chore: 后端 agent 和 users 模块代码更新优化

backend/src/v1/users/service.py

@@ -90,9 +90,11 @@ class UserService(BaseService):
 
         if user is None:
             raise HTTPException(status_code=404, detail="User not found")
+        email = self._current_user.email if self._current_user else None
         return UserResponse(
             id=str(user.id),
             username=user.username,
+            email=email,
             avatar_url=user.avatar_url,
             bio=user.bio,
         )
@@ -131,9 +133,11 @@ class UserService(BaseService):
                 error=str(exc),
             )
 
+        email = self._current_user.email if self._current_user else None
         return UserResponse(
             id=str(user.id),
             username=user.username,
+            email=email,
             avatar_url=user.avatar_url,
             bio=user.bio,
         )