Update the PsychicMqttClient to set a _config_dirty flag whenever a configuration setter is called. This ensures that the MQTT configuration is only applied when changes are made, optimizing the connect and reconnect processes. Added logging to indicate whether the configuration was updated or unchanged.
Refactor the MQTTBridge to implement enhanced QoS handling for publish operations. Introduce retry mechanisms for QoS0 packets, allowing for transient failures to be retried with a delay. Update publish methods to return success status, improving error handling and logging. Additionally, adjust the packet queue processing to accommodate new retry logic and ensure better message delivery control.
This commit introduces a new `reconnect` method in the `PsychicMqttClient` class, allowing for re-establishing a connection to the MQTT broker without needing to disconnect first. The method checks if the client is initialized, updates the configuration if necessary, and attempts to reconnect, enhancing the overall connection management. Additionally, the MQTT slot management has been updated to support up to 6 configurable slots, improving flexibility in connection handling.
- Main broker: only allocate _mqtt_client when custom broker configured
(analyzer-only saves one PsychicMqttClient). Reconnect main broker after
forced disconnect with 30s throttle; set last_attempt on disconnect so
throttle applies and avoids reconnect storms on flaky WiFi.
- Analyzer clients: call disconnect() when WiFi transitions to disconnected
so ESP-IDF frees MQTT buffers (it does not free on WiFi drop). Reduces
fragmentation and Max drop after disconnect/reconnect cycles.
- get wifi.status: report WiFi uptime (Xd Xh Xm Xs) when WITH_MQTT_BRIDGE.
Track connect time in bridge; backfill when already connected at first check.
- get mqtt.status: show msgs on/off, broker (connected/disconnected/n/a),
analyzer US/EU (connected/disconnected/off), and queue count.
Note: PsychicMqttClient change (register event only on first client creation)
belongs in the library repo if committed separately.