1.5.12 fixes and dictation shortcut cleanup

[altic-dev]

Description

This PR rolls up the current 1.5.12 fixes branch into one reviewable stack.

Highlights:

• reworks dictation into two configurable shortcuts, each with its own AI prompt selection (Off, Default, or custom)
• adds manual backup/restore and a configurable cancel-recording shortcut
• syncs microphone switching between Settings and the menu bar
• hardens launch-at-startup behavior
• improves Parakeet Flash diagnostics and updates the README for the new model option

Type of Change

• 🐞 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📝 Documentation update

Related Issues

• Closes #

Testing

• Tested on Intel Mac
• Tested on Apple Silicon Mac
• Tested on macOS 26.3
• Ran linter locally: swiftlint --strict --config .swiftlint.yml Sources
• Ran formatter locally: swiftformat --config .swiftformat Sources
• Built locally: sh build_incremental.sh

Notes

• AI settings now manage prompt bodies, while per-shortcut assignment lives in Keyboard Shortcuts.
• Release notes for 1.5.12 were updated locally but intentionally not committed because the release notes files are gitignored.

Screenshots / Video

• Not included in this PR body.

[chatgpt-codex-connector]

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Reviewed commit: 64822ff552

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[chatgpt-codex-connector]

Make default AI gate evaluate both dictation shortcuts

isConfigured() now hardcodes .primary, but several existing call sites still use the no-arg form as a global readiness check (for example onboarding readiness in WelcomeView/ContentView and reprocess flow in ContentView.reprocessDictationText). With the new defaults, users can have primary set to Off while secondary is configured for AI, and these paths will incorrectly report AI as unavailable or skip reprocessing. The no-arg gate should preserve prior “any dictation path is configured” semantics, or those callers should be updated to pass an explicit slot.

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: 73a9910d5f

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• Comment "@codex review".

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[chatgpt-codex-connector]

Apply restored audio devices to system defaults

Backup restore only assigns preferredInputDeviceUID/preferredOutputDeviceUID, but this app now hardwires syncAudioDevicesWithSystem to true and follows macOS defaults for actual routing. That means importing a backup reports success while the effective input/output devices remain whatever macOS was already using, so the restored audio-device settings are silently ignored unless the defaults already match.

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[chatgpt-codex-connector]

Handle modifier-only cancel shortcuts

The configurable cancel shortcut is evaluated only in the keyDown branch, but modifier-only shortcuts (for example Shift/Fn), which the shortcut recorder can produce, arrive as flagsChanged events rather than keyDown. In that configuration, cancel never fires, so users can save a cancel binding that does not work during recording or overlay dismissal.

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