[help wanted] Cmd/Ctrl+K Quick Switcher — fuzzy search across sessions

[GoDiao]

Background

We just landed sessionsById for O(1) lookups, but there is still no UI for fuzzy-finding a session by title or recent message content. fuse.js is already a dependency.

Quick-switchers are the kind of feature that users immediately notice — a great PR to be proud of.

Tasks

• Register a global shortcut Cmd/Ctrl + K to open a centered command palette
• Index every session by title + last assistant message using fuse.js
• Render top 10 matches with keyboard navigation (↑ ↓ Enter Esc)
• On Enter, switch to the matching session
• (Bonus) Recent sessions on top when query is empty
• Respect i18n for the placeholder copy

Files

• desktop/src/components/ (new CommandPalette/ folder)
• desktop/src/stores/sessionStore*
• desktop/src/hooks/ (global shortcut hook)

Difficulty / Estimate

⭐⭐ — half a day for a clean implementation.

Mentor

Maintainer can review UX details (animation, focus trap, scroll into view).