- Top-level admin menu (sortOrder 78) with PNG icon CSS aligned to core menu
- Dedicated MageSail system config tab before General; ACL/docs paths updated
TunnelStoreProvisioner expands bare hosts to http:// for unsecure and
https:// for optional secure; full URLs still work. Tunnel block strips
scheme for prefill display. Update tunnel template copy, Index error
text, and README/docs.