config(storage): 切换上传存储方式为MinIO并更新配置

- 将上传存储方式从本地存储切换为MinIO对象存储
- 更新MinIO服务端点地址为容器化部署地址
- 保留MinIO访问凭据配置
- 维持原有的文件类型限制和大小限制设置

server/src/main/resources/application.yml

@@ -58,14 +58,14 @@ knife4j:
 
 # 存储：local=本机 uploads | minio=对象存储，见 server/deploy/minio-spring-config.example.yml
 upload:
-  storage: local
+  storage: minio
   path: uploads/
   allowed-types: image/jpeg,image/png,image/gif,image/webp,image/svg+xml,video/mp4,video/webm
   max-size: 52428800
 
 # 仅 upload.storage=minio 时生效；密钥用环境变量注入，勿提交生产明文
 minio:
-  endpoint: http://127.0.0.1:9000
+  endpoint: http://minio:9000
   access-key: minioadmin
   secret-key: minioadmin
   bucket: wuhan-saga