- Truncate accumulated stdout/stderr to last 64KB before persisting FlowStep
to prevent unbounded DB growth on verbose commands
- Add @@index([user_id, started_at(sort: Desc)]) to FlowRun schema so audit
list queries (WHERE user_id = ? ORDER BY started_at DESC) use the index
- Add migration 20260513200000_flowrun_user_idx
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>