nwc: publish 13194 info event only when missing, recheck hourly

NWC clients (Alby Go, Lightning Piggies) fetch the kind 13194 info event
(capability advertisement) before they'll talk to the wallet; without it
they report "no info event" and show an unknown balance. The events went
missing after strfry restarted on 2026-05-29 and stayed gone for days,
because the app only published them once in the relay's on-open handler
and nothing re-asserted them.

13194 is a replaceable event meant to persist, so instead of blindly
republishing, query the relay on connect and publish only the server
pubkeys whose info event is actually missing (ensureInfo). Re-check
hourly so a relay restart that leaves our socket intact also self-heals.
Interval is cleared on close/reconnect alongside the heartbeat to avoid
leaks.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

0 files changed, 0 insertions, 0 deletions