QB Customizer: reorder/add/remove keys and app shortcuts, CQB/AQB independent
Two-tab Compose dialog (Keys + App Shortcuts) accessible from KB Settings →
Quick Bar tab → Customize, or AQB Settings → Customize. Pro-gated.
Keys tab: 29-key pool, up/down reorder, remove, add from available.
App Shortcuts tab: reorder/add/remove apps, expand to edit individual key
maps with label + action (hex bytes, escape sequences, or text macros).
Independent DataStore prefs for CQB and AQB configurations.
ADB test (06_qb_customizer.py) verifies full flow.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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