[Bug]: Editor loses focus a few seconds after stopping typing (Auto-save collision) #942

Describe the bug

While typing a note in MassCode, if I stop typing for a few seconds, the text area completely loses focus, forcing me to click inside the editor again to continue typing.

To reproduce

1. Open any note.
2. Type some text.
3. Stop typing and wait 2-3 seconds (triggering the auto-save debounce).
4. The cursor disappears and focus is lost from the text area.

Technical Context: This seems to be caused by the bt.updateListener.of listener inside the CodeMirror initialization. When the debounced save function triggers (P(!1) inside the un() scheduler), it causes a reactive state mutation that forces Vue to re-render or re-instantiate the CodeMirror state, causing document.activeElement to lose focus.

App Version and Architecture

5.12.0 Mac OS X Tahoe 26.6.2 arm64

System info

System:
  OS: macOS 26.6.2
  CPU: Apple M2
  Memory: 8 GB
  Shell: 5.9 - /bin/zsh

Validations

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