- loop_uart_proto.h: LUP_CoilSensor.misc 联合体新增 relay_count - tcp_json_srv.c: format_sensor_json 处理 misc_type=3 → relay_count - docs: 更新协议文档至 V1.04
- loop_uart_proto.h: LUP_CoilSensor.misc 联合体新增 relay_count - tcp_json_srv.c: format_sensor_json 处理 misc_type=3 → relay_count - docs: 更新协议文档至 V1.04