A full resync is not a cheap retry

01 · Before and afterThe pattern

Gate a destructive recovery on observed state and a single in-flight guard.

let resetting: Promise<void> | null = null;
syncState$.subscribe(s => {
  if (s.status !== 'stuck' || resetting) return;   // before: setTimeout(reset, 0 / 5000 / 15000) on every mount
  resetting = engine.forceFullResync({ timeoutMs: 30_000 })
    .catch(err => log.warn('reset failed', err))
    .finally(() => { resetting = null; });
});

02 · Run it on your appThe check

Can you list every place your app forces a full resync, and does each one fire only when sync is provably stuck?

If the honest answer is no or not sure, this is worth a look before it reaches production.