v0.19.14

What's new

• Thread orchestrator support — a bundled skill that lets one thread supervise several peers: per-thread notes, proposed replies for human review, and event-driven wake-up (#310)
• Fix: scheduled wake-up indicator no longer stays hidden until an unrelated re-render forces it (#312)
• Fix: git-diff-bar button now correctly shows "View PR" when the thread already has an open PR (#315)
• Test infra: pinned the harness clock in bridge-aware/mobile screenshot specs, fixing baselines that silently drifted a day at a time (#301)