Add operation_id to upload endpoints for improved OpenAPI docs

The `operation_id` field was added to the `generate_presigned_url` and `upload_file` endpoints. This enhances the OpenAPI documentation by providing unique identifiers for better API clarity and client generation.

backend/app/api/routes/uploads.py

@@ -15,7 +15,7 @@ router = APIRouter()
 
 
 
-@router.post("/presigned-url", response_model=PresignedUrlResponse)
+@router.post("/presigned-url", response_model=PresignedUrlResponse, operation_id="generate_presigned_url")
 async def generate_presigned_url(
         request: PresignedUrlRequest,
         current_user: User = Depends(get_current_user),
@@ -62,11 +62,11 @@ async def generate_presigned_url(
     )
 
 
-@router.post("/{token}")
+@router.post("/{token}", operation_id="upload_file")
 async def upload_file(
         token: str,
         file: UploadFile = File(...),
-        storage: StorageProvider = Depends(get_storage_provider)
+        storage: StorageProvider = Depends(get_storage_provider),
 ):
     """
     Upload a file using a presigned URL token.