Integrate complete Candidat platform with ASP.NET chatbot service

- Added Next.js frontend for candidate interviews
- Added Node.js backend with TypeScript and AI integration
- Added ASP.NET Core chatbot service for specialized AI conversations
- Added MySQL database with complete schema
- Added Nginx reverse proxy configuration
- Complete Docker Compose orchestration for all services
- Environment configuration for production, development, and Cloudflare
- Comprehensive documentation and setup instructions
- Flattened nested folder structures for clean organization
- Integrated chatbot service with fallback to direct AI calls

backend/.dockerignore

@@ -0,0 +1,14 @@
+node_modules
+npm-debug.log
+.git
+.gitignore
+README.md
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+.nyc_output
+coverage
+.DS_Store
+*.log