Phone page improvements:
- Clear caller number display after call disconnects
- Add "Recent" tab with session call history (tap to call back)
- Persist outbound caller ID selection in localStorage
- Fix button overlap with proper z-index layering
- Add manual dark mode toggle (System/Light/Dark) in Settings
- Improve dark mode CSS for all UI elements
Refactor phone page into separate files:
- assets/mobile/phone.css (848 lines) — all CSS
- assets/mobile/phone.js (1065 lines) — all JavaScript
- assets/mobile/phone-template.php (267 lines) — HTML template
- includes/class-twp-mobile-phone-page.php (211 lines) — PHP controller
- PHP values passed to JS via window.twpConfig bridge
Flutter app:
- Replace FAB with slim AppBar (refresh + menu buttons)
- Fix dark mode colors using theme-aware colorScheme
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
