- New RenameModal component with validation
- Backend endpoint supports filename updates (rejects path separators)
- Context menu "Rename" option in grid and list views
- Inline rename button in list view actions
- Add Print button to multi-selection toolbar:
- Appears when exactly one sliced file is selected
- Opens full PrintModal with plate selection and options
- Add to Queue button now uses Clock icon for clarity
- Improve mobile/PWA accessibility:
- Three-dot menu button always visible on mobile (md:opacity-0)
- Selection checkbox always visible on touch devices
- Better experience for PWA users on tablets and phones
Closes#94