25 tasks across 6 waves targeting ~1,415 new tests: - Wave 2: Internal data structures (AVL, SubjectTree, GSL, TimeHashWheel) - Wave 3: FileStore block engine with 160 tests - Wave 4: RAFT consensus (election, replication, snapshots, membership) - Wave 5: JetStream clustering + NORACE concurrency - Wave 6: Remaining subsystem test suites (config, MQTT, leaf, accounts, gateway, routes, monitoring, client, JetStream API/cluster)