fix(upload): P1-1 改 volume mount 持久化上传文件

docker-compose.yml

@@ -100,6 +100,10 @@ services:
       # 服务配置
       - BACKEND_HOST=0.0.0.0
       - BACKEND_PORT=8000
+      # 上传文件目录（持久化）
+      - UPLOAD_DIR=/app/uploads
+    volumes:
+      - backend-uploads:/app/uploads
     depends_on:
       postgres:
         condition: service_healthy
@@ -115,11 +119,11 @@ services:
     networks:
       - it-desk-internal
     healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:8000/health || exit 1"]
-      interval: 15s
-      timeout: 5s
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:8000/health').read()"]
+      interval: 30s
+      timeout: 10s
       retries: 3
-      start_period: 30s
+      start_period: 40s
     logging:
       driver: "json-file"
       options:
@@ -173,3 +177,5 @@ volumes:
     name: wecom_it_postgres_data
   redis_data:
     name: wecom_it_redis_data
+  backend-uploads:
+    name: wecom_it_backend_uploads