Flatten repo structure: move crawler/ to root, remove vqa/ and immoweb/

The crawler subdirectory was the only active project. Moving it to the
repo root simplifies paths and removes the unnecessary nesting. The
vqa/ and immoweb/ directories were legacy/unused and have been removed.

Updated .drone.yml, .gitignore, .claude/ docs, and skills to reflect
the new flat structure.

crawler/docker-compose.yml

@@ -1,152 +0,0 @@
-services:
-  redis:
-    image: redis:8
-    container_name: rec-redis
-    ports:
-      - "6379:6379"
-    volumes:
-      - redis_data:/data
-    command: ["redis-server", "--appendonly", "yes"]
-    healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
-      interval: 5s
-      timeout: 3s
-      retries: 5
-    networks:
-      - rec-network
-
-  mysql:
-    image: mysql:9
-    container_name: rec-mysql
-    hostname: mysql
-    ports:
-      - "3306:3306"
-    environment:
-      MYSQL_ROOT_PASSWORD: rootpass
-      MYSQL_DATABASE: wrongmove
-      MYSQL_USER: wrongmove
-      MYSQL_PASSWORD: wrongmove
-    volumes:
-      - mysql_data:/var/lib/mysql
-    healthcheck:
-      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-      start_period: 30s
-    networks:
-      - rec-network
-
-  app:
-    build:
-      context: .
-      dockerfile: Dockerfile
-    container_name: rec-app
-    ports:
-      - "5001:5001"
-    volumes:
-      # Bind mount source code for development
-      - .:/app
-      # Preserve virtual environment in container
-      - app_venv:/app/.venv
-    environment:
-      - ENV=dev
-      - DB_CONNECTION_STRING=mysql+mysqldb://wrongmove:wrongmove@mysql:3306/wrongmove
-      - CELERY_BROKER_URL=redis://redis:6379/0
-      - CELERY_RESULT_BACKEND=redis://redis:6379/0
-      - ROUTING_API_KEY=${ROUTING_API_KEY:-}
-    depends_on:
-      redis:
-        condition: service_healthy
-      mysql:
-        condition: service_healthy
-    command: ["uvicorn", "api.app:app", "--host", "0.0.0.0", "--port", "5001", "--reload", "--reload-dir", "api", "--reload-dir", "services", "--reload-dir", "repositories", "--reload-dir", "models"]
-    networks:
-      - rec-network
-
-  celery:
-    build:
-      context: .
-      dockerfile: Dockerfile
-    container_name: rec-celery
-    volumes:
-      - .:/app
-      - app_venv:/app/.venv
-    environment:
-      - ENV=dev
-      - DB_CONNECTION_STRING=mysql+mysqldb://wrongmove:wrongmove@mysql:3306/wrongmove
-      - CELERY_BROKER_URL=redis://redis:6379/0
-      - CELERY_RESULT_BACKEND=redis://redis:6379/0
-      - ROUTING_API_KEY=${ROUTING_API_KEY:-}
-      - SCRAPE_SCHEDULES=${SCRAPE_SCHEDULES:-}
-    depends_on:
-      redis:
-        condition: service_healthy
-      mysql:
-        condition: service_healthy
-    command: ["celery", "-A", "celery_app", "worker", "--loglevel=info"]
-    networks:
-      - rec-network
-
-  celery-beat:
-    build:
-      context: .
-      dockerfile: Dockerfile
-    container_name: rec-celery-beat
-    volumes:
-      - .:/app
-      - app_venv:/app/.venv
-    environment:
-      - ENV=dev
-      - DB_CONNECTION_STRING=mysql+mysqldb://wrongmove:wrongmove@mysql:3306/wrongmove
-      - CELERY_BROKER_URL=redis://redis:6379/0
-      - CELERY_RESULT_BACKEND=redis://redis:6379/0
-      - SCRAPE_SCHEDULES=${SCRAPE_SCHEDULES:-}
-    depends_on:
-      - redis
-      - celery
-    command: ["celery", "-A", "celery_app", "beat", "--loglevel=info"]
-    networks:
-      - rec-network
-
-  frontend:
-    image: node:24-alpine
-    container_name: rec-frontend
-    working_dir: /app
-    ports:
-      - "5173:5173"
-    volumes:
-      - ./frontend:/app
-      - frontend_node_modules:/app/node_modules
-    environment:
-      - DEV_HOST=${DEV_HOST:-localhost}
-    command: sh -c "npm ci && npm run dev -- --host"
-    networks:
-      - rec-network
-
-  caddy:
-    image: caddy:alpine
-    container_name: rec-caddy
-    ports:
-      - "443:443"
-    volumes:
-      - ./frontend/Caddyfile.dev:/etc/caddy/Caddyfile
-      - caddy_data:/data
-    environment:
-      - DEV_HOST=${DEV_HOST:-localhost}
-    depends_on:
-      - frontend
-      - app
-    networks:
-      - rec-network
-
-networks:
-  rec-network:
-    driver: bridge
-
-volumes:
-  redis_data:
-  mysql_data:
-  app_venv:
-  frontend_node_modules:
-  caddy_data: