更新v1.4版本，修复了一些已知问题

backend/middleware/auth_middleware.py

@@ -92,7 +92,6 @@ class AuthMiddleware(BaseHTTPMiddleware):
                 logger.warning(f"[Auth] {path} - Redis Token不匹配, user_id={user_id}, stored={'有' if stored_token else '无'}")
                 return self._cors_response(request, 401, "令牌已失效，请重新登录")
             
-            # 将用户信息存储到request.state
             # 将用户信息存储到request.state
             request.state.user_id = payload.get("user_id")
             request.state.username = payload.get("username")
@@ -142,20 +141,3 @@ class AuthMiddleware(BaseHTTPMiddleware):
             },
             headers=headers
         )
-
-
-async def get_current_user(request: Request) -> Dict[str, Any]:
-    """获取当前登录用户信息"""
-    return {
-        "user_id": request.state.user_id,
-        "username": request.state.username,
-        "real_name": getattr(request.state, 'real_name', None) or request.state.username,
-        "user_type": request.state.user_type,
-        "student_id": request.state.student_id,
-        "role": request.state.role
-    }
-
-
-async def get_current_user_id(request: Request) -> int:
-    """获取当前用户ID"""
-    return request.state.user_id