feat(ccw): Add count-based memory update strategy and fix MCP card click

- Add count-based update strategy for memory hooks (threshold-based triggering)
- Add threshold config field (default: 10, range: 3-50)
- Add i18n translations for count-based strategy (EN/ZH)
- Fix MCP card click not responding due to HTML entity encoding in JSON
- Add unescapeHtml() utility function for decoding HTML entities
- Move stopPropagation from container div to individual buttons
- Change CCW MCP install to use cmd /c npx -y format for Windows

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ccw/src/templates/dashboard-js/components/mcp-manager.js

@@ -930,8 +930,8 @@ function selectCcwTools(type) {
 // Build CCW Tools config with selected tools
 function buildCcwToolsConfig(selectedTools) {
   const config = {
-    command: "npx",
-    args: ["-y", "ccw-mcp"]
+    command: "cmd",
+    args: ["/c", "npx", "-y", "ccw-mcp"]
   };
 
   // Add env if not all tools or not default 4 core tools