Add selectable Voxtype and Superwhisper dictation (#14552)

* Add selectable dictation backends

* Move dictation migration after repository priority update

* Extract backend-specific dictation installers

* Keep dictation installer dispatcher executable

* Call dictation backend installers directly

* Drop legacy Superwhisper migration and runtime cleanup

* Separate dictation defaults from generic recording protocol

* Add backend-specific dictation removers

* Preserve existing Voxtype selection during upgrade

* Make dictation backend selection safe and retryable

* Show the dictation indicator only for selected Voxtype

* Allow switching away from stopped Superwhisper

* Remove the built-in bar dictation indicator

* Store default dictation selection under defaults

* Rename dictation backend selector to use

* Move dictation removers into their own menu category

test/shell.d/menu-guards-test.sh

@@ -71,7 +71,7 @@ const fs = require('fs')
 const defaultItems = menu.parseMenuJsonc(fs.readFileSync(path.join(root, 'default/omarchy/omarchy-menu.jsonc'), 'utf8'))
 const guardText = defaultItems.map(item => `${item.when}\n${item.checked}\n${item.disabled}`).join('\n')
 const repeated = [...new Set(
-  (guardText.match(/\$\((omarchy-[a-z0-9-]+)\)/g) || []).map(match => match.slice(2, -1))
+  (guardText.match(/\$\((omarchy-[a-z0-9-]+(?: [a-z0-9-]+)*)\)/g) || []).map(match => match.slice(2, -1))
 )].filter(command => guardText.split(`$(${command})`).length > 2)
 assertDeepEqual(
   repeated.filter(command => !menu.guardReaders.includes(command)),