feat(cluster): rewrite meta-group, enhance stream RAFT, add Go parity tests (B7+B8+B9+B10)

- JetStreamMetaGroup: validated proposals, inflight tracking, consumer counting, ApplyEntry dispatch
- StreamReplicaGroup: ProposeMessageAsync, LeaderChanged event, message/sequence tracking, GetStatus
- PlacementEngine tests: cluster affinity, tag filtering, storage ordering (16 tests)
- Assignment serialization tests: quorum calc, has-quorum, property defaults (16 tests)
- MetaGroup proposal tests: stream/consumer CRUD, leader validation, inflight (30 tests)
- StreamRaftGroup tests: message proposals, step-down events, status (10 tests)
- RAFT Go parity tests + JetStream cluster Go parity tests (partial B11 pre-work)
This commit is contained in:
Joseph Doherty
2026-02-24 17:23:57 -05:00
parent a323715495
commit 1257a5ca19
9 changed files with 4268 additions and 13 deletions

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