Admins can now permanently delete a group once it has been closed. Deleted groups are hidden from listings and dropdowns everywhere, while existing client memberships and referral history stay intact on the record.

What's New

• A Delete Permanently button appears on the Group Details header when a group is Closed (admin only)
• Confirmation modal makes the action explicit before it commits
• Soft-delete: group listings, minified dropdowns, and the assignment picker all auto-exclude deleted groups
• Client and referral records still reference the original group for audit