = this.terminalHeight;
+
     if (this.executionEnvironment) {
       await this.initializeWorkspace();
     }
@@ -838,6 +1063,11 @@ testSmartPromise();
     if (changedProperties.has('executionEnvironment') && this.executionEnvironment) {
       await this.initializeWorkspace();
     }
+
+    // Capture actionbar reference when it becomes available (after initialization completes)
+    if (!this.actionbarElement) {
+      this.actionbarElement = this.shadowRoot?.querySelector('.editor-panel dees-actionbar') as DeesActionbar;
+    }
   }
 
   private async initializeWorkspace() {
@@ -992,6 +1222,191 @@ testSmartPromise();
     }
   }
 
+  // ========== Open File Watching for External Changes ==========
+
+  /**
+   * Start watching an open file for external changes
+   */
+  private startWatchingFile(path: string): void {
+    if (!this.executionEnvironment || this.openFileWatchers.has(path)) return;
+
+    try {
+      const watcher = this.executionEnvironment.watch(
+        path,
+        (_event, _filename) => {
+          // Debounce to avoid multiple rapid triggers
+          const existingTimeout = this.fileChangeDebounce.get(path);
+          if (existingTimeout) {
+            clearTimeout(existingTimeout);
+          }
+          const timeout = setTimeout(() => {
+            this.handleExternalFileChange(path);
+            this.fileChangeDebounce.delete(path);
+          }, 300);
+          this.fileChangeDebounce.set(path, timeout);
+        }
+      );
+      this.openFileWatchers.set(path, watcher);
+    } catch (error) {
+      console.warn(`Could not watch file ${path}:`, error);
+    }
+  }
+
+  /**
+   * Stop watching a file when it's closed
+   */
+  private stopWatchingFile(path: string): void {
+    const watcher = this.openFileWatchers.get(path);
+    if (watcher) {
+      watcher.stop();
+      this.openFileWatchers.delete(path);
+    }
+    const timeout = this.fileChangeDebounce.get(path);
+    if (timeout) {
+      clearTimeout(timeout);
+      this.fileChangeDebounce.delete(path);
+    }
+  }
+
+  /**
+   * Stop all file watchers
+   */
+  private stopAllFileWatchers(): void {
+    for (const watcher of this.openFileWatchers.values()) {
+      watcher.stop();
+    }
+    this.openFileWatchers.clear();
+
+    for (const timeout of this.fileChangeDebounce.values()) {
+      clearTimeout(timeout);
+    }
+    this.fileChangeDebounce.clear();
+  }
+
+  /**
+   * Handle external file change - show actionbar if file has local changes,
+   * otherwise silently update with cursor preservation
+   */
+  private async handleExternalFileChange(path: string): Promise<void> {
+    const file = this.openFiles.find(f => f.path === path);
+    if (!file || !this.executionEnvironment) return;
+
+    try {
+      // Read the new content from disk
+      const newContent = await this.executionEnvironment.readFile(path);
+
+      // If content is same as what we have, no action needed
+      if (newContent === file.content) return;
+
+      if (file.modified) {
+        // File has unsaved local changes AND disk changed - conflict!
+        const result = await this.actionbarElement?.show({
+          message: `"${file.name}" changed on disk. What do you want to do?`,
+          type: 'question',
+          icon: 'lucide:gitMerge',
+          actions: [
+            { id: 'load-disk', label: 'Load from Disk', primary: true },
+            { id: 'save-local', label: 'Save Local to Disk' },
+            { id: 'compare', label: 'Compare' },
+          ],
+          timeout: { duration: 15000, defaultActionId: 'load-disk' },
+          dismissible: true,
+        });
+
+        if (result?.actionId === 'load-disk') {
+          // Discard local changes, load disk version
+          await this.updateFileContent(path, newContent, false);
+        } else if (result?.actionId === 'save-local') {
+          // Keep local changes and save to disk (overwrite external)
+          await this.executionEnvironment.writeFile(path, file.content);
+          // Mark as saved
+          this.openFiles = this.openFiles.map(f =>
+            f.path === path ? { ...f, modified: false } : f
+          );
+        } else if (result?.actionId === 'compare') {
+          // Open diff view
+          this.openDiffView(path, file.content, newContent);
+        }
+        // If dismissed, do nothing - user can manually resolve later
+      } else {
+        // No local changes - silently update with cursor preservation
+        await this.updateFileContent(path, newContent, true);
+      }
+    } catch (error) {
+      console.warn(`Failed to handle external change for ${path}:`, error);
+    }
+  }
+
+  /**
+   * Update file content in state and optionally in the editor
+   */
+  private async updateFileContent(
+    path: string,
+    newContent: string,
+    preserveCursor: boolean
+  ): Promise<void> {
+    // Update internal state
+    this.openFiles = this.openFiles.map(f =>
+      f.path === path ? { ...f, content: newContent, modified: false } : f
+    );
+
+    // If this is the active file, update Monaco editor
+    if (path === this.activeFilePath) {
+      const editor = this.shadowRoot?.querySelector('dees-workspace-monaco') as DeesWorkspaceMonaco;
+      if (editor) {
+        await editor.setContentExternal(newContent, preserveCursor);
+      }
+    }
+  }
+
+  /**
+   * Open the diff view to compare local and disk versions
+   */
+  private openDiffView(path: string, localContent: string, diskContent: string): void {
+    this.diffViewConfig = {
+      filePath: path,
+      originalContent: diskContent,
+      modifiedContent: localContent,
+      language: this.getLanguageFromPath(path),
+    };
+    this.showDiffView = true;
+  }
+
+  /**
+   * Handle diff view resolution
+   */
+  private async handleDiffResolved(e: CustomEvent): Promise<void> {
+    const { action, content } = e.detail;
+    const path = this.diffViewConfig?.filePath;
+
+    if (!path || !this.executionEnvironment) {
+      this.showDiffView = false;
+      this.diffViewConfig = null;
+      return;
+    }
+
+    if (action === 'use-local') {
+      // Save local content to disk
+      await this.executionEnvironment.writeFile(path, content);
+      this.openFiles = this.openFiles.map(f =>
+        f.path === path ? { ...f, content, modified: false } : f
+      );
+      // Update editor if active
+      if (path === this.activeFilePath) {
+        const editor = this.shadowRoot?.querySelector('dees-workspace-monaco') as DeesWorkspaceMonaco;
+        if (editor) {
+          await editor.setContentExternal(content, false);
+        }
+      }
+    } else if (action === 'use-disk') {
+      // Update editor with disk content
+      await this.updateFileContent(path, content, false);
+    }
+
+    this.showDiffView = false;
+    this.diffViewConfig = null;
+  }
+
   private async handleFileSelect(e: CustomEvent<{ path: string; name: string }>) {
     const { path, name } = e.detail;
     await this.openFile(path, name);
@@ -1016,6 +1431,9 @@ testSmartPromise();
       ];
       this.activeFilePath = path;
 
