feat(backups): alert when scheduled backups are missing (#11433)

database/migrations/2026_08_20_150000_add_missing_backup_notification_fields_to_scheduled_database_backups_table.php

@@ -0,0 +1,28 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('scheduled_database_backups', function (Blueprint $table) {
+            $table->unsignedInteger('missing_backup_notification_days')->default(0);
+            $table->timestamp('missing_backup_notification_sent_at')->nullable();
+            $table->timestamp('last_execution_at')->nullable();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('scheduled_database_backups', function (Blueprint $table) {
+            $table->dropColumn([
+                'missing_backup_notification_days',
+                'missing_backup_notification_sent_at',
+                'last_execution_at',
+            ]);
+        });
+    }
+};