优化生产日志

deploy/README.md

@@ -49,6 +49,12 @@ STORAGE_SECRET_ACCESS_KEY
 ./scripts/deploy-prod.sh --logs
 ```
 
+后端运行日志会同时输出到 Docker 控制台，并写入宿主机：
+
+```text
+backend/logs/app-YYYY-MM-DD.log
+```
+
 测试阶段需要清空并重建数据库时：
 
 ```bash

deploy/docker-compose.prod.yml

@@ -47,6 +47,8 @@ services:
     restart: unless-stopped
     env_file:
       - ../backend/.env
+    volumes:
+      - ../backend/logs:/app/logs
     depends_on:
       mysql:
         condition: service_healthy