Add Google Search service with advanced features

- Implement multi-method search (Custom Search API, SerpAPI, web scraping)
- Support up to 20 results with pagination
- Add date filtering and sorting capabilities
- Include full content fetching option
- Add country/language specific search support
- Implement Redis caching for performance
- Create comprehensive documentation

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

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

docker-compose.yml

@@ -354,6 +354,35 @@ services:
       timeout: 10s
       retries: 3
 
+  # Google Search Service
+  google-search-backend:
+    build: 
+      context: ./services/google-search/backend
+      dockerfile: Dockerfile
+    container_name: ${COMPOSE_PROJECT_NAME}_google_search_backend
+    ports:
+      - "8016:8000"
+    environment:
+      - REDIS_HOST=redis
+      - REDIS_PORT=6379
+      - REDIS_DB=2
+      - GOOGLE_API_KEY=AIzaSyBakoCsDP_oF5V4oq_eEKs4eQb-ekqxnRM
+      - GOOGLE_SEARCH_ENGINE_ID=35bfbdb7b6f244569
+      - SERPAPI_KEY=${SERPAPI_KEY:-}
+      - DEFAULT_LANGUAGE=ko
+      - DEFAULT_COUNTRY=kr
+      - CACHE_TTL=3600
+    depends_on:
+      - redis
+    networks:
+      - site11_network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
 networks:
   site11_network:
     driver: bridge