重构后端服务架构并优化前端错误处理

fastapi-backend/app/utils/response.py

@@ -0,0 +1,26 @@
+from typing import Any, Optional, Generic, TypeVar
+from pydantic import BaseModel
+from datetime import datetime
+
+T = TypeVar('T')
+
+class SuccessResponse(BaseModel, Generic[T]):
+    code: int = 200
+    message: str = "Success"
+    data: Optional[T] = None
+    timestamp: datetime = datetime.now()
+
+class ErrorResponse(BaseModel):
+    code: int = 500
+    message: str = "Internal Server Error"
+    data: Optional[Any] = None
+    timestamp: datetime = datetime.now()
+
+class PaginatedResponse(BaseModel, Generic[T]):
+    code: int = 200
+    message: str = "Success"
+    data: Optional[T] = None
+    timestamp: datetime = datetime.now()
+    total: int
+    page: int
+    limit: int