Desktop 2026-09-06

What's Changed

• feat(ui): redesign onboarding and file review workflow by @mssssss123 in #550
• fix(ui): stabilize streaming scroll and deduplicate live status by @mssssss123 in #551
• fix(chat): keep one global model choice across conversations by @mssssss123 in #552

Full Changelog: desktop-v2026.09.04...desktop-v2026.09.06