Add WHOOSH search service with BACKBEAT integration

Complete implementation:
- Go-based search service with PostgreSQL and Redis backend
- BACKBEAT SDK integration for beat-aware search operations
- Docker containerization with multi-stage builds
- Comprehensive API endpoints for project analysis and search
- Database migrations and schema management
- GITEA integration for repository management
- Team composition analysis and recommendations

Key features:
- Beat-synchronized search operations with timing coordination
- Phase-based operation tracking (started → querying → ranking → completed)
- Docker Swarm deployment configuration
- Health checks and monitoring
- Secure configuration with environment variables

Architecture:
- Microservice design with clean API boundaries
- Background processing for long-running analysis
- Modular internal structure with proper separation of concerns
- Integration with CHORUS ecosystem via BACKBEAT timing

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

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

docker-compose.yml

@@ -0,0 +1,68 @@
+version: '3.8'
+
+services:
+  whoosh:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - "8080:8080"
+    environment:
+      # Database configuration
+      WHOOSH_DATABASE_HOST: postgres
+      WHOOSH_DATABASE_PORT: 5432
+      WHOOSH_DATABASE_DB_NAME: whoosh
+      WHOOSH_DATABASE_USERNAME: whoosh
+      WHOOSH_DATABASE_PASSWORD: whoosh_dev_password
+      WHOOSH_DATABASE_SSL_MODE: disable
+      WHOOSH_DATABASE_AUTO_MIGRATE: "true"
+      
+      # Server configuration
+      WHOOSH_SERVER_LISTEN_ADDR: ":8080"
+      
+      # GITEA configuration
+      WHOOSH_GITEA_BASE_URL: http://ironwood:3000
+      WHOOSH_GITEA_TOKEN: ${GITEA_TOKEN}
+      WHOOSH_GITEA_WEBHOOK_TOKEN: ${WEBHOOK_TOKEN:-dev_webhook_token}
+      
+      # Auth configuration
+      WHOOSH_AUTH_JWT_SECRET: ${JWT_SECRET:-dev_jwt_secret_change_in_production}
+      WHOOSH_AUTH_SERVICE_TOKENS: ${SERVICE_TOKENS:-dev_service_token_1,dev_service_token_2}
+      
+      # Logging
+      WHOOSH_LOGGING_LEVEL: debug
+      WHOOSH_LOGGING_ENVIRONMENT: development
+      
+      # Redis (optional for development)
+      WHOOSH_REDIS_ENABLED: "false"
+    depends_on:
+      - postgres
+    restart: unless-stopped
+    networks:
+      - whoosh-network
+
+  postgres:
+    image: postgres:15-alpine
+    environment:
+      POSTGRES_DB: whoosh
+      POSTGRES_USER: whoosh
+      POSTGRES_PASSWORD: whoosh_dev_password
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+    restart: unless-stopped
+    networks:
+      - whoosh-network
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U whoosh"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+
+volumes:
+  postgres_data:
+
+networks:
+  whoosh-network:
+    driver: bridge