Support an "env" and "sockets" feature

Now that StarlingMonkey is seeking to use runtime environment variables and sockets we might add these to the enable/disable features.

Alternatively, we might want a `debugger: true/false` ComponentizeJS option when we switch to the StarlingMonkey with debugger support.

未指定任何檔案、測試或進入點。首先釐清預期工作是 env 和 sockets 功能切換開關、偵錯工具選項，還是兩者，然後找出現有的功能啟用/停用設定及其測試；完成應定義為所選選項被接受並通過測試驗證。

由索引模型根據 Issue 內容生成。