refactor: 重构权限管理模块为菜单管理模块

1. 前端将权限管理页面替换为菜单管理页面，更新路由配置
2. 后端角色删除逻辑优化，新增角色存在性检查
3. 后端权限删除逻辑增强，自动清理关联数据并调整子权限层级
4. 更新初始化权限数据中的菜单管理配置

backend/auth/apps/permissions/urls.py

@@ -218,15 +218,33 @@ async def delete_permission(
     db: AsyncSession = Depends(get_db),
     current_user: User = Depends(get_current_user),
 ):
-    """删除权限"""
+    """删除权限（自动清理角色关联和子权限关联）"""
     # 检查权限是否存在
     result = await db.execute(select(Permission).filter(Permission.id == permission_id))
     existing_permission = result.scalar_one_or_none()
     if not existing_permission:
         raise HTTPException(status_code=404, detail="权限不存在")
 
-    # 使用FastCRUD删除权限
-    deleted = await permission_crud.delete(db, id=permission_id)
+    # 1. 删除角色-权限关联表中的记录
+    from sqlalchemy import delete as sql_delete
+    from models import role_permission
+
+    stmt = sql_delete(role_permission).where(role_permission.c.permission_id == permission_id)
+    await db.execute(stmt)
+
+    # 2. 处理子权限：如果有子权限，将子权限的父ID置为0（提升为顶级节点）
+    from sqlalchemy import update as sql_update
+
+    stmt = (
+        sql_update(Permission)
+        .where(Permission.parentid == permission_id)
+        .values(parentid=0)
+    )
+    await db.execute(stmt)
+
+    # 3. 使用FastCRUD删除权限本身（不提交，与前述操作在同一事务中）
+    await permission_crud.delete(db, id=permission_id, commit=False)
+    await db.commit()
     return {"message": "权限删除成功"}
 
 

backend/auth/apps/roles/urls.py

@@ -125,9 +125,13 @@ async def delete_role(
     current_user: User = Depends(get_current_user),
 ):
     """删除角色"""
-    # 检查是否有用户使用此角色
-    from sqlalchemy import select
+    # 检查角色是否存在
+    result = await db.execute(select(Role).filter(Role.id == role_id))
+    existing_role = result.scalar_one_or_none()
+    if not existing_role:
+        raise HTTPException(status_code=404, detail="角色不存在")
 
+    # 检查是否有用户使用此角色
     result = await db.execute(select(User).filter(User.role_id == role_id))
     users = result.scalars().all()
     if users:
@@ -135,14 +139,6 @@ async def delete_role(
             status_code=400, detail=f"该角色正在被 {len(users)} 个用户使用，无法删除"
         )
 
-    # 使用原生 SQLAlchemy 删除角色（FastCRUD 有问题）
-    from sqlalchemy import delete as sql_delete
-    
-    stmt = sql_delete(Role).where(Role.id == role_id)
-    result = await db.execute(stmt)
-    
-    if result.rowcount == 0:
-        raise HTTPException(status_code=404, detail="角色不存在")
-    
-    await db.commit()
+    # 使用FastCRUD删除角色
+    await role_crud.delete(db, id=role_id)
     return {"message": "角色删除成功"}

backend/auth/init_data.py

@@ -69,7 +69,7 @@ async def init_permissions(db: AsyncSession):
         # ========================================
         {"name": "用户管理", "code": "perm:user", "parentid": 1, "route": "/admin/users", "description": "用户管理子模块"},
         {"name": "角色管理", "code": "perm:role", "parentid": 1, "route": "/admin/roles", "description": "角色管理子模块"},
-        {"name": "权限配置", "code": "perm:config", "parentid": 1, "route": "/admin/permissions", "description": "权限配置子模块"},
+        {"name": "菜单管理", "code": "perm:menu", "parentid": 1, "route": "/admin/menu", "description": "菜单管理子模块"},
         
         # ========================================
         # 系统设置 -> 二级子模块
@@ -104,13 +104,13 @@ async def init_permissions(db: AsyncSession):
         # ========================================
         # 权限配置操作（parentid=5）
         # ========================================
-        {"name": "查看列表", "code": "perm:config:list", "parentid": 5, "description": "查看权限列表"},
-        {"name": "查看详情", "code": "perm:config:detail", "parentid": 5, "description": "查看权限详情"},
-        {"name": "搜索", "code": "perm:config:search", "parentid": 5, "description": "搜索权限"},
-        {"name": "创建", "code": "perm:config:create", "parentid": 5, "description": "创建新权限"},
-        {"name": "编辑", "code": "perm:config:edit", "parentid": 5, "description": "编辑权限信息"},
-        {"name": "删除", "code": "perm:config:delete", "parentid": 5, "description": "删除权限"},
-        {"name": "导出", "code": "perm:config:export", "parentid": 5, "description": "导岀权限数据"},
+        {"name": "查看列表", "code": "perm:menu:list", "parentid": 5, "description": "查看权限列表"},
+        {"name": "查看详情", "code": "perm:menu:detail", "parentid": 5, "description": "查看权限详情"},
+        {"name": "搜索", "code": "perm:menu:search", "parentid": 5, "description": "搜索权限"},
+        {"name": "创建", "code": "perm:menu:create", "parentid": 5, "description": "创建新权限"},
+        {"name": "编辑", "code": "perm:menu:edit", "parentid": 5, "description": "编辑权限信息"},
+        {"name": "删除", "code": "perm:menu:delete", "parentid": 5, "description": "删除权限"},
+        {"name": "导出", "code": "perm:menu:export", "parentid": 5, "description": "导岀权限数据"},
         
         # ========================================
         # 系统设置 -> 基础配置操作（parentid=6）

frontend/src/router/index.ts

@@ -39,11 +39,11 @@ const router = createRouter({
 
         },
         {
-          path: "permissions",
-          name: "admin-permissions",
+          path: "menu",
+          name: "admin-menu",
           meta: { title: "菜单管理", permission: "perm:menu" },
           component: () =>
-            import("@/modules/admin/views/permissions/PermissionManage.vue"),
+            import("@/modules/admin/views/permissions/MenuManage.vue"),
         },
         {
           path: "settings",