feat: enhance spec loading capabilities and add new categories

- Added support for loading specs from new categories: debug, test, review, and validation.
- Updated various agents and skills to include instructions for loading project context from the new spec categories.
- Introduced new spec documents for test conventions, review standards, and validation rules to improve project guidelines.
- Enhanced the frontend to support new watcher settings and display auto-watch status.
- Improved the spec index builder to accommodate new categories and ensure proper loading of specifications.

ccw/src/core/routes/codexlens-routes.ts

@@ -101,6 +101,8 @@ const CODEXLENS_ENV_DEFAULTS: Record<string, string> = {
   CODEXLENS_CODE_AWARE_CHUNKING: 'true',
   CODEXLENS_AST_CHUNKING: 'true',
   CODEXLENS_MAX_FILE_SIZE: '1000000',
+  CODEXLENS_AUTO_WATCH: 'false',
+  CODEXLENS_WATCHER_DEBOUNCE_MS: '1000',
   CODEXLENS_HNSW_EF: '150',
   CODEXLENS_HNSW_M: '32',
 };
@@ -147,7 +149,7 @@ function buildMcpServerConfig(savedEnv: Record<string, string>): Record<string,
 
   return {
     command: 'uvx',
-    args: ['--from', 'codexlens-search[mcp,ast]', 'codexlens-mcp'],
+    args: ['--from', 'codexlens-search[mcp,ast,watcher]', 'codexlens-mcp'],
     ...(Object.keys(filteredEnv).length > 0 ? { env: filteredEnv } : {}),
   };
 }