Add info about hardware

- Cad files and blueprints for the cabinet should be made available
- Assembly instructions should be with them
- A list of all parts used would be useful too

Most if not all of these are in the Clickup that was being used earlier in the proejct

未指定檔案或測試。首先檢視現有的 devcade-docs 結構，以及 issue 中參考的 ClickUp 資料；當機櫃的 CAD 檔案與藍圖、組裝說明，以及完整的零件清單與文件一同公開可用時，工作即告完成。

由索引模型根據 Issue 內容生成。