support user

functions/api/user/upload.ts

@@ -0,0 +1,24 @@
+export const onRequestPost: PagesFunction<Env> = async (context) =>{
+    const { env, data } = context;
+    
+    // 创建 FormData 对象
+    const formData = new FormData();
+    formData.append('requireSignedURLs', 'false');
+    formData.append('metadata', JSON.stringify({
+      user: data.user.userId
+    }));
+
+    // 调用 Cloudflare Images API 获取直接上传 URL
+    const response = await fetch(`https://api.cloudflare.com/client/v4/accounts/${env.CF_ACCOUNT_ID}/images/v2/direct_upload`, {
+      method: "POST",
+      headers: {
+        "Authorization": `Bearer ${env.CF_API_TOKEN}`,
+      },
+      body: formData
+    });
+  
+    const data1 = await response.json();
+    console.log('上传头像', data1);
+    //下发image前缀
+    return Response.json(data1.result);
+  }