Enhance DNS discovery, validation & transfers

Add comprehensive DNS management and input validation, plus safer transfer and logging behavior.

- Add CronHelper utilities for cron scripts and unify logging/formatting.
- Improve InputValidator: sanitizeDomainInput and validateRootDomain (handles multi-level TLDs) and use throughout domain import/create flows to reject subdomains.
- DomainController: refactor DNS refresh to support quick/deep discovery (background deep scans), add endpoints to discover, add/delete/bulk-delete DNS records, import BIND zone files, enrich IP metadata via enrichIpDetails, and strengthen bulk import/reporting messages.
- DnsRecord model: add source column handling (discovered/manual/imported), avoid auto-deleting manual/imported records, and add helpers for deleting, bulk deleting, manual adding and importing zone records.
- Tag, NotificationGroup and Domain transfer logic: unlink groups when ownership changes, remove tags that belong to other users, add audit logging via Logger and improved bulk transfer reporting. TagController/View: show transferable users for admins and skip global tags on transfer.
- Notification channels (Discord, Mattermost, etc.) and EmailHelper: allow explicit subjects and improve payload fields based on notification type.
- Add new migration 029_add_dns_record_source.sql and wire it into the installer; update migrations detection.
- Add new views/partials for confirm/import/transfer modals, update various domain/group/tag templates, and update cron scripts and routes for discovery.

These changes preserve manual/imported DNS records, improve root-domain validation, enable background deep discovery, and add better logging/audit trails for transfers and imports.

app/Views/domains/tabs/ssl.twig

@@ -319,7 +319,7 @@
                                 Check Now
                             </button>
                         </form>
-                        <form method="POST" action="/domains/{{ domain.id }}/ssl/{{ certificate.id }}/delete" class="inline" onsubmit="return confirm('Remove SSL monitoring for {{ certificate.display_target }}?');">
+                        <form method="POST" action="/domains/{{ domain.id }}/ssl/{{ certificate.id }}/delete" class="inline" onsubmit="return confirmSubmit(event, 'Remove SSL monitoring for {{ certificate.display_target }}?')">
                             {{ csrf_field()|raw }}
                             <button type="submit" class="inline-flex items-center px-2 py-1 bg-red-600 text-white text-xs rounded hover:bg-red-700 transition-colors font-medium">
                                 <i class="fas fa-trash mr-1" style="font-size: 9px;"></i>
@@ -433,14 +433,15 @@ function clearSSLSelection() {
     updateSSLBulkActions();
 }
 
-function submitBulkSslAction(action) {
+async function submitBulkSslAction(action) {
     const selectedIds = getSelectedSSLIds();
     if (selectedIds.length === 0) {
         return;
     }
 
-    if (action === 'delete' && !window.confirm(`Remove SSL monitoring for ${selectedIds.length} endpoint(s)?`)) {
-        return;
+    if (action === 'delete') {
+        var ok = await confirmAction({ message: 'Remove SSL monitoring for ' + selectedIds.length + ' endpoint(s)?' });
+        if (!ok) return;
     }
 
     const input = document.getElementById(`ssl-bulk-${action}-ids`);