Add bounded Morse receive and negotiated RS232 autosleep

Add native narrow-band CW capture, ACK-first remote sessions, retained LoRa-readable pages, checked restoration and transport-safe progress. Add stock-compatible negotiated heartbeat/autosleep and recovery. Include host regressions and identity-bound HIL runners; keep unverified faster tuning HIL-only and document outstanding hardware validation.

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

@@ -222,6 +222,9 @@ jobs:
           python3 -B test/test_rs232_runtime.py -v
           python3 -B test/test_rs232_mqtt_runtime.py -v
           python3 -B test/test_rs232_driver_lifecycle.py -v
+          python3 -B test/test_rs232_heartbeat.py -v
+          python3 -B test/test_rs232_heartbeat_owner.py -v
+          python3 -B test/test_rs232_power_settings.py -v
 
       - name: Verify saved repeat-off trace exception and relay guards
         run: |
@@ -332,6 +335,14 @@ jobs:
       - name: Verify temporary-radio timing and exact reply delivery
         run: |
           python3 -B test/test_carrier_wave.py
+          python3 -B test/test_morse_tx.py -v
+          python3 -B test/test_morse_rx.py -v
+          python3 -B test/test_morse_cli.py -v
+          python3 -B test/test_morse_auth.py -v
+          python3 -B test/test_morse_reply_handoff.py -v
+          python3 -B test/test_morse_remote.py -v
+          python3 -B test/test_morse_loop_policy.py -v
+          python3 -B test/test_morse_terminal_input.py -v
           python3 -B test/test_radio_profile_cli.py
           python3 -B test/test_radio_profile_spiffs_missing.py -v
           python3 -B test/test_radio_reply_mutation.py