feat(demo): add DeesDemoWrapper component for enhanced demo element handling

ts_demotools/demotools.ts

@@ -0,0 +1,41 @@
+import { DeesElement, customElement, html, css, property, type TemplateResult } from '@design.estate/dees-element';
+
+@customElement('dees-demowrapper')
+export class DeesDemoWrapper extends DeesElement {
+  @property({ attribute: false })
+  public runAfterRender: (element: HTMLElement) => void | Promise<void>;
+
+  public static styles = [
+    css`
+      :host {
+        display: contents;
+      }
+    `
+  ];
+
+  public render(): TemplateResult {
+    return html`
+      <slot></slot>
+    `;
+  }
+
+  public async firstUpdated() {
+    await this.updateComplete;
+    
+    // Wait a bit for slotted content to render
+    await new Promise(resolve => setTimeout(resolve, 50));
+    
+    // Find the first element child (excluding text nodes)
+    const slottedElements = this.children;
+    if (slottedElements.length > 0 && this.runAfterRender) {
+      const firstElement = slottedElements[0] as HTMLElement;
+      
+      // Call the runAfterRender function with the element
+      try {
+        await this.runAfterRender(firstElement);
+      } catch (error) {
+        console.error('Error in runAfterRender:', error);
+      }
+    }
+  }
+}

ts_demotools/index.ts

@@ -0,0 +1 @@
+export * from './demotools.js';

ts_demotools/plugins.ts

@@ -1 +1,5 @@
-import {} from '@design.estate/dees-element';
+import * as deesElement from '@design.estate/dees-element';
+
+export {
+  deesElement
+};

ts_demotools/tspublish.json

@@ -0,0 +1,3 @@
+{
+  "order": 2
+}