Merged as v0.50.226.
Integration branch absorbed @aronprins's original PR #1141 with one reviewer fix from @nesquena (`1d11646`: queue hide tooltip updated to reference the queue pill, not the removed titlebar badge).
**Full gate results:**
- 2595 tests passing ✅
- Browser QA 21/21 (desktop 1440×900 + mobile iPhone 14) ✅
- Independent review: APPROVED by @nesquena ✅
Thank you @aronprins for the clean PR — the titlebar is properly restored.
