refactor: 重构 MinIO URL 构造方式

- 更新 MinIO URL 构造逻辑，添加 http 协议头
- 移除 web/.env 中的 MINIO_VISIT_HOST 和 MINIO_PORT 配置
- 修改前端 ChunkImage 组件，使用 JSON 格式解析 MinIO URL

api/apps/minio_app.py

@@ -1,10 +1,12 @@
 import os
 
+from flask import jsonify
+
 
 @manager.route("/endpoint", methods=["GET"])  # noqa: F821
-# @login_required
 def minio():
-    """
-    Constructs the MinIO endpoint URL based on environment variables.
-    """
-    return os.getenv("MINIO_VISIT_HOST", "localhost") + ":" + os.getenv("MINIO_PORT", "9000") + "/"
+    host = os.getenv("MINIO_VISIT_HOST", "localhost")
+    if not host.startswith("http"):
+        host = "http://" + host
+    port = os.getenv("MINIO_PORT", "9000")
+    return jsonify({"url": f"{host}:{port}/"})

web/.env

@@ -1,3 +1 @@
-PORT=9222
-MINIO_VISIT_HOST=localhost
-MINIO_PORT=9000
+PORT=9222

web/src/components/chunk_image/index.tsx

@@ -17,13 +17,17 @@ const ChunkImage = ({ id, className, ...props }: IImage) => {
   const [imgSrc, setImgSrc] = useState<string>('');
 
   useEffect(() => {
-    fetch(api.minio_endpoint)
-      .then((res) => res.text())
-      .catch(() => 'http://localhost:9000')
-      .then((minioUrl) => {
-        console.log('Minio URL:', minioUrl);
-        setImgSrc(`${minioUrl}/${id}`);
-      });
+    const getMinioUrl = async () => {
+      try {
+        const res = await fetch(api.minio_endpoint);
+        const data = await res.json();
+        setImgSrc(`${data.url}${id}`);
+      } catch (err) {
+        setImgSrc(`http://localhost:9000/${id}`);
+      }
+    };
+
+    getMinioUrl();
   }, [setImgSrc, id]);
 
   return (