feat(actions): implement action system for UPS state management with shutdown, webhook, and script actions

ts/migrations/migration-runner.ts

@@ -1,6 +1,7 @@
 import { BaseMigration } from './base-migration.ts';
 import { MigrationV1ToV2 } from './migration-v1-to-v2.ts';
 import { MigrationV3ToV4 } from './migration-v3-to-v4.ts';
+import { MigrationV4_0ToV4_1 } from './migration-v4.0-to-v4.1.ts';
 import { logger } from '../logger.ts';
 
 /**
@@ -17,7 +18,8 @@ export class MigrationRunner {
     this.migrations = [
       new MigrationV1ToV2(),
       new MigrationV3ToV4(),
-      // Add future migrations here (v4→v5, v5→v6, etc.)
+      new MigrationV4_0ToV4_1(),
+      // Add future migrations here (v4.2, v4.3, etc.)
     ];
 
     // Sort by order to ensure they run in sequence