- AbstractMqttConsumer: remove private executorService, use constructor injection - MqttDynamicConsumer/MqttChargeStationConsumer: remove private core/write executors, inject via @Qualifier from ExecutorConfig - ExecutorConfig: add mqttCoreExecutor, mqttWriteExecutor, abstractConsumerExecutor with destroyMethod="shutdown" - VehicleSyncTask: refine scanKeys() exception handling, add per-record try-catch in doUpdateSysCar() loop - Remove unused jjwt 0.9.1 (CVE-2019-17195) and springfox-boot-starter 3.0.0 deps