+      // Start watching for external changes
+      this.startWatchingFile(path);
+
       // Initialize IntelliSense lazily after first file opens (Monaco loads on demand)
       if (!this.intelliSenseInitialized) {
         // Wait for Monaco editor to mount and load Monaco from CDN
@@ -1052,6 +1470,9 @@ testSmartPromise();
       if (!confirmed) return;
     }
 
+    // Stop watching this file
+    this.stopWatchingFile(path);
+
     this.openFiles = this.openFiles.filter(f => f.path !== path);
 
     // If closing the active file, activate another one
@@ -1309,4 +1730,73 @@ testSmartPromise();
       resource: { path: m.resource.path },
     }));
   }
+
+  // ========== Bottom Bar Event Handlers ==========
+
+  /**
+   * Handle run-process events from bottom bar widgets
+   * Creates a new terminal tab for the process
+   */
+  private async handleRunProcess(e: CustomEvent<IRunProcessEventDetail>): Promise<void> {
+    const detail = e.detail;
+
+    // Find the terminal component
+    const terminal = this.shadowRoot?.querySelector('dees-workspace-terminal') as DeesWorkspaceTerminal;
+    if (!terminal) {
+      console.warn('Terminal component not found');
+      return;
+    }
+
+    // Expand terminal if collapsed
+    if (this.isTerminalCollapsed) {
+      this.isTerminalCollapsed = false;
+    }
+
+    // Switch to terminal panel
+    this.activeBottomPanel = 'terminal';
+
+    // Wait for UI update
+    await this.updateComplete;
+
+    // Create a new terminal tab for the process
+    await terminal.createProcessTab({
+      type: detail.type,
+      label: detail.label,
+      command: detail.command,
+      args: detail.args,
+      metadata: detail.metadata,
+      switchToTab: true,
+    });
+  }
+
+  // ========== Public Layout Methods ==========
+
+  /**
+   * Programmatically set the file tree width
+   */
+  public setFileTreeWidth(width: number): void {
+    const minWidth = 150;
+    const maxWidth = this.getBoundingClientRect().width * 0.5;
+    this.currentFileTreeWidth = Math.max(minWidth, Math.min(maxWidth, width));
+    window.dispatchEvent(new Event('resize'));
+  }
+
+  /**
+   * Programmatically set the terminal height
+   */
+  public setTerminalHeight(height: number): void {
+    const minHeight = 100;
+    const maxHeight = this.getBoundingClientRect().height * 0.7;
+    this.currentTerminalHeight = Math.max(minHeight, Math.min(maxHeight, height));
+    window.dispatchEvent(new Event('resize'));
+  }
+
+  /**
+   * Reset layout to initial property values
+   */
+  public resetLayout(): void {
+    this.currentFileTreeWidth = this.fileTreeWidth;
+    this.currentTerminalHeight = this.terminalHeight;
+    window.dispatchEvent(new Event('resize'));
+  }
 }

ts_web/elements/00group-workspace/dees-workspace/typescript-intellisense.ts

@@ -378,7 +378,10 @@ export class TypeScriptIntelliSenseManager {
     const existingModel = this.monacoInstance.editor.getModel(uri);
 
     if (existingModel) {
-      existingModel.setValue(content);
+      // Only update if content actually changed (prevents cursor reset)
+      if (existingModel.getValue() !== content) {
+        existingModel.setValue(content);
+      }
     } else {
       const language = this.getLanguageFromPath(path);
       this.monacoInstance.editor.createModel(content, language, uri);

ts_web/elements/00group-workspace/index.ts

@@ -6,3 +6,5 @@ export * from './dees-workspace-terminal/index.js';
 export * from './dees-workspace-terminal-preview/index.js';
 export * from './dees-workspace-markdown/index.js';
 export * from './dees-workspace-markdownoutlet/index.js';
+export * from './dees-workspace-bottombar/index.js';
+export * from './dees-workspace-diff-editor/index.js';

ts_web/elements/dees-actionbar/actionbar.interfaces.ts

@@ -0,0 +1,54 @@
+/**
+ * Action button configuration for the action bar
+ */
+export interface IActionBarAction {
+  /** Unique identifier for the action */
+  id: string;
+  /** Button label text */
+  label: string;
+  /** Primary action gets highlighted styling and receives timeout trigger */
+  primary?: boolean;
+  /** Lucide icon name (optional) */
+  icon?: string;
+}
+
+/**
+ * Configuration options for showing an action bar
+ */
+export interface IActionBarOptions {
+  /** Message text to display */
+  message: string;
+  /** Lucide icon name for the message (optional) */
+  icon?: string;
+  /** Visual type affects coloring */
+  type?: 'info' | 'warning' | 'error' | 'question';
+  /** Action buttons to display */
+  actions: IActionBarAction[];
+  /** Timeout configuration (optional) */
+  timeout?: {
+    /** Duration in milliseconds before auto-triggering default action */
+    duration: number;
+    /** ID of the action to auto-trigger when timeout expires */
+    defaultActionId: string;
+  };
+  /** Whether to show a dismiss (X) button */
+  dismissible?: boolean;
+}
+
+/**
+ * Result returned when an action bar is resolved
+ */
+export interface IActionBarResult {
+  /** ID of the action that was triggered */
+  actionId: string;
+  /** Whether the action was triggered by timeout (true) or user click (false) */
+  timedOut: boolean;
+}
+
+/**
+ * Internal queue item for pending action bars
+ */
+export interface IActionBarQueueItem {
+  options: IActionBarOptions;
+  resolve: (result: IActionBarResult) => void;
+}

