- Replace stored phone_config.txt with _get_wireless_serial() which
parses 'adb devices' and auto-picks the ip:port (wireless) entry
- Replace _scan_phone_port-based reconnect with _try_wireless_reconnect
that scans local /24 subnet on port 5555 via parallel probing
- Add _get_local_subnet_prefix() using UDP socket trick (8.8.8.8:80)
- Remove PHONE_CONFIG_FILE, _load_phone_config, _save_phone_config,
_save_connected_device_config, _scan_phone_port
- No config file needed; device is always discovered dynamically
- 112 tests passing
- ADB check runs in background thread (ThreadPoolExecutor) so the UI
remains responsive while checking StrongLifts on the phone
- Poll result every 500ms via root.after instead of blocking main thread
- Show success screen for 1.5s before auto-unlocking when verified
- Target specific ADB device via -s flag using saved phone_config.txt
to avoid errors when multiple devices (USB + wireless) are connected
- Demo mode uses local grab_set() instead of grab_set_global() so it
works alongside other fullscreen apps
- Stub _start_phone_check in create_locker to prevent background threads
leaking into unrelated tests (fixes flaky test_run_adb_success)
- 112 tests passing, 100% branch coverage
