c75c7c5599
Four related state-leak bugs surfaced by the new-interface audit:
1. fetchSpeakerCatalog launched a fire-and-forget coroutine that
wasn't tracked per-pubkey. With the wrapper's re-issuing
handle the catalog subscription survives session swaps —
and a removed speaker's collector kept re-adding the
catalog map entry on every emission. Fix: per-pubkey job map
(catalogJobs); cancel on closeSubscription before dropping
the map entry.
2. teardown() cleared activeSpeakers / speakingNow / announces
but not _speakerCatalogs. Stale catalog data accreted
across reconnects + room swaps. Fix: cancel every catalog
job and reset the map alongside _announcedSpeakers.
3. teardown()'s _uiState.copy(...) reset activeSpeakers and
speakingNow but not connectingSpeakers. The pre-roll spinner
could persist on stale pubkeys after a disconnect. Fix:
include connectingSpeakers in the same copy.
4. fetchSpeakerCatalog ran BEFORE the abandoned-subscription
re-check in openSubscription, so a removed speaker's catalog
subscription opened anyway. Fix: move the catalog kick-off
to after the re-check + after slot.attach (the catalog needs
a confirmed-attached audio slot to be cancellable via
closeSubscription).