Add invite links with admin-configurable config creation limits.

Admins can create shareable links that allow redeeming a VPN config a set number of times (or unlimited).

Co-authored-by: Cursor <cursoragent@cursor.com>

translations/en.json

@@ -1,6 +1,7 @@
 {
   "nav_servers": "Servers",
   "nav_users": "Users",
+  "nav_invites": "Invite links",
   "nav_settings": "Settings",
   "nav_connections": "Connections",
   "nav_logout": "Logout",
@@ -196,6 +197,41 @@
   "guest_not_found": "404 Not Found",
   "guest_not_found_desc": "Guest access is disabled or the link is invalid.",
   "wrong_guest_password": "Wrong password",
+  "invites_title": "Invite links",
+  "invites_hint": "Create shareable links. Anyone with the link can create a VPN config — you set how many times.",
+  "invites_empty": "No invite links yet",
+  "invites_empty_desc": "Create a link and share it — no registration needed.",
+  "invite_create": "Create link",
+  "invite_edit": "Edit link",
+  "invite_active": "Active",
+  "invite_expired": "Expired",
+  "invite_exhausted": "No uses left",
+  "invite_uses": "Uses",
+  "invite_name_label": "Link name",
+  "invite_max_uses_label": "Max configs",
+  "invite_max_uses_hint": "How many configs can be created via this link. 0 = unlimited.",
+  "invite_user_label": "Store configs under user",
+  "invite_user_hint": "Created configs are attached to this panel user (for management).",
+  "invite_user_required": "Select a user to store configs under",
+  "invite_password_label": "Password (optional)",
+  "invite_expires_label": "Expires at (optional)",
+  "invite_clear_expires": "Remove expiration",
+  "invite_note_label": "Note (admin only)",
+  "invite_note_placeholder": "Internal comment",
+  "invite_reset_used": "Reset used counter to 0",
+  "invite_created": "Invite link created (URL copied)",
+  "invite_updated": "Invite link updated",
+  "invite_deleted": "Invite link deleted",
+  "invite_delete_confirm": "Delete this invite link?",
+  "invite_public_title": "Invite",
+  "invite_public_subtitle": "Get a VPN config via invite link",
+  "invite_protected_desc": "This invite link is password protected.",
+  "invite_get_config_hint": "Each click creates one new config and counts as a use",
+  "invite_uses_left": "Remaining uses: {}",
+  "invite_uses_left_unlimited": "Created so far: {} (unlimited)",
+  "invite_not_found": "404 Not Found",
+  "invite_not_found_desc": "Invite link is invalid or was deleted.",
+  "wrong_invite_password": "Wrong password",
   "public_link_label": "Public link",
   "disabled": "Disabled",
   "out_of": "Of",