Follow-up to #78:
- Use primaryIp() so href targets the first IP when data.ip is comma-separated (e.g. "192.168.1.1, 2001:db8::1")
- Add primaryIp() helper to maskIp.ts
- Add 4 tests covering single IP link, absent IP, multi-IP href, multi-IP display text
- Display IP as a clickable link that opens http://<ip> in a new tab
- Match the existing Hostname link styling and behavior
- Add external link icon to indicate it's clickable
- 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
- Add 'Delete' to deleteKeyCode so both Backspace and Delete remove nodes
- Call snapshotHistory() in onBeforeDelete (keyboard) and in DetailPanel
handleDelete (button) so deletions can be undone with Ctrl+Z
- Any TCP service (except port 22 and known non-HTTP protocols) is now
clickable — fixes Sonarr, Radarr, Jellyfin, Proxmox web UI, etc.
- HTTPS auto-detected for port 443/8443 or names containing ssl/tls/https
- Non-HTTP blocklist: FTP, SMTP, DNS, LDAP, SMB, MySQL, Postgres,
Redis, MongoDB, Kafka, Memcached, etc.
- Inline "Add service" form in detail panel (name, port, tcp/udp)
- Remove button (×) on hover for each service row
- Group rect nodes excluded from detail panel
- getServiceUrl extracted to utils/serviceUrl.ts
- 13 new tests (79 total, all pass)