Publish a recommended config which uses `wc` plugin

Consumers should pretty much always use both eslint-plugin-lit and [eslint-plugin-wc](https://github.com/43081j/eslint-plugin-wc).

To help make this more obvious and easier, we should publish a recommended config which depends on `wc`.

We may want to avoid requiring it as a dependency, though. Maybe some kind of optional peer dependency? if thats possible

查看專案中現有的 recommended 配置，通常位於 `src/configs/` 目錄。了解 eslint-plugin-wc 的設定方式，以及如何將其作為可選 peer dependency 整合。檢查專案 package.json 中的依賴模式。目標是建立一個新的 config 檔案，擴展兩個 plugin 並正確 export。

由索引模型根據 Issue 內容生成。