fix(backups): preserve existing volume backup timeouts

Change only the default timeout for new volume backups without modifying existing schedules.

database/migrations/2026_08_15_000000_increase_default_volume_backup_timeout.php

@@ -2,17 +2,12 @@
 
 use Illuminate\Database\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Schema;
 
 return new class extends Migration
 {
     public function up(): void
     {
-        DB::table('scheduled_volume_backups')
-            ->where('timeout', 3600)
-            ->update(['timeout' => 36000]);
-
         Schema::table('scheduled_volume_backups', function (Blueprint $table) {
             $table->unsignedInteger('timeout')->default(36000)->change();
         });

tests/Feature/VolumeBackupTest.php

@@ -61,7 +61,7 @@ it('allows large volume backups to run for ten hours by default', function () {
         ->and(config('queue.connections.redis.retry_after'))->toBeGreaterThan(config('horizon.defaults.s6.timeout'));
 });
 
-it('upgrades existing default volume backup timeouts without changing custom timeouts', function () {
+it('changes the default volume backup timeout without changing existing timeouts', function () {
     $team = Team::factory()->create();
     [$application, $defaultVolume] = createVolumeBackupApplication($team);
     $customVolume = LocalPersistentVolume::create([
@@ -84,7 +84,7 @@ it('upgrades existing default volume backup timeouts without changing custom tim
     $migration = require database_path('migrations/2026_08_15_000000_increase_default_volume_backup_timeout.php');
     $migration->up();
 
-    expect($defaultBackup->fresh()->timeout)->toBe(36000)
+    expect($defaultBackup->fresh()->timeout)->toBe(3600)
         ->and($customBackup->fresh()->timeout)->toBe(7200);
 });