feat: Complete Google Search Console integration with Clerk authentication

- Add GSC API service with OAuth2 authentication
- Implement Clerk authentication for frontend and backend
- Add GSC login button and OAuth callback handling
- Create comprehensive GSC data fetching and caching
- Add authentication middleware for backend API protection
- Implement real-time GSC data integration in SEO dashboard
- Add user-specific GSC site management
- Include comprehensive logging and error handling
- Add TypeScript support and proper type definitions
- Create environment templates and setup documentation
- Update gitignore to exclude sensitive credential files

Features added:
- GSC OAuth2 authentication flow
- Real-time search analytics data
- Site list management
- Sitemap analysis
- User-specific data isolation
- Comprehensive error handling
- Authentication token management
- Popup-based OAuth flow
- Data caching and refresh mechanisms

Note: gsc_credentials.json should be created locally with your Google OAuth credentials

frontend/tsconfig.json

@@ -19,6 +19,7 @@
     "isolatedModules": true,
     "noEmit": true,
     "jsx": "react-jsx",
+    "jsxImportSource": "react",
     "typeRoots": [
       "./node_modules/@types",
       "./src/types"
@@ -26,5 +27,8 @@
   },
   "include": [
     "src"
+  ],
+  "exclude": [
+    "node_modules"
   ]
 }