4.0.0 com.lingniu.ingest lingniu-vehicle-ingest 0.1.0-SNAPSHOT observability observability Micrometer + Prometheus + 业务指标封装（事件计数、Dispatcher 耗时、DLQ 计数等）。 com.lingniu.ingest ingest-api com.lingniu.ingest ingest-core org.springframework.boot spring-boot-starter-actuator io.micrometer micrometer-registry-prometheus