Resolves the room-lifecycle class on top of the salvaged #89369 projection:
- v3 projection keys rooms by immutable roomId (id:<roomId>) with
name:<name> fallback for legacy rooms; v1/v2 envelopes are normalized
on read so mixed-version fleets share one merge path
- rename is now a same-key field update — no distributed delete+create,
no old-name resurrection from lagging gateways
- id tombstones are FINAL (ids are never reused), so a gateway that was
offline during a disband can never resurrect the room, regardless of
the revision its stale copy carries; same-name recreation is unaffected
because it mints a fresh roomId
- the projection fans out to EVERY reachable default-profile gateway
(per-gateway job queues, CAS revision streams, backoff and retry caps),
so rooms survive any single gateway dying and surface on gateway-only
clients without waiting for a Desktop to foreground that gateway
- cold hydrate follows a remote rename via roomId instead of duplicating
the room under both names
New tests: id-keyed rename continuity, final id-tombstones vs lagging
high-revision copies, rename-job shape (changed+deleted same key),
cold-hydrate re-keying, multi-gateway fan-out. Sabotage-verified: each
new test fails against the pre-class behavior.
Teknium
c6745da72b