ts_web/elements/dees-actionbar/dees-actionbar.ts

@@ -0,0 +1,514 @@
+import {
+  customElement,
+  DeesElement,
+  type TemplateResult,
+  html,
+  css,
+  state,
+  cssManager,
+} from '@design.estate/dees-element';
+import { themeDefaultStyles } from '../00theme.js';
+import '../dees-icon/dees-icon.js';
+import type {
+  IActionBarOptions,
+  IActionBarResult,
+  IActionBarQueueItem,
+  IActionBarAction,
+} from './actionbar.interfaces.js';
+
+declare global {
+  interface HTMLElementTagNameMap {
+    'dees-actionbar': DeesActionbar;
+  }
+}
+
+@customElement('dees-actionbar')
+export class DeesActionbar extends DeesElement {
+  // STATIC
+  public static demo = () => {
+    const getActionbar = (e: Event) => {
+      const button = e.currentTarget as HTMLElement;
+      const container = button.closest('.demo-container');
+      return container?.querySelector('dees-actionbar') as DeesActionbar | null;
+    };
+
+    const showActionBar = async (e: Event) => {
+      const actionbar = getActionbar(e);
+      if (!actionbar) return;
+      const result = await actionbar.show({
+        message: 'File changed externally. Reload?',
+        type: 'warning',
+        icon: 'lucide:alertTriangle',
+        actions: [
+          { id: 'reload', label: 'Reload', primary: true },
+          { id: 'ignore', label: 'Ignore' },
+        ],
+        timeout: { duration: 5000, defaultActionId: 'reload' },
+        dismissible: true,
+      });
+      console.log('Action bar result:', result);
+    };
+
+    const showErrorBar = async (e: Event) => {
+      const actionbar = getActionbar(e);
+      if (!actionbar) return;
+      const result = await actionbar.show({
+        message: 'Process failed with exit code 1',
+        type: 'error',
+        icon: 'lucide:xCircle',
+        actions: [
+          { id: 'retry', label: 'Retry', primary: true },
+          { id: 'dismiss', label: 'Dismiss' },
+        ],
+        timeout: { duration: 10000, defaultActionId: 'dismiss' },
+      });
+      console.log('Error bar result:', result);
+    };
+
+    const showQuestionBar = async (e: Event) => {
+      const actionbar = getActionbar(e);
+      if (!actionbar) return;
+      const result = await actionbar.show({
+        message: 'Save changes before closing?',
+        type: 'question',
+        icon: 'lucide:helpCircle',
+        actions: [
+          { id: 'save', label: 'Save', primary: true },
+          { id: 'discard', label: 'Discard' },
+          { id: 'cancel', label: 'Cancel' },
+        ],
+      });
+      console.log('Question bar result:', result);
+    };
+
+    return html`
+      <style>
+        .demo-container {
+          display: flex;
+          flex-direction: column;
+          height: 300px;
+          border: 1px solid #333;
+          border-radius: 8px;
+          overflow: hidden;
+        }
+        .demo-content {
+          flex: 1;
+          padding: 16px;
+          display: flex;
+          gap: 8px;
+          align-items: flex-start;
+        }
+      </style>
+      <div class="demo-container">
+        <div class="demo-content">
+          <dees-button @click=${showActionBar}>Warning</dees-button>
+          <dees-button @click=${showErrorBar}>Error</dees-button>
+          <dees-button @click=${showQuestionBar}>Question</dees-button>
+        </div>
+        <dees-actionbar></dees-actionbar>
+      </div>
+    `;
+  };
+
+  // Queue of pending action bars
+  private queue: IActionBarQueueItem[] = [];
+
+  // Current active bar state
+  @state() accessor currentBar: IActionBarOptions | null = null;
+  @state() accessor timeRemaining: number = 0;
+  @state() accessor progressPercent: number = 100;
+  @state() accessor isVisible: boolean = false;
+
+  // Timeout handling
+  private timeoutInterval: ReturnType<typeof setInterval> | null = null;
+  private currentResolve: ((result: IActionBarResult) => void) | null = null;
+
+  public static styles = [
+    themeDefaultStyles,
+    cssManager.defaultStyles,
+    css`
+      :host {
+        display: block;
+      }
+
+      .actionbar-item {
+        display: grid;
+        grid-template-rows: 0fr;
+        transition: grid-template-rows 0.2s ease-out;
+        background: ${cssManager.bdTheme('hsl(0 0% 96%)', 'hsl(0 0% 12%)')};
+        border-top: 1px solid ${cssManager.bdTheme('hsl(0 0% 88%)', 'hsl(0 0% 20%)')};
+      }
+
+      :host(.visible) .actionbar-item {
+        grid-template-rows: 1fr;
+      }
+
+      .actionbar-content {
+        overflow: hidden;
+        min-height: 0;
+        opacity: 0;
+        transition: opacity 0.2s ease-out;
+      }
+
+      :host(.visible) .actionbar-content {
+        opacity: 1;
+      }
+
+      .progress-bar {
+        height: 3px;
+        background: ${cssManager.bdTheme('hsl(0 0% 90%)', 'hsl(0 0% 18%)')};
+        overflow: hidden;
+      }
+
+      .progress-bar-fill {
+        height: 100%;
+        background: ${cssManager.bdTheme('hsl(210 100% 50%)', 'hsl(210 100% 60%)')};
+        transition: width 0.1s linear;
+      }
+
+      .progress-bar-fill.warning {
+        background: ${cssManager.bdTheme('hsl(38 92% 50%)', 'hsl(38 92% 55%)')};
+      }
+
+      .progress-bar-fill.error {
+        background: ${cssManager.bdTheme('hsl(0 70% 50%)', 'hsl(0 70% 55%)')};
+      }
+
+      .progress-bar-fill.question {
+        background: ${cssManager.bdTheme('hsl(270 70% 50%)', 'hsl(270 70% 60%)')};
+      }
+
+      .content {
+        display: flex;
+        align-items: center;
+        padding: 8px 12px;
+        gap: 12px;
+        min-height: 32px;
+      }
+
+      .message-section {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        flex: 1;
+        min-width: 0;
+      }
+
+      .message-icon {
+        flex-shrink: 0;
+        color: ${cssManager.bdTheme('hsl(0 0% 40%)', 'hsl(0 0% 60%)')};
+      }
+
+      .message-icon.info {
+        color: ${cssManager.bdTheme('hsl(210 100% 45%)', 'hsl(210 100% 60%)')};
+      }
+
+      .message-icon.warning {
+        color: ${cssManager.bdTheme('hsl(38 92% 45%)', 'hsl(38 92% 55%)')};
+      }
+
+      .message-icon.error {
+        color: ${cssManager.bdTheme('hsl(0 70% 50%)', 'hsl(0 70% 55%)')};
+      }
+
+      .message-icon.question {
+        color: ${cssManager.bdTheme('hsl(270 70% 50%)', 'hsl(270 70% 60%)')};
+      }
+
+      .message-text {
+        font-size: 13px;
+        color: ${cssManager.bdTheme('hsl(0 0% 20%)', 'hsl(0 0% 85%)')};
+        white-space: nowrap;
+        overflow: hidden;
+        text-overflow: ellipsis;
+      }
+
+      .actions-section {
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        flex-shrink: 0;
+      }
+
+      .action-button {
+        display: flex;
+        align-items: center;
+        gap: 4px;
+        padding: 4px 10px;
+        border-radius: 4px;
+        font-size: 12px;
+        font-weight: 500;
+        cursor: pointer;
+        border: 1px solid transparent;
+        transition: all 0.15s ease;
+        white-space: nowrap;
+      }
+
+      .action-button.secondary {
+        background: transparent;
+        color: ${cssManager.bdTheme('hsl(0 0% 30%)', 'hsl(0 0% 70%)')};
+        border-color: ${cssManager.bdTheme('hsl(0 0% 80%)', 'hsl(0 0% 30%)')};
+      }
+
+      .action-button.secondary:hover {
+        background: ${cssManager.bdTheme('hsl(0 0% 92%)', 'hsl(0 0% 18%)')};
+      }
+
+      .action-button.primary {
+        background: ${cssManager.bdTheme('hsl(210 100% 50%)', 'hsl(210 100% 55%)')};
+        color: white;
+      }
+
+      .action-button.primary:hover {
