* 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
* feat: add /undo, /redo, /timeline slash commands and fork button
- Add /undo command to revert to previous user message
- Add /redo command to redo previously undone messages
- Add /timeline command to show conversation history
- Add fork button on user messages (hover) to create new session
- Add TimelineDialog component for navigating conversation history
- Show undo/redo/timeline in autocomplete when session exists
- Fix fork to use SDK session.fork API
- Silent no-op behavior for undo/redo when no messages (matches OpenCode CLI)
* fix: correct fork session endpoint and session switching
- Add hybrid SDK approach using v1 for existing methods and v2 for fork only
- v2 SDK has correct endpoint /session/{sessionID}/fork instead of broken /session/{id}/fork
- Fix forkFromMessage to use setCurrentSession instead of direct set
- Ensures both useSessionStore and useSessionManagementStore are consistent
- Fixes issue where forked sessions appeared empty until sending a new message
* fix: use direct fetch for fork to avoid v2 SDK build errors
- Remove v2 SDK imports and hybrid SDK approach
- Use direct fetch() call to /api/session/{sessionID}/fork endpoint
- Avoids type conflicts between v1 and v2 SDK
- Bypasses broken v1 SDK fork endpoint (wrong path parameter)
- All codebase now uses v1 SDK consistently
* fix: use jsonc-parser for config file parsing
- Replace strip-json-comments + JSON.parse with jsonc-parser
- Handles comments, trailing commas, and unquoted keys
- Matches OpenCode CLI config parsing behavior
- Fixes SyntaxError when reading global opencode.json config
* feat: improve timeline dialog with loading state and search
- Add loading spinner on fork button during operation (~30s on big sessions)
- Refresh session list after fork so new session appears in sidebar immediately
- Add search bar to filter messages by prompt text content
- Show 'No messages found' when search has no results
- Disable fork button while forking to prevent duplicate operations
* feat: add UI customization and model management features
Add comprehensive UI customization options and enhanced model selection:
- **Favorite & Recent Models**: Star models for quick access, track 5 most recent
- Add favorite/recent sections to model dropdowns
- Persist preferences in local storage
- Works in ModelControls and ModelSelector components
- **Tool Call Expansion Settings**: Control default expansion state for tool outputs
- Three modes: collapsed, activity (summary), detailed
- Applies to activity groups and individual tool calls
- Configurable in Appearance Settings
- **Font Size & Spacing Controls**: Adjustable typography and layout density
- Font size: 50-200% scaling of all semantic typography
- Spacing/padding: 50-200% scaling of margins, gaps, line heights
- Real-time preview with reset buttons
- Settings in Appearance Settings
- **VSCode Extension Settings View**: Full settings access in VSCode extension
- Add settings navigation and view type
- Settings button in header
- Navigate between sessions, chat, and settings
Technical changes:
- Enhanced useUIStore with new state management
- Dynamic CSS variable scaling for typography and spacing
- Typography helper functions for variable access
- ThemeProvider integration for auto-applying scales
* fix: hide theme mode in VSCode and fix detailed tool expansion
- Hide "Theme Mode" setting in VSCode extension settings as VSCode
dynamically applies its own theme to the extension
- Fix bug where tools from subsequent messages in a turn weren't
expanded when "Detailed" mode was selected
- Now correctly aggregates all tool IDs from turnGroupingContext when
calculating effective expanded tools for progressive groups
Bohdan Triapitsyn