feat(core): Set up backend modules (#17448)

scripts/backend-module/my-feature.service.template

@@ -0,0 +1,43 @@
+import { Logger } from '@n8n/backend-common';
+import { Service } from '@n8n/di';
+
+import { MyFeatureConfig } from './my-feature.config';
+import { MyFeatureRepository } from './my-feature.repository';
+
+@Service()
+export class MyFeatureService {
+	private intervalId?: NodeJS.Timeout;
+
+	constructor(
+		private readonly myFeatureRepository: MyFeatureRepository,
+		private readonly logger: Logger,
+		private readonly config: MyFeatureConfig,
+	) {
+		this.logger = this.logger.scoped('my-feature' /* Add scope to logging.config.ts */);
+	}
+
+	start() {
+		this.logger.debug('Starting feature work...');
+
+		this.intervalId = setInterval(
+			() => {
+				this.logger.debug('Running scheduled task...');
+			},
+			this.config.taskInterval * 60 * 1000,
+		);
+	}
+
+	async shutdown() {
+		this.logger.debug('Shutting down...');
+
+		if (this.intervalId) {
+			clearInterval(this.intervalId);
+		}
+
+		await Promise.resolve();
+	}
+
+	async getSummary() {
+		return await this.myFeatureRepository.getSummary();
+	}
+}