+        background: ${cssManager.bdTheme('hsl(210 100% 45%)', 'hsl(210 100% 50%)')};
+      }
+
+      .action-button.primary.warning {
+        background: ${cssManager.bdTheme('hsl(38 92% 45%)', 'hsl(38 92% 50%)')};
+      }
+
+      .action-button.primary.warning:hover {
+        background: ${cssManager.bdTheme('hsl(38 92% 40%)', 'hsl(38 92% 45%)')};
+      }
+
+      .action-button.primary.error {
+        background: ${cssManager.bdTheme('hsl(0 70% 50%)', 'hsl(0 70% 55%)')};
+      }
+
+      .action-button.primary.error:hover {
+        background: ${cssManager.bdTheme('hsl(0 70% 45%)', 'hsl(0 70% 50%)')};
+      }
+
+      .action-button.primary.question {
+        background: ${cssManager.bdTheme('hsl(270 70% 50%)', 'hsl(270 70% 55%)')};
+      }
+
+      .action-button.primary.question:hover {
+        background: ${cssManager.bdTheme('hsl(270 70% 45%)', 'hsl(270 70% 50%)')};
+      }
+
+      .countdown {
+        font-size: 11px;
+        opacity: 0.8;
+        margin-left: 2px;
+      }
+
+      .dismiss-button {
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        width: 20px;
+        height: 20px;
+        border-radius: 4px;
+        cursor: pointer;
+        color: ${cssManager.bdTheme('hsl(0 0% 50%)', 'hsl(0 0% 50%)')};
+        transition: all 0.15s ease;
+      }
+
+      .dismiss-button:hover {
+        background: ${cssManager.bdTheme('hsl(0 0% 88%)', 'hsl(0 0% 22%)')};
+        color: ${cssManager.bdTheme('hsl(0 0% 30%)', 'hsl(0 0% 70%)')};
+      }
+    `,
+  ];
+
+  public render(): TemplateResult {
+    const bar = this.currentBar;
+    const type = bar?.type || 'info';
+    const hasTimeout = bar?.timeout && this.timeRemaining > 0;
+
+    // ALWAYS render wrapper - required for grid animation to work
+    return html`
+      <div class="actionbar-item">
+        <div class="actionbar-content">
+          ${bar ? html`
+            ${hasTimeout ? html`
+              <div class="progress-bar">
+                <div
+                  class="progress-bar-fill ${type}"
+                  style="width: ${this.progressPercent}%"
+                ></div>
+              </div>
+            ` : ''}
+            <div class="content">
+              <div class="message-section">
+                ${bar.icon ? html`
+                  <dees-icon
+                    class="message-icon ${type}"
+                    .icon=${bar.icon}
+                    iconSize="16"
+                  ></dees-icon>
+                ` : ''}
+                <span class="message-text">${bar.message}</span>
+              </div>
+              <div class="actions-section">
+                ${bar.actions.map(action => this.renderActionButton(action, bar, hasTimeout))}
+                ${bar.dismissible ? html`
+                  <div
+                    class="dismiss-button"
+                    @click=${() => this.handleDismiss()}
+                    title="Dismiss"
+                  >
+                    <dees-icon .icon=${'lucide:x'} iconSize="14"></dees-icon>
+                  </div>
+                ` : ''}
+              </div>
+            </div>
+          ` : ''}
+        </div>
+      </div>
+    `;
+  }
+
+  private renderActionButton(
+    action: IActionBarAction,
+    bar: IActionBarOptions,
+    hasTimeout: boolean | undefined
+  ): TemplateResult {
+    const isPrimary = action.primary;
+    const type = bar.type || 'info';
+    const isDefaultAction = bar.timeout?.defaultActionId === action.id;
+    const showCountdown = hasTimeout && isDefaultAction;
+    const seconds = Math.ceil(this.timeRemaining / 1000);
+
+    return html`
+      <button
+        class="action-button ${isPrimary ? `primary ${type}` : 'secondary'}"
+        @click=${() => this.handleAction(action.id, false)}
+      >
+        ${action.icon ? html`
+          <dees-icon .icon=${action.icon} iconSize="12"></dees-icon>
+        ` : ''}
+        <span>${action.label}</span>
+        ${showCountdown ? html`
+          <span class="countdown">(${seconds}s)</span>
+        ` : ''}
+      </button>
+    `;
+  }
+
+  // ========== Public API ==========
+
+  /**
+   * Show an action bar with the given options.
+   * Returns a promise that resolves when an action is taken.
+   */
+  public async show(options: IActionBarOptions): Promise<IActionBarResult> {
+    return new Promise((resolve) => {
+      // Add to queue
+      this.queue.push({ options, resolve });
+
+      // If no current bar, process queue
+      if (!this.currentBar) {
+        this.processQueue();
+      }
+    });
+  }
+
+  /**
+   * Dismiss the current action bar without triggering any action.
+   */
+  public dismiss(): void {
+    this.handleDismiss();
+  }
+
+  /**
+   * Clear all pending action bars in the queue.
+   */
+  public clearQueue(): void {
+    // Resolve all queued items with dismiss
+    for (const item of this.queue) {
+      item.resolve({ actionId: 'dismissed', timedOut: false });
+    }
+    this.queue = [];
+  }
+
+  // ========== Private Methods ==========
+
+  /**
+   * Hide the current actionbar with animation.
+   * Removes visible class first to trigger CSS transition, then clears content after animation.
+   */
+  private async hideCurrentBar(): Promise<void> {
+    // Remove visible class to start close animation
+    this.classList.remove('visible');
+    this.isVisible = false;
+
+    // Wait for animation to complete (200ms transition + buffer)
+    await new Promise(resolve => setTimeout(resolve, 220));
+
+    // Now safe to clear content
+    this.currentBar = null;
+    this.currentResolve = null;
+  }
+
+  private async processQueue(): Promise<void> {
+    if (this.queue.length === 0) {
+      // Hide with animation - don't await, let it run async
+      this.hideCurrentBar();
+      return;
+    }
+
+    const item = this.queue.shift()!;
+    this.currentBar = item.options;
+    this.currentResolve = item.resolve;
+    this.isVisible = true;
+
+    // Wait for Lit render, then add class on next frame to trigger animation
+    await this.updateComplete;
+    requestAnimationFrame(() => {
+      this.classList.add('visible');
+    });
+
+    // Setup timeout if configured
+    if (item.options.timeout) {
+      this.startTimeout(item.options.timeout.duration, item.options.timeout.defaultActionId);
+    }
+  }
+
+  private startTimeout(duration: number, defaultActionId: string): void {
+    this.timeRemaining = duration;
+    this.progressPercent = 100;
+
+    const startTime = Date.now();
+    const updateInterval = 50; // Update every 50ms for smooth animation
+
+    this.timeoutInterval = setInterval(() => {
+      const elapsed = Date.now() - startTime;
+      this.timeRemaining = Math.max(0, duration - elapsed);
+      this.progressPercent = (this.timeRemaining / duration) * 100;
+
+      if (this.timeRemaining <= 0) {
+        this.clearTimeoutInterval();
+        this.handleAction(defaultActionId, true);
+      }
+    }, updateInterval);
+  }
+
+  private clearTimeoutInterval(): void {
+    if (this.timeoutInterval) {
+      clearInterval(this.timeoutInterval);
+      this.timeoutInterval = null;
+    }
+  }
+
+  private handleAction(actionId: string, timedOut: boolean): void {
+    this.clearTimeoutInterval();
+
+    if (this.currentResolve) {
+      this.currentResolve({ actionId, timedOut });
+    }
+
+    // Process next item in queue
+    this.processQueue();
+  }
+
+  private handleDismiss(): void {
+    this.handleAction('dismissed', false);
+  }
+
+  public async disconnectedCallback(): Promise<void> {
+    await super.disconnectedCallback();
+    this.clearTimeoutInterval();
+  }
+}

