Upload 93 files

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 猪的飞行梦
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

app.py

@@ -122,7 +122,8 @@ async def http_exception_handler(request, exc):
     
     return JSONResponse(
         status_code=exc.status_code,
-        content=create_error_response(exc.status_code, str(exc.detail), error_type)
+        content=create_error_response(exc.status_code, str(exc.detail), error_type),
+        headers={"X-Ranking-Error-Scope": "endpoint"} if exc.status_code == 503 else None,
     )
 
 from upload_body_guard import UploadBodyGuard
@@ -366,7 +367,7 @@ app.add_middleware(
     allow_credentials=False, 
     allow_methods=["*"],
     allow_headers=["*"],
-    expose_headers=["ETag"],
+    expose_headers=["ETag", "X-Ranking-Error-Scope"],
 )
 
 # ==========================================