Tags: alexcr/tx

feat: trim tx status to active resources

Full `tx status` now lists only projects that have at least one worktree,
and shows the DB section only when the db is actually running — both were
noise otherwise. A scoped `tx status <project>` still shows the named
project even when it has no worktrees.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>