matsandClaude Opus 4.8
8b454bccac
- Generic SnapshotWriter[T]/SnapshotReader[T] over a value-agnostic raw layer; SnapshotHolder[T] now RWMutex-guards munmap vs in-flight Get (race-free swap, TestSnapshotHolder_SwapRace) — the drain grace is now just close-batching. - ProjectionStore[T]: snapshot begin|chunk|end assembly → atomic swap, epoch-gated delta overlay, tombstones, atomic epoch sidecar (ordered before the swap), cold-start reopen, mandatory ProjectionTransform[T]. Future-epoch deltas are dropped by contract (recover via next snapshot), not buffered. - Shared bus-framing constants so producer + consumer agree. - Bump slask-finder / go-cart-actor / backoffice pointers; refresh status.md + catalog-projection.md to the finished state. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>