Feature request: import note to specific URL

This is a really useful tool, thank you for developing it.

For our use cases, it would be very helpful to be able to specify the page slug for an imported note. This would need to include a check for whether the note already exists, to avoid overwriting the content of existing notes, but would be very helpful to increase the findability of old notes.

首先定位用來匯入筆記的 CLI 命令，並追蹤目標 URL 或 slug 的選擇方式。檢查如何偵測現有筆記，並以接受要求的 slug 且不覆寫現有筆記作為工作完成的標準。

由索引模型根據 Issue 內容生成。