Phase A3 of docs/FIPS-UPTIME-AND-UI-STATE-PLAN.md (RC5), measured against
the A2 dial_stats baseline:
- 25s connectivity watcher in the fips supervisor: re-applies seed anchors
immediately on an anchor-link drop, on startup-disconnected, AND on
silent data-path death (connect_fails growing with zero fips_ok — the
live .198 failure where the daemon reported "connected" while every
dial blackholed and the 300s tick never healed it). Bounded to one
re-apply per 60s.
- anchors::apply is now concurrent with a 15s per-connect cap — the old
serial loop waited unbounded on each `sudo fipsctl connect`, so one
hung subprocess stalled the whole periodic tick.
- rebindable peer listener: the accept loop returns after persistent
accept errors (was: continue forever = inbound-dead until restart) and
peer_late_bind_loop rebinds — also on fips0 ULA change.
- is_service_active gets a 10s TTL cache (was up to 2 systemctl spawns
per dial attempt and per warm-tick peer).
- the warm tick now warms the union of federation peers + configured
seed anchors (direct anchor links used to go cold between 300s ticks),
skipping the redundant per-peer service check.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>