### 🔧 Technical Solution
- **API Key Authentication**: Migrated from Authelia session auth to X-N8N-API-KEY header authentication
- **CORS Resolution**: Eliminated preflight failures by removing authentication redirects from webhook endpoints
- **Error Handling**: Added graceful fallback for empty N8N responses with intelligent question generation
- **Type Safety**: Updated TypeScript interfaces for enhanced response format support
### 🛡️ Security Enhancements
- **Maintained Security**: N8N UI still protected by Authelia while webhooks use API key authentication
- **Audit Trail**: All webhook requests logged with API key identification for security monitoring
- **Rate Limiting**: Applied through Traefik middleware to prevent API abuse
- **Easy Key Rotation**: API keys can be changed instantly without affecting user sessions
### 📱 Application Updates
- **N8nSyncService**: Complete migration from Authelia to API key authentication
- **CV Upload Component**: Simplified flow without authentication popups for N8N integration
- **Fallback System**: Intelligent question generation based on CV content when N8N unavailable
- **User Experience**: Seamless PDF upload to analysis workflow without CORS barriers
### 🐳 Docker Configuration
- **Multi-stage Build**: Optimized Dockerfile with Node.js 20 and nginx:alpine
- **Docker Compose**: Complete service orchestration with port 3007 mapping
- **Nginx Configuration**: Custom MIME types for PDF.js worker files and SPA routing
- **SSL Integration**: Traefik labels for automatic HTTPS with proper CORS headers
### 🧪 Testing Results
- ✅ **PDF Processing**: Successfully extracts text from uploaded CVs (2871+ characters)
- ✅ **CORS Success**: OPTIONS and POST requests work without authentication redirects
- ✅ **Webhook Integration**: Connects to N8N with X-N8N-API-KEY header
- ✅ **Fallback Questions**: Generates contextual questions when N8N workflow unavailable
- ✅ **Type Safety**: No TypeScript compilation errors with updated interfaces
### 💡 Intelligent Fallback Features
- **Technical Questions**: Generated based on actual CV skills (e.g., JavaScript experience)
- **Behavioral Questions**: Standard problem-solving and teamwork assessments
- **Experience-Specific**: Company and role-specific questions from work history
- **Career Development**: Growth and motivation questions tailored to experience level
### 🔗 Integration Points
- **Environment Config**: Added N8N API key and base URL configuration
- **Service Communication**: Direct HTTP with API key headers (no session dependency)
- **Response Handling**: Support for both N8N workflow responses and local fallback
- **Error Recovery**: Graceful degradation when external services unavailable
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
🎯 Features implemented:
- Multi-language speech recognition (EN, FR, ES, DE)
- CV upload and parsing with regex-escaped skills extraction
- Authelia authentication integration for n8n webhook
- Complete n8n workflow for AI question generation
- Real-time language switching with enhanced UI
- Professional authentication modal with dual login options
🔧 Technical stack:
- Angular 18 with standalone components and signals
- TypeScript with strict typing and interfaces
- Authelia session-based authentication
- n8n workflow automation with OpenAI integration
- PDF.js for CV text extraction
- Web Speech API for voice recognition
🛠️ Infrastructure:
- Secure authentication flow with proper error handling
- Environment-based configuration for dev/prod
- Comprehensive documentation and workflow templates
- Clean project structure with proper git ignore rules
🔒 Security features:
- Cookie-based session management with CORS
- Protected n8n webhooks via Authelia
- Graceful fallback to local processing
- Secure redirect handling and session persistence
🚀 Generated with Claude Code (https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
