report.Waiter holds a hanging GET against hub /api/v1/wait?gen=N (same hub
URL+key as the pusher). On a generation change it fires the v0.139.0
report.Trigger — nothing else; the report ACK delivers everything through the
unchanged machinery. No overall client timeout (held GET); per-request ctx
bounds a dead connection. First-observation records-not-fires; same-gen
timeout fires nothing; errors (incl. 404 from a pre-v0.58.0 hub) back off
5s->5min while the 15-min cycle reconciles. Wired beside the trigger under the
same hubPusher!=nil && Hub.Enabled gate.
Red-proof: disable the baseline branch -> first observation fires
(TestWaiter_FirstObservationRecordsNoFire), run-fail-reverted.
Copy soften: backups_remote/escrow "néhány másodperc, legfeljebb 15 perc".
Pairs with hub v0.58.0. Grounding:
felhom.eu/documentation/audits/SPIKE-immediate-sync-transport-2026-07-16.md
