feat: Implement dees-statsgrid in DCRouter UI for enhanced stats visualization

- Added new readme.statsgrid.md outlining the implementation plan for dees-statsgrid component.
- Replaced custom stats cards in ops-view-overview.ts and ops-view-network.ts with dees-statsgrid for better visualization.
- Introduced consistent color scheme for success, warning, error, and info states.
- Enhanced interactive features including click actions, context menus, and real-time updates.
- Developed ops-view-emails.ts for email management with features like composing, searching, and viewing emails.
- Integrated mock data generation for emails and network requests to facilitate testing.
- Added responsive design elements and improved UI consistency across components.

readme.statsgrid.md

@@ -0,0 +1,46 @@
+# Plan: Implement dees-statsgrid in DCRouter UI
+
+Command to reread CLAUDE.md: `Read /home/centraluser/eu.central.ingress-2/CLAUDE.md`
+
+## Overview
+Replace the current stats cards with the new dees-statsgrid component from @design.estate/dees-catalog for better visualization and consistency.
+
+## Implementation Plan
+
+### 1. Update Overview View (`ops-view-overview.ts`)
+- Replace the custom stats cards with dees-statsgrid
+- Use appropriate tile types for different metrics:
+  - `gauge` for CPU and Memory usage
+  - `number` for Active Connections, Total Requests, etc.
+  - `trend` for time-series data like requests over time
+
+### 2. Update Network View (`ops-view-network.ts`)
+- Replace the current stats cards section with dees-statsgrid
+- Configure tiles for:
+  - Active Connections (number)
+  - Requests/sec (number with trend)
+  - Throughput In/Out (number with units)
+  - Protocol distribution (percentage)
+
+### 3. Create Consistent Color Scheme
+- Success/Normal: #22c55e (green)
+- Warning: #f59e0b (amber)
+- Error/Critical: #ef4444 (red)
+- Info: #3b82f6 (blue)
+
+### 4. Add Interactive Features
+- Click actions to show detailed views
+- Context menu for refresh, export, etc.
+- Real-time updates from metrics data
+
+### 5. Integration Points
+- Connect to existing appstate for data
+- Use MetricsManager data for real values
+- Update on the 1-second refresh interval
+
+## Benefits
+- Consistent UI component usage
+- Better visual hierarchy
+- Built-in responsive design
+- More visualization options (gauges, trends)
+- Reduced custom CSS maintenance