update. 完成导航菜单接口

base/schema.py

@@ -69,3 +69,35 @@ class PictureLinkUpdateSchema(Schema):
     url: Optional[str] = None
     order: Optional[int] = None
     is_active: Optional[bool] = None
+
+
+class MainMenuBase(Schema):
+    """基础菜单字段"""
+    title: str
+    code: str
+    url: str = ""
+    is_external: bool = False
+    is_carousel: bool = False
+    order: int = 0
+    visible: bool = True
+
+
+class MainMenuCreate(MainMenuBase):
+    """创建时的 Schema"""
+    parent_id: Optional[int] = None
+
+
+class MainMenuUpdate(MainMenuBase):
+    """更新时的 Schema"""
+    parent_id: Optional[int] = None
+
+
+class MainMenuOut(MainMenuBase):
+    """输出用的 Schema，包含 ID 和递归的子菜单"""
+    id: int
+    parent_id: Optional[int] = None
+    children: List['MainMenuOut'] = []  # 递归引用自身
+
+
+# 告诉 Pydantic 如何处理递归模型
+MainMenuOut.model_rebuild()