ts_web/elements/dees-actionbar/index.ts

@@ -0,0 +1,2 @@
+export * from './dees-actionbar.js';
+export * from './actionbar.interfaces.js';

ts_web/elements/index.ts

@@ -14,6 +14,7 @@ export * from './00group-runtime/index.js';
 export * from './00group-simple/index.js';
 
 // Standalone Components
+export * from './dees-actionbar/index.js';
 export * from './dees-badge/index.js';
 export * from './dees-chips/index.js';
 export * from './dees-contextmenu/index.js';

ts_web/elements/interfaces/appconfig.ts

@@ -2,9 +2,10 @@ import type { TemplateResult } from '@design.estate/dees-element';
 import type { IAppBarMenuItem } from './appbarmenuitem.js';
 import type { IMenuItem } from './tab.js';
 import type { IMenuGroup } from './menugroup.js';
+import type { ISecondaryMenuGroup, ISecondaryMenuItem } from './secondarymenu.js';
 
 // Forward declaration for circular reference
-export type TDeesAppuiBase = HTMLElement & {
+export type TDeesAppui = HTMLElement & {
   setAppBarMenus: (menus: IAppBarMenuItem[]) => void;
   updateAppBarMenu: (name: string, update: Partial<IAppBarMenuItem>) => void;
   setBreadcrumbs: (breadcrumbs: string | string[]) => void;
@@ -25,9 +26,9 @@ export type TDeesAppuiBase = HTMLElement & {
   setContentTabsAutoHide: (enabled: boolean, threshold?: number) => void;
   setMainMenuBadge: (tabKey: string, badge: string | number) => void;
   clearMainMenuBadge: (tabKey: string) => void;
-  setSecondaryMenu: (config: { heading?: string; groups: IMenuGroup[] }) => void;
-  updateSecondaryMenuGroup: (groupName: string, update: Partial<IMenuGroup>) => void;
-  addSecondaryMenuItem: (groupName: string, item: IMenuGroup['items'][0]) => void;
+  setSecondaryMenu: (config: { heading?: string; groups: ISecondaryMenuGroup[] }) => void;
+  updateSecondaryMenuGroup: (groupName: string, update: Partial<ISecondaryMenuGroup>) => void;
+  addSecondaryMenuItem: (groupName: string, item: ISecondaryMenuItem) => void;
   setSecondaryMenuSelection: (itemKey: string) => void;
   clearSecondaryMenu: () => void;
   setContentTabs: (tabs: IMenuItem[]) => void;
@@ -36,6 +37,9 @@ export type TDeesAppuiBase = HTMLElement & {
   selectContentTab: (tabKey: string) => void;
   getSelectedContentTab: () => IMenuItem | undefined;
   activityLog: IActivityLogAPI;
+  setActivityLogVisible: (visible: boolean) => void;
+  toggleActivityLog: () => void;
+  getActivityLogVisible: () => boolean;
   navigateToView: (viewId: string, params?: Record<string, string>) => Promise<boolean>;
   getCurrentView: () => IViewDefinition | undefined;
 };
@@ -92,8 +96,8 @@ export interface IActivityLogAPI {
  * View activation context passed to onActivate lifecycle hook
  */
 export interface IViewActivationContext {
-  /** Reference to the DeesAppuiBase instance */
-  appui: TDeesAppuiBase;
+  /** Reference to the DeesAppui instance */
+  appui: TDeesAppui;
   /** The view ID being activated */
   viewId: string;
   /** Route parameters if any */
@@ -136,7 +140,7 @@ export interface IViewDefinition {
     | (() => TemplateResult)
     | (() => Promise<string | (new () => HTMLElement) | (() => TemplateResult)>);
   /** Secondary menu items specific to this view */
-  secondaryMenu?: IMenuGroup[];
+  secondaryMenu?: ISecondaryMenuGroup[];
   /** Content tabs specific to this view */
   contentTabs?: IMenuItem[];
   /** Optional route path (defaults to id). Supports params like 'settings/:section' */
@@ -208,7 +212,7 @@ export interface IActivityLogConfig {
 }
 
 /**
- * Main unified configuration interface for dees-appui-base
+ * Main unified configuration interface for dees-appui
  */
 export interface IAppConfig {
   /** Application branding */

ts_web/elements/interfaces/index.ts

@@ -2,3 +2,4 @@ export * from './tab.js';
 export * from './appbarmenuitem.js';
 export * from './menugroup.js';
 export * from './appconfig.js';
+export * from './secondarymenu.js';

ts_web/elements/interfaces/secondarymenu.ts

@@ -0,0 +1,93 @@
+/**
+ * Secondary Menu Item Types
+ *
+ * Supports 8 item types:
+ * 1. Tab - selectable, stays highlighted (existing behavior)
+ * 2. Action - executes without selection (primary = blue)
+ * 3. Danger Action - red styling with optional confirmation
+ * 4. Filter - checkbox toggle, emits immediately
+ * 5. Multi-Filter - collapsible box with multiple checkboxes
+ * 6. Divider - visual separator
+ * 7. Header - non-interactive label
+ * 8. Link - opens URL
+ */
+
+// Base properties shared by interactive items
+export interface ISecondaryMenuItemBase {
+  key: string;
+  iconName?: string;
+  disabled?: boolean;
+  hidden?: boolean;
+}
+
+// 1. Tab - existing behavior (selectable, stays highlighted)
+export interface ISecondaryMenuItemTab extends ISecondaryMenuItemBase {
+  type?: 'tab'; // default if omitted for backward compatibility
+  action: () => void;
+  badge?: string | number;
+  badgeVariant?: 'default' | 'success' | 'warning' | 'error';
+}
+
+// 2 & 3. Action - executes without selection
+export interface ISecondaryMenuItemAction extends ISecondaryMenuItemBase {
+  type: 'action';
+  action: () => void | Promise<void>;
+  variant?: 'primary' | 'danger'; // primary = blue (default), danger = red
+  confirmMessage?: string; // Shows confirmation dialog before executing
+}
+
+// 4. Single filter toggle
+export interface ISecondaryMenuItemFilter extends ISecondaryMenuItemBase {
+  type: 'filter';
+  active: boolean;
+  onToggle: (active: boolean) => void;
+}
+
+// 5. Multi-select filter group (collapsible)
+export interface ISecondaryMenuItemMultiFilter extends ISecondaryMenuItemBase {
+  type: 'multiFilter';
+  collapsed?: boolean; // Accordion state
+  options: Array<{
+    key: string;
+    label: string;
+    checked: boolean;
+    iconName?: string;
+  }>;
+  onChange: (selectedKeys: string[]) => void;
+}
+
+// 6. Divider
+export interface ISecondaryMenuItemDivider {
+  type: 'divider';
+}
+
+// 7. Header/Label
+export interface ISecondaryMenuItemHeader {
+  type: 'header';
+  label: string;
+}
+
+// 8. External link
+export interface ISecondaryMenuItemLink extends ISecondaryMenuItemBase {
+  type: 'link';
+  href: string;
+  external?: boolean; // Opens in new tab (default: true if href starts with http)
+}
+
+// Union type for all secondary menu items
+export type ISecondaryMenuItem =
+  | ISecondaryMenuItemTab
+  | ISecondaryMenuItemAction
+  | ISecondaryMenuItemFilter
+  | ISecondaryMenuItemMultiFilter
+  | ISecondaryMenuItemDivider
+  | ISecondaryMenuItemHeader
+  | ISecondaryMenuItemLink;
+
+// Group interface for secondary menu
+export interface ISecondaryMenuGroup {
+  name: string;
+  iconName?: string;
+  collapsed?: boolean;
+  items: ISecondaryMenuItem[];
+}

