- Copy/paste/duplicate now uses obj.clone() instead of broken fromObject() serialization
- Ctrl+C stores actual object refs, Ctrl+V clones them — works for images, groups, paths, text
- System clipboard copy (Ctrl+C / Ctrl+Shift+C) properly re-selects after screenshot
- Layer panel: double-click to rename, collapsible groups with expand/collapse arrow
- Auto-indexed names: Image 1, Image 2, Drawing 1, Drawing 2, etc.
- Group children visible in layer panel when expanded
- Copy/paste works on groups and mixed multi-selections