Feature: User-configurable recording activation modes

[kitlangton]

Summary

Allow users to choose their preferred recording activation mode(s) independently of their hotkey configuration, rather than having the mode automatically determined by hotkey type.

Current Behavior

• Key + Modifier combos (e.g., Cmd+A): Can use press-and-hold OR double-tap mode (via "Use double-tap only" toggle)
• Modifier-only hotkeys (e.g., Option): Only press-and-hold with minimum duration threshold ("Ignore below X seconds")

The activation mode is determined by the hotkey type, not user preference.

Proposed Behavior

Users should be able to select any combination of these activation modes regardless of hotkey type:

1. Press-and-hold: Hold the hotkey down, speak, release to transcribe
2. Double-tap-and-hold: Tap-release-tap-hold to start, release to transcribe
3. Toggle mode: Tap once to start recording, tap again to stop (addresses Start/stop recordings with hotkey (instead of hold-to-record) #108)

Benefits

• Maximum flexibility for different workflows and preferences
• Addresses use cases like Double tap option in settings missing? #78 (wanting double-tap for modifier-only hotkeys)
• Addresses Start/stop recordings with hotkey (instead of hold-to-record) #108 (toggle mode for long recordings without holding)
• Users can choose the mode that works best for their physical setup and usage patterns

Implementation Notes

This would involve:

• Separating activation mode logic from hotkey type detection
• Adding UI controls (radio buttons or checkboxes) to select preferred mode(s)
• Updating HotKeyProcessor to respect user's mode preference rather than inferring from hotkey type
• Potentially allowing multiple modes to be enabled simultaneously (e.g., both press-and-hold AND double-tap)

Related Issues

• Double tap option in settings missing? #78 - User wants double-tap for modifier-only hotkeys
• Start/stop recordings with hotkey (instead of hold-to-record) #108 - User wants toggle mode for long recordings