feat: add permission hierarchy tree

src/Application/TakeoutSaaS.Application/Identity/Handlers/CreatePermissionCommandHandler.cs

@@ -21,9 +21,18 @@ public sealed class CreatePermissionCommandHandler(
         var tenantId = tenantProvider.GetCurrentTenantId();
 
         // 2. 构建权限实体
+        var normalizedType = string.IsNullOrWhiteSpace(request.Type)
+            ? "leaf"
+            : request.Type.Trim().ToLowerInvariant();
+        normalizedType = normalizedType is "group" or "leaf" ? normalizedType : "leaf";
+        var parentId = request.ParentId > 0 ? request.ParentId : 0;
+        var sortOrder = request.SortOrder < 0 ? 0 : request.SortOrder;
         var permission = new Permission
         {
             TenantId = tenantId,
+            ParentId = parentId,
+            SortOrder = sortOrder,
+            Type = normalizedType,
             Name = request.Name,
             Code = request.Code,
             Description = request.Description
@@ -38,6 +47,9 @@ public sealed class CreatePermissionCommandHandler(
         {
             Id = permission.Id,
             TenantId = permission.TenantId,
+            ParentId = permission.ParentId,
+            SortOrder = permission.SortOrder,
+            Type = permission.Type,
             Name = permission.Name,
             Code = permission.Code,
             Description = permission.Description