refactor: Extract web-templates package and unify build/pack workflow

Moves export-html and insight templates from cli/assets to a new
dedicated web-templates package. Updates Dockerfile and build scripts
to use consolidated bundle/prepare:package/pack workflow.

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

packages/cli/src/ui/utils/export/formatters/html.ts

@@ -5,7 +5,7 @@
  */
 
 import type { ExportSessionData } from '../types.js';
-import { HTML_TEMPLATE } from './htmlTemplate.js';
+import { EXPORT_HTML_TEMPLATE as HTML_TEMPLATE } from '@qwen-code/web-templates';
 
 /**
  * Escapes JSON for safe embedding in HTML.