Make Kerlig recognize specific code block tags and treat their contents as files.

Example: A custom prompt that turns selected text into an ICS calendar event would output:

```ics

EVENT DATA GENERATED BY PROMPT

```

If the code block is tagged , Kerlig extracts its contents, generates an .ics file, and shows the file inline instead of the code block. Clicking opens it in the default macOS app; right‑click provides options to save, open with another app, or reveal the raw contents. Similar to text correction feature, TAB key could be used to switch between file view and raw code block view.