Observer rewrite of the door key, variant log order, replica log sequences with
and without a local write, 4x5000 concurrent writers, a write after a database
delete, shard-snapshot resync, and a disposed database.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Commit and upsert, database put/delete, replicated put, load removal and a base
edit re-resolving a variant dependent, each observed by a real subscriber.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
