Three routing fixes: - transition.md checks for CONTEXT.md before routing — discuss-phase when missing, plan-phase when present (matches progress.md behavior) - execute-phase.md offer_next delegates to transition.md instead of emitting duplicate "Next Up" blocks - discuss-phase.md adds explicit handling for "Other" free-text responses Closes #530 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>