Juno-master standalone coordinator entry point. Full-cluster tests. Two test flavours: InProcessClusterIT — 3 CyclicForwardPassHandlers chained via LocalInferencePipeline, single JVM, zero network, fast feedback loop. ThreeNodeClusterIT — 3 real JVM node processes launched via ProcessBuilder, each on a separate gRPC port, connected by a ProcessPipelineClient that wires the coordinator to them. ModelLiveRunnerIT — live model tests across all models listed in the MODELS ...