mqtt ready to be implemented

test1/src/bin/mqtt_docs.md

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+# MQTT Implementation Notes
+
+* WiFi connection runs in a separate task with auto-reconnect functionality
+* Network stack operates in a dedicated packet processing task
+* MQTT uses TCP socket connection (MqttClient wraps this socket)
+* ClientConfig specifies: MQTT version, QoS levels, client ID
+* Standard flow: connect_to_broker() → send_message() or subscribe()
+
+## Implementation:
+1. Perform DNS lookup for broker hostname
+2. Establish TCP socket connection
+3. Create MqttClient with configuration
+4. Implement connect, publish, and subscribe logic