Suspend failed ESP32 MQTT and NTP uplinks for power saving

Share one bounded WiFi outage and recovery schedule across MQTT, automatic NTP, Companion station ownership and WebConfig. Preserve enabled settings and foreground access while allowing normal sleep after confirmed physical shutdown.

Honor failed SDK client stops before handing off WiFi, protect clean teardown and reconfiguration, and retry transient ESP-NOW channel restoration without repeated disconnects. Add production-method, SDK failure and real sleep regressions to CI.

Validation: native MQTT/NTP/clock/reconnect suites; production power and wrapper failure tests; browser, room HTTP, OTA and combined bridge regressions; Full Heltec V4 repeater, room and companion builds with capability, flash and linked-memory checks.

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

@@ -222,10 +222,15 @@ jobs:
           python3 -B test/test_mqtt_transport_results.py -v
           python3 -B test/test_mqtt_tls_security.py -v
           python3 -B test/test_mqtt_network_timeout.py -v
+          python3 -B test/test_mqtt_disconnect.py -v
           python3 -B test/test_mqtt_connection_admission.py -v
           python3 -B test/test_mqtt_handshake_scheduler.py -v
           python3 -B test/test_mqtt_diagnostics.py -v
           python3 -B test/test_mqtt_publish_ack.py -v
+          python3 -B test/test_wifi_network_power_policy.py -v
+          python3 -B test/test_mqtt_wifi_network_power.py -v
+          python3 -B test/test_companion_wifi_network_power.py -v
+          python3 -B test/test_webconfig_network_power.py -v
 
       - name: Verify DNS lease restoration and bounded diagnostics
         run: python3 -B test/test_network_dns.py -v