feat: DB migration for Backup retention

- rename number_of_backups_locally to database_backup_retention_amount_locally
- add backup retention days to local stored backups
- add s3 retention fields

database/migrations/2025_01_13_130238_add_backup_retention_fields_to_scheduled_database_backups_table.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up()
+    {
+        Schema::table('scheduled_database_backups', function (Blueprint $table) {
+            $table->renameColumn('number_of_backups_locally', 'database_backup_retention_amount_locally');
+            $table->integer('database_backup_retention_amount_locally')->default(0)->nullable(false)->change();
+            $table->integer('database_backup_retention_days_locally')->default(0)->nullable(false);
+
+            $table->integer('database_backup_retention_amount_s3')->default(0)->nullable(false);
+            $table->integer('database_backup_retention_days_s3')->default(0)->nullable(false);
+            $table->integer('database_backup_retention_max_storage_s3')->default(0)->nullable(false);
+        });
+    }
+
+    public function down()
+    {
+        Schema::table('scheduled_database_backups', function (Blueprint $table) {
+            $table->renameColumn('database_backup_retention_amount_locally', 'number_of_backups_locally')->nullable(true)->change();
+            $table->dropColumn([
+                'database_backup_retention_days_locally',
+                'database_backup_retention_amount_s3',
+                'database_backup_retention_days_s3',
+                'database_backup_retention_max_storage_s3',
+            ]);
+        });
+    }
+};