3aac195626
BLE filtering: - Replace UUID service filter with company_id 0xffff filter in manufacturer_data — Zephyr firmware does not announce a service UUID - Remove preamble skip in decode_payload (i=0 instead of i=2) since company_id is handled by the BLE stack and not in raw bytes - Fix endianness: switch temperature and CO2 decoding from little-endian to big-endian to match Zephyr firmware implementation MQTT validation: - Add on_connect callback to confirm successful connection to broker - Log error with reason code if connection fails - Add on_publish callback to confirm message delivery to broker - Replace synchronous connected log with async connecting log Validated end-to-end: Thingy:52 data received and confirmed by broker