Start the current batch together; nested dependencies join the next tick.

Queue immediately, independent of React. Return a shared Promise for one resource. Errors are retained until retry; successful remote snapshots default to 60s TTL.

Drop matching resources and reject their waiters. Late results cannot install. Used by auth changes as well as explicit refreshes.

Install a valid opt-in snapshot synchronously, before the loading branch.

Observe a ratom without creating a React subscription. Always remove the watch.