Fix: optimize file batch delete (#14473)

### What problem does this PR solve?

optimize file batch delete

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

docs/references/http_api_reference.md

@@ -7257,7 +7257,9 @@ Success:
     }
 }
 ```
-
+
+---
+
 ### Download file
 
 **GET** `/api/v1/files/{file_id}`
@@ -7265,8 +7267,14 @@ Failure:
 Downloads a file from the system.
 
 :::caution DEPRECATED
-- URL: `/api/v1/files/{file_id}`
-- Headers:
+The previous endpoint `GET /api/v1/file/get/{file_id}` is deprecated. Please use this endpoint instead.
+:::
+
+#### Request
+
+- Method: GET
+- URL: `/api/v1/files/{file_id}`
+- Headers:
   - `'Authorization: Bearer <YOUR_API_KEY>'`
 
 ##### Request example