- Fix modal entry flow, navigation, and reset behavior for mobile
- Apply mobile theme fixes and navigation improvements across dashboard
- Enhance ChangedFilesModal with mobile-friendly behavior and responsive layout
- Add comprehensive tests for ChangedFilesModal mobile interactions
- Fix orphaned pause path in executor and remove unused code
- Update dashboard README with mobile changed-files viewer documentation
- Add mobile-specific CSS styles for improved responsiveness
- Remove stale changeset for orphaned pause path fix
- Redesign ChangedFilesModal as a two-view navigation flow (file list → file detail) with back navigation
- Fix theming and loading/reading ergonomics for the diff viewer
- Enhance useChangedFiles hook with improved loading and error states
- Add comprehensive tests for modal navigation, diff rendering, and edge cases
- Update styles with mobile-friendly layout and diff viewer improvements
- Update dashboard README with mobile navigation description
- Add backend API endpoint /api/tasks/:id/diff for file diffs
- Add useChangedFiles hook for fetching and managing diff state
- Create ChangedFilesModal component with file list and diff viewer
- Integrate modal with TaskCard via files changed badge click
- Add CSS styling for changed files layout and diff display
- Add keyboard navigation (Escape to close)
- Include unit tests for ChangedFilesModal component
- Add backend API endpoint to get changed files and diffs for a task worktree
- Add useChangedFiles hook for fetching and managing diff data
- Create ChangedFilesModal component with file list and diff viewer
- Integrate modal into TaskCard with click handler to view changes
- Add frontend API integration and type definitions
- Include unit tests for hook and modal components
- Add changeset for the new feature
- Remove deprecated mission-related test files