ts_web/services/DeesServiceLibLoader.ts

@@ -0,0 +1,285 @@
+import { CDN_BASE, CDN_VERSIONS } from './versions.js';
+
+// Type imports (no runtime overhead)
+import type { Terminal, ITerminalOptions } from 'xterm';
+import type { FitAddon } from 'xterm-addon-fit';
+import type { HLJSApi } from 'highlight.js';
+import type ApexChartsType from 'apexcharts';
+import type { Editor, EditorOptions } from '@tiptap/core';
+import type { StarterKitOptions } from '@tiptap/starter-kit';
+import type { UnderlineOptions } from '@tiptap/extension-underline';
+import type { TextAlignOptions } from '@tiptap/extension-text-align';
+import type { LinkOptions } from '@tiptap/extension-link';
+
+/**
+ * Bundle type for xterm and its addons
+ */
+export interface IXtermBundle {
+  Terminal: typeof Terminal;
+}
+
+/**
+ * Bundle type for xterm-addon-fit
+ */
+export interface IXtermFitAddonBundle {
+  FitAddon: typeof FitAddon;
+}
+
+/**
+ * Bundle type for Tiptap editor and extensions
+ */
+export interface ITiptapBundle {
+  Editor: typeof Editor;
+  StarterKit: { configure: (options?: Partial<StarterKitOptions>) => any };
+  Underline: { configure: (options?: Partial<UnderlineOptions>) => any };
+  TextAlign: { configure: (options?: Partial<TextAlignOptions>) => any };
+  Link: { configure: (options?: Partial<LinkOptions>) => any };
+  Typography: { configure: (options?: any) => any };
+}
+
+/**
+ * Singleton service for lazy-loading heavy libraries from CDN.
+ *
+ * This reduces initial bundle size by loading libraries only when needed.
+ * Libraries are cached after first load to avoid duplicate fetches.
+ *
+ * @example
+ * ```typescript
+ * const libLoader = DeesServiceLibLoader.getInstance();
+ * const xterm = await libLoader.loadXterm();
+ * const terminal = new xterm.Terminal({ ... });
+ * ```
+ */
+export class DeesServiceLibLoader {
+  private static instance: DeesServiceLibLoader;
+
+  // Cached library references
+  private xtermLib: IXtermBundle | null = null;
+  private xtermFitAddonLib: IXtermFitAddonBundle | null = null;
+  private highlightJsLib: HLJSApi | null = null;
+  private apexChartsLib: typeof ApexChartsType | null = null;
+  private tiptapLib: ITiptapBundle | null = null;
+
+  // Loading promises to prevent duplicate concurrent loads
+  private xtermLoadingPromise: Promise<IXtermBundle> | null = null;
+  private xtermFitAddonLoadingPromise: Promise<IXtermFitAddonBundle> | null = null;
+  private highlightJsLoadingPromise: Promise<HLJSApi> | null = null;
+  private apexChartsLoadingPromise: Promise<typeof ApexChartsType> | null = null;
+  private tiptapLoadingPromise: Promise<ITiptapBundle> | null = null;
+
+  private constructor() {}
+
+  /**
+   * Get the singleton instance of DeesServiceLibLoader
+   */
+  public static getInstance(): DeesServiceLibLoader {
+    if (!DeesServiceLibLoader.instance) {
+      DeesServiceLibLoader.instance = new DeesServiceLibLoader();
+    }
+    return DeesServiceLibLoader.instance;
+  }
+
+  /**
+   * Load xterm terminal emulator from CDN
+   * @returns Promise resolving to xterm module with Terminal class
+   */
+  public async loadXterm(): Promise<IXtermBundle> {
+    if (this.xtermLib) {
+      return this.xtermLib;
+    }
+
+    if (this.xtermLoadingPromise) {
+      return this.xtermLoadingPromise;
+    }
+
+    this.xtermLoadingPromise = (async () => {
+      const url = `${CDN_BASE}/xterm@${CDN_VERSIONS.xterm}/+esm`;
+      const module = await import(/* @vite-ignore */ url);
+
+      // Also load and inject xterm CSS
+      await this.injectXtermStyles();
+
+      this.xtermLib = {
+        Terminal: module.Terminal,
+      };
+      return this.xtermLib;
+    })();
+
+    return this.xtermLoadingPromise;
+  }
+
+  /**
+   * Load xterm-addon-fit from CDN
+   * @returns Promise resolving to FitAddon class
+   */
+  public async loadXtermFitAddon(): Promise<IXtermFitAddonBundle> {
+    if (this.xtermFitAddonLib) {
+      return this.xtermFitAddonLib;
+    }
+
+    if (this.xtermFitAddonLoadingPromise) {
+      return this.xtermFitAddonLoadingPromise;
+    }
+
+    this.xtermFitAddonLoadingPromise = (async () => {
+      const url = `${CDN_BASE}/xterm-addon-fit@${CDN_VERSIONS.xtermAddonFit}/+esm`;
+      const module = await import(/* @vite-ignore */ url);
+
+      this.xtermFitAddonLib = {
+        FitAddon: module.FitAddon,
+      };
+      return this.xtermFitAddonLib;
+    })();
+
+    return this.xtermFitAddonLoadingPromise;
+  }
+
+  /**
+   * Inject xterm CSS styles into the document head
+   */
+  private async injectXtermStyles(): Promise<void> {
