0b89244317
- Add lasso/box selection via selectionOnDrag (Space to pan, lasso by default) - Add lasso/pan toggle button in canvas controls (bottom-left) - Multi-select panel in right panel when 2+ nodes selected (including zones) - Create named Group node from selected nodes with bounding box math - Group node: resizable, inline rename, show/hide border toggle, status summary - GroupDetailPanel: lists members, online/offline count, ungroup action - Fix group persistence after save/reload (extend proxmox container map to include group nodes) - Fix groupRect serialization to preserve parent_id - Remove background color from group and proxmox container node wrappers - Add tests for all new store actions, GroupNode, MultiSelectPanel, GroupDetailPanel