Add saved Companion sound and vibration controls

Default fresh settings to sound off and vibration on, and keep existing saved choices. Apply changes immediately across all three UIs and make custom notification patterns respect the same mute controls.

Keep the Wio Mini Companion within its existing flash boundary by storing its LED switch in a reserved preference byte and shortening CLI help without removing commands. Add coverage for live output changes, persistence, and storage failures.

Adapted from https://github.com/meshcore-dev/MeshCore/pull/3603.

Co-authored-by: R0ck <develop@hectospark.co.uk>

.github/workflows/run-unit-tests.yml

@@ -971,7 +971,14 @@ jobs:
           python3 -B test/test_ui_startup_windows.py -v
           node test/test_notification_builder.js
           python3 -B test/test_notification_settings.py
+          python3 -B test/test_companion_alert_control.py -v
+          python3 -B test/test_companion_compact_led_control.py -v
+          python3 -B test/test_companion_alert_drivers.py -v
           python3 -B test/test_notification_led_ownership.py -v
+          python3 -B test/test_led_settings.py -v
+          python3 -B test/test_board_led_policy.py -v
+          python3 -B test/test_status_led_policy.py -v
+          python3 -B test/test_nrf52_led_policy.py -v
           python3 -B test/test_mono_led_rollover.py -v
           python3 -B test/test_backlight_poll_rollover.py -v
           python3 -B test/test_rgb_led_rollover.py -v