chore(deploy): docker-compose 添加源码挂载和 env_file 配置

- 挂载源码目录到容器，支持 git pull + restart 热更新代码
- 添加 env_file 引用项目根目录 .env，解决环境变量缺失问题
- 添加 data/ 目录挂载（SQLite 数据库）

deploy/docker-compose.yml

@@ -6,19 +6,35 @@ services:
       context: ..
       dockerfile: deploy/Dockerfile
     container_name: rag-service
+    env_file:
+      - ../.env
     ports:
       - "5001:5001"
     volumes:
-      - ../knowledge/vector_store:/app/knowledge/vector_store  # 向量索引（必须）
-      - ../.data:/app/.data                    # 上传文件
-      - ../documents:/app/documents            # 源文档
-      - ../models:/app/models                  # 嵌入模型
-      # 生产环境不挂载 data/ 目录（不使用SQLite）
+      # 数据目录
+      - ../.data:/app/.data
+      - ../documents:/app/documents
+      - ../models:/app/models
+      - ../data:/app/data
+      # 源码挂载（git pull 后重启即生效，无需重建镜像）
+      - ../api:/app/api
+      - ../core:/app/core
+      - ../knowledge:/app/knowledge
+      - ../services:/app/services
+      - ../parsers:/app/parsers
+      - ../repositories:/app/repositories
+      - ../storage:/app/storage
+      - ../auth:/app/auth
+      - ../config:/app/config
+      - ../exam_pkg:/app/exam_pkg
+      - ../deploy/wsgi.py:/app/deploy/wsgi.py
+      - ../deploy/gunicorn.conf.py:/app/deploy/gunicorn.conf.py
+      - ../config.py:/app/config.py
+      - ../main.py:/app/main.py
+      - ../requirements.txt:/app/requirements.txt
+      - ../requirements-prod.txt:/app/requirements-prod.txt
     environment:
       - APP_ENV=prod
-      - DASHSCOPE_API_KEY=${DASHSCOPE_API_KEY}
-      - DASHSCOPE_MODEL=${DASHSCOPE_MODEL:-mimo-v2.5}
-      - RERANK_USE_ONNX=${RERANK_USE_ONNX:-false}
     restart: unless-stopped
     # 资源限制：Embedding模型加载需要较多内存
     shm_size: '256m'  # Gunicorn 心跳文件需要