Stop a Planner workflow that is waiting on a Decisions question

Atomic pauses running and pending stages only, so Stop Planner on a run
whose live stage was waiting on a question changed nothing, while the
transcript said it paused. Read the workflow tool's reported status,
and when a pause changes nothing, quit each live run instead: quitting
keeps the run resumable, withdraws its open question from Decisions,
and asks it again on resume. A run that neither pause nor quit can stop
reports the failure in Chat.

Assistant-model: Claude Opus 5.5
Assistant-workflow: inline
Assistant-verification: bun test passed: 1755 pass, 2 PostgreSQL skips, 0 fail, including pause, quit fallback, and unstoppable-run failure
Assistant-verification: bun run types passed: all workspaces
Assistant-verification: bun run ci passed: dprint, oxlint, tokens, type scale, Impeccable (no new findings)
Assistant-verification: agent-browser E2E failed before this change: Stop Planner on a run waiting in Decisions left the run card running
User-preference: A pause in the Planner pauses its workflows and resume resumes everything
Co-authored-by: Alex Lavaee <lavaman131@github.com>