feat: add Docker deployment for the bot

- Add Dockerfile for Python 3.13 container
- Update docker-compose with naliia_bot service
- Add DB_HOST config for container networking
- Add .dockerignore for build optimization
- Update README with Docker documentation

docker-compose.yaml

@@ -18,5 +18,29 @@ services:
     env_file:
       - .env
 
+  naliia_bot:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - "8010:8010"
+    depends_on:
+      messages_db:
+        condition: service_healthy
+    env_file:
+      - .env
+    environment:
+      - LLM_MODEL=${LLM_MODEL:-deepseek}
+      - POSTGRES_HOST=messages_db
+      - POSTGRES_USER=${POSTGRES_USER:-postgres}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-postgres}
+      - POSTGRES_DB=${POSTGRES_DB:-messages}
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://localhost:8010/health || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
 volumes:
   data: