v0.21.5

Changelog

• 72e2a59 chore(release): bump to v0.21.5
• 5e4ace0 feat(sync): rich markdown descriptions, read-only checklists, and git diff chips
• 0c5f496 feat(terminal): add customizable darkened blurred background image
• ff42e15 feat(ui): add shortcut hint overlays on rail and tabs; fix done vs inactive false positives
• 998a427 feat(web): context-aware modal actions with dropdown menu and image copy
• 165a9b5 feat: add Ctrl+` shortcut to toggle focus between terminal and input box
• d07f017 feat: add panel resize shortcuts, touch drawer resizing, and content zoom menu
• 8d86db0 fix(desktop): eliminate purple strobe when switching servers or updating accent
• cb6523c fix(desktop): prevent TBAR race condition and wedge on rapid server switching
• 678d343 fix(diff): stabilize comment gutter and add modal size toggle
• 8d251a9 fix(terminal): preserve scrollback history and fix scroll follow stability
• d7da0e7 test(desktop): fix types and unused vars in tbar-wedge test