* feat: add 'Open files in preview mode' setting
- Add defaultFileViewerPreview setting to persist user preference for file viewer default mode
- Add checkbox in Settings → Sessions → Session Defaults to toggle the setting
- Files now open in preview mode by default when setting is enabled
- Respects per-file-type localStorage persistence for markdown/HTML/JSON files
- Setting persists across sessions via /api/config/settings endpoint
* fix: address PR review feedback
- FilesView: respect HTML localStorage preference in file-change effect,
falling back to global setting only when nothing stored
- DefaultsSettings: read defaultFileViewerPreview directly from config store
instead of redundant local state + separate fetch
- DefaultsSettings: extract duplicated toggle logic into
handleToggleFileViewerPreview callback
* fix: honor default preview setting for markdown files
Previously mdViewMode only read localStorage on mount (deps: []), so
when settingsDefaultFileViewerPreview was enabled and no MD_VIEWER_MODE_KEY
was stored, markdown files silently opened in edit mode — ignoring the
setting for the very file type users most want to preview.
Fold md init into the per-file-change effect, mirroring the html handling:
localStorage preference wins, falling back to the setting-derived default.
The saveMdViewMode callback stays untouched so user-initiated toggles
still persist.
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Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
* feat(chat): add arrow key navigation for thinking mode in model selector
Adds keyboard arrow key navigation for thinking mode selection within the model picker, enabling a fully keyboard-driven workflow for model and variant selection.
Changes:
- Model Selector: Added ←/→ arrow key handling to cycle thinking variants while picker is open
- Introduced transient state to track per-model variant selections during picker lifecycle
- Updated metadata display logic to show thinking mode only after adjustment with arrow keys
- Added contextual footer hints that appear only when highlighted model supports thinking variants
- Modified Enter key behavior to apply both selected model and pending thinking variant together
- Help Dialog: Added in-picker navigation shortcuts (↑↓ navigate, ←→ adjust thinking)
- Documentation: Updated CHANGELOG.md files with feature entry
Behavior:
- Navigate models with ↑↓, adjust thinking with ←→, press Enter to apply both
- Footer hints update dynamically based on highlighted model capabilities
- Thinking display persists only for models adjusted with arrow keys
- No-op for models without variants (clean, no feedback)
Testing:
- Type-check, lint, and build all pass
- Manual testing verified on dev server
