docs: 完善参数注释与StyleCop配置

src/Core/TakeoutSaaS.Shared.Abstractions/Data/IDapperExecutor.cs

@@ -29,6 +29,7 @@ public interface IDapperExecutor
     /// <param name="role">连接角色（读/写）。</param>
     /// <param name="command">命令委托，提供已打开的连接和取消标记。</param>
     /// <param name="cancellationToken">取消标记。</param>
+    /// <returns>异步执行任务。</returns>
     Task ExecuteAsync(
         string dataSourceName,
         DatabaseConnectionRole role,