A NATS reconnect re-hydrates the pins map from the DB without OnApply, so
a frontend that missed an unpin kept serving the old pin and flip-flopped
with the leader's republish. Every frontend now reconciles the manager's
pins with the shared set every ten ticks and after a reconnect, and the
pins map re-reads the DB every 30 s to repair a delta dropped without a
reconnect.
Assisted-by: Claude:claude-opus-5-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>