implement logic, jobs and add DB migrate

database/migrations/2024_08_05_142659_add_new_version_available_to_instance_settings_table.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('instance_settings', function (Blueprint $table) {
+            $table->string('update_check_frequency')->nullable();
+            $table->string('auto_update_frequency')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('instance_settings', function (Blueprint $table) {
+            $table->dropColumn('update_check_frequency');
+            $table->dropColumn('auto_update_frequency');
+        });
+    }
+};