sessions.create reset-in-place persists the retired worktree's removedAt
before the RPC resolves, but a successor worktree create that rolled the
same random crustacean slug (1/420) hit nameIsUnavailable's owner-match
bypass and silently restored the retired registry record, clearing
removedAt and reviving the old branch (flaked
server.sessions.create.test.ts reset-in-place).
Generated names (title slugs and random slugs) now treat the caller's
removed records as collisions and take a numeric suffix; explicit
worktree names keep their documented reuse/restore semantics.
Peter Steinberger
38a5390e2e