fix(profile): remote destinations tab broken — lazy-init Bootstrap modal

The remote destinations table stayed stuck at "Loading…" and the "Add
Destination" button did nothing. Root cause: the profile-edit DOMContentLoaded
handler instantiated the Bootstrap modal eagerly at the top
(`bootstrap.Modal.getOrCreateInstance`). In Joomla 6, Bootstrap loads as a
deferred ES module, so `bootstrap` is undefined at DOMContentLoaded — the
reference threw a ReferenceError that aborted the entire handler, so
loadRemotes() never ran and the Add button was never bound. (The purge and
stepped-backup modals worked because they resolve the modal lazily inside
click handlers.)

- Resolve the modal lazily via getModal() at click-time (matches the working modals)
- Explicitly load the bootstrap.modal web asset so window.bootstrap.Modal is registered

Claude-Session: https://claude.ai/code/session_01WbGBN9VyRK61zczYWcCQ2i

source/packages/com_mokosuitebackup/tmpl/profile/edit.php

@@ -17,6 +17,7 @@ use Joomla\CMS\Session\Session;
 
 HTMLHelper::_('behavior.formvalidator');
 HTMLHelper::_('behavior.keepalive');
+HTMLHelper::_('bootstrap.modal');
 
 $profileId = (int) $this->item->id;
 $token     = Session::getFormToken();
@@ -274,7 +275,11 @@ document.addEventListener('DOMContentLoaded', function() {
 	const emptyMsg  = document.getElementById('remoteDestEmpty');
 	const loadingTr = document.getElementById('remoteDestLoading');
 	const modalEl   = document.getElementById('remoteModal');
-	const modal     = bootstrap.Modal.getOrCreateInstance(modalEl);
+	// Lazy: resolve the Bootstrap modal at click-time. Bootstrap loads as a
+	// deferred ES module, so `bootstrap` is not defined yet at DOMContentLoaded;
+	// referencing it here would throw and abort the whole handler (leaving the
+	// table stuck at "Loading…" and the Add button unbound).
+	const getModal  = () => bootstrap.Modal.getOrCreateInstance(modalEl);
 
 	// Type badge colours
 	const typeBadge = {sftp: 'bg-primary', s3: 'bg-warning text-dark', google_drive: 'bg-success'};
@@ -507,7 +512,7 @@ document.addEventListener('DOMContentLoaded', function() {
 		}
 
 		updateTypeFields();
-		modal.show();
+		getModal().show();
 	}
 
 	// ---- Type selector toggles field visibility ----
@@ -587,7 +592,7 @@ document.addEventListener('DOMContentLoaded', function() {
 				return;
 			}
 
-			modal.hide();
+			getModal().hide();
 			loadRemotes();
 		})
 		.catch(() => {