+    const styleId = 'xterm-cdn-styles';
+    if (document.getElementById(styleId)) {
+      return; // Already injected
+    }
+
+    const cssUrl = `${CDN_BASE}/xterm@${CDN_VERSIONS.xterm}/css/xterm.css`;
+    const response = await fetch(cssUrl);
+    const cssText = await response.text();
+
+    const style = document.createElement('style');
+    style.id = styleId;
+    style.textContent = cssText;
+    document.head.appendChild(style);
+  }
+
+  /**
+   * Load highlight.js syntax highlighter from CDN
+   * @returns Promise resolving to highlight.js API
+   */
+  public async loadHighlightJs(): Promise<HLJSApi> {
+    if (this.highlightJsLib) {
+      return this.highlightJsLib;
+    }
+
+    if (this.highlightJsLoadingPromise) {
+      return this.highlightJsLoadingPromise;
+    }
+
+    this.highlightJsLoadingPromise = (async () => {
+      const url = `${CDN_BASE}/highlight.js@${CDN_VERSIONS.highlightJs}/+esm`;
+      const module = await import(/* @vite-ignore */ url);
+
+      this.highlightJsLib = module.default;
+      return this.highlightJsLib;
+    })();
+
+    return this.highlightJsLoadingPromise;
+  }
+
+  /**
+   * Load ApexCharts charting library from CDN
+   * @returns Promise resolving to ApexCharts constructor
+   */
+  public async loadApexCharts(): Promise<typeof ApexChartsType> {
+    if (this.apexChartsLib) {
+      return this.apexChartsLib;
+    }
+
+    if (this.apexChartsLoadingPromise) {
+      return this.apexChartsLoadingPromise;
+    }
+
+    this.apexChartsLoadingPromise = (async () => {
+      const url = `${CDN_BASE}/apexcharts@${CDN_VERSIONS.apexcharts}/+esm`;
+      const module = await import(/* @vite-ignore */ url);
+
+      this.apexChartsLib = module.default;
+      return this.apexChartsLib;
+    })();
+
+    return this.apexChartsLoadingPromise;
+  }
+
+  /**
+   * Load Tiptap rich text editor and extensions from CDN
+   * @returns Promise resolving to Tiptap bundle with Editor and extensions
+   */
+  public async loadTiptap(): Promise<ITiptapBundle> {
+    if (this.tiptapLib) {
+      return this.tiptapLib;
+    }
+
+    if (this.tiptapLoadingPromise) {
+      return this.tiptapLoadingPromise;
+    }
+
+    this.tiptapLoadingPromise = (async () => {
+      const version = CDN_VERSIONS.tiptap;
+
+      // Load all Tiptap modules in parallel
+      const [
+        coreModule,
+        starterKitModule,
+        underlineModule,
+        textAlignModule,
+        linkModule,
+        typographyModule,
+      ] = await Promise.all([
+        import(/* @vite-ignore */ `${CDN_BASE}/@tiptap/core@${version}/+esm`),
+        import(/* @vite-ignore */ `${CDN_BASE}/@tiptap/starter-kit@${version}/+esm`),
+        import(/* @vite-ignore */ `${CDN_BASE}/@tiptap/extension-underline@${version}/+esm`),
+        import(/* @vite-ignore */ `${CDN_BASE}/@tiptap/extension-text-align@${version}/+esm`),
+        import(/* @vite-ignore */ `${CDN_BASE}/@tiptap/extension-link@${version}/+esm`),
+        import(/* @vite-ignore */ `${CDN_BASE}/@tiptap/extension-typography@${version}/+esm`),
+      ]);
+
+      this.tiptapLib = {
+        Editor: coreModule.Editor,
+        StarterKit: starterKitModule.default || starterKitModule.StarterKit,
+        Underline: underlineModule.default || underlineModule.Underline,
+        TextAlign: textAlignModule.default || textAlignModule.TextAlign,
+        Link: linkModule.default || linkModule.Link,
+        Typography: typographyModule.default || typographyModule.Typography,
+      };
+
+      return this.tiptapLib;
+    })();
+
+    return this.tiptapLoadingPromise;
+  }
+
+  /**
+   * Preload multiple libraries in parallel
+   * Useful for warming the cache before components are rendered
+   */
+  public async preloadAll(): Promise<void> {
+    await Promise.all([
+      this.loadXterm(),
+      this.loadXtermFitAddon(),
+      this.loadHighlightJs(),
+      this.loadApexCharts(),
+      this.loadTiptap(),
+    ]);
+  }
+
+  /**
+   * Check if a specific library is already loaded
+   */
+  public isLoaded(library: 'xterm' | 'xtermFitAddon' | 'highlightJs' | 'apexCharts' | 'tiptap'): boolean {
+    switch (library) {
+      case 'xterm':
+        return this.xtermLib !== null;
+      case 'xtermFitAddon':
+        return this.xtermFitAddonLib !== null;
+      case 'highlightJs':
+        return this.highlightJsLib !== null;
+      case 'apexCharts':
+        return this.apexChartsLib !== null;
+      case 'tiptap':
+        return this.tiptapLib !== null;
+      default:
+        return false;
+    }
+  }
+}

