chore: add documentation comments and stylecop rules

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

@@ -15,14 +15,18 @@ public sealed class GetRoleTemplateQueryHandler(IRoleTemplateRepository roleTemp
     /// <inheritdoc />
     public async Task<RoleTemplateDto?> Handle(GetRoleTemplateQuery request, CancellationToken cancellationToken)
     {
+        // 1. 查询模板
         var template = await roleTemplateRepository.FindByCodeAsync(request.TemplateCode, cancellationToken);
         if (template == null)
         {
             return null;
         }
 
+        // 2. 查询模板权限
         var permissions = await roleTemplateRepository.GetPermissionsAsync(template.Id, cancellationToken);
         var codes = permissions.Select(x => x.PermissionCode).ToArray();
+
+        // 3. 返回 DTO
         return TemplateMapper.ToDto(template, codes);
     }
 }