Add comprehensive tests for the get_rssi() method in AndroidBLEInterface
and signal metrics capture in reticulum_wrapper.
New test files:
- test_android_ble_interface.py: 9 tests for AndroidBLEInterface.get_rssi()
- test_ble_modules_android_ble_interface.py: 7 tests for ble_modules version
Updated test_wrapper_messaging.py:
- Add TestOnLxmfDeliverySignalMetrics class with 4 tests verifying
RSSI and SNR capture during LXMF message delivery
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