ts_web/services/index.ts

@@ -0,0 +1,3 @@
+export { DeesServiceLibLoader } from './DeesServiceLibLoader.js';
+export type { IXtermBundle, IXtermFitAddonBundle, ITiptapBundle } from './DeesServiceLibLoader.js';
+export { CDN_BASE, CDN_VERSIONS } from './versions.js';

ts_web/services/versions.ts

@@ -0,0 +1,17 @@
+/**
+ * CDN versions for lazy-loaded libraries.
+ * Keep these in sync with package.json for type compatibility.
+ */
+export const CDN_VERSIONS = {
+  xterm: '5.3.0',
+  xtermAddonFit: '0.8.0',
+  highlightJs: '11.11.1',
+  apexcharts: '5.3.6',
+  tiptap: '2.23.0',
+  fontawesome: '7.1.0',
+} as const;
+
+/**
+ * Base CDN URL for jsdelivr ESM imports
+ */
+export const CDN_BASE = 'https://cdn.jsdelivr.net/npm';

tsconfig.json

@@ -5,7 +5,7 @@
     "moduleResolution": "NodeNext",
     "esModuleInterop": true,
     "verbatimModuleSyntax": true,
-    "skipLibCheck": true
+    "skipLibCheck": false
   },
   "exclude": [
     "dist_*/**/*.d.ts"