Add file management API and UI components
Implement directory listing, search and CRUD operations in desktop backend
Expose new Files API on frontend to list, search, and modify files
When diff content exceeds 1500 lines or 150KB, show a placeholder with
"Load Diff" button instead of parsing immediately. This prevents the page
from freezing when viewing large diffs.
Co-authored-by: Jovines <jovines@qq.com>
* feat: add Files tab for browsing workspace files
- Add Files tab between Diff and Terminal in header
- Implement hierarchical file tree with expand/collapse
- Add fuzzy search with debouncing and relevance ranking
- Support gitignore filtering via `git check-ignore` (web + desktop)
- Add syntax highlighting for 150+ file types
- Add image preview (SVG, PNG, JPG, etc.)
- Add line numbers, wrap toggle, and copy button
- Desktop: split-pane layout matching DiffView
- Mobile: drill-in navigation with full-width sidebar
- Update help dialog with Cmd+3 shortcut
- Increase header breakpoint to 940px for new tab
* feat: enhance context and session stores to track agent/model/variant choices for historical sessions
* feat: implement line selection and commenting functionality in FilesView
Bohdan Triapitsyn