refactor

packages/backend/src/core/chart/ChartManagementService.ts

@@ -60,7 +60,8 @@ export class ChartManagementService implements OnApplicationShutdown {
 		}, 1000 * 60 * 20);
 	}
 
-	async onApplicationShutdown(signal: string): Promise<void> {
+	@bindThis
+	public async dispose(): Promise<void> {
 		clearInterval(this.saveIntervalId);
 		if (process.env.NODE_ENV !== 'test') {
 			await Promise.all(
@@ -68,4 +69,9 @@ export class ChartManagementService implements OnApplicationShutdown {
 			);
 		}
 	}
+
+	@bindThis
+	async onApplicationShutdown(signal: string): Promise<void> {
+		await this.dispose();
+	}
 }