feat(backend): 重构 HTTP 错误处理为 RFC7807 标准并优化多个 service

backend/tests/unit/v1/auth/test_auth_gateway.py

@@ -4,7 +4,7 @@ from types import SimpleNamespace
 from unittest.mock import MagicMock
 
 import pytest
-from fastapi import HTTPException
+from core.http.errors import ApiProblemError
 
 from v1.auth.gateway import SupabaseAuthGateway
 from v1.auth.schemas import (
@@ -101,7 +101,7 @@ class TestSupabaseAuthGateway:
             return_value=SimpleNamespace(session=None, user=None)
         )
 
-        with pytest.raises(HTTPException) as exc_info:
+        with pytest.raises(ApiProblemError) as exc_info:
             await sut.refresh_session(SessionRefreshRequest(refresh_token="bad"))
 
         assert exc_info.value.status_code == 401