- Add viewport-aware positioning/clamping for Quick Scripts and Quick Entry dropdown menus
- Implement long-press context menu behavior in FileBrowser with iOS momentum scrolling support
- Expand dashboard CSS and component logic to stabilize mobile overlay behavior and remove unused inline WebKit style
- Add focused tests for FileBrowser, QuickScriptsDropdown, and mobile dropdown positioning plus README notes
- Add backend file operations (copy, move, delete, rename, download) in file-service.ts with workspace root protection
- Add API routes for file operations including directory download as zip via archiver
- Add client API functions in api.ts for all file operation endpoints
- Add context menu UI in FileBrowser component with operations dialog for confirming destructive actions
- Add CSS styles for context menu including danger items and dividers
- Add 33 FileBrowser context menu tests and 485+ file-service tests
- Fix pre-existing test failures in routes-diff, mission-e2e, and theme sync tests
