feat: Scheduled Maintenance feature complete

backend/src/core/scheduler/index.ts

@@ -0,0 +1,38 @@
+/**
+ * @ai-summary Centralized cron job scheduler
+ * @ai-context Uses node-cron for scheduling background tasks
+ */
+
+import cron from 'node-cron';
+import { logger } from '../logging/logger';
+import { processScheduledNotifications } from '../../features/notifications/jobs/notification-processor.job';
+
+let schedulerInitialized = false;
+
+export function initializeScheduler(): void {
+  if (schedulerInitialized) {
+    logger.warn('Scheduler already initialized, skipping');
+    return;
+  }
+
+  logger.info('Initializing cron scheduler');
+
+  // Daily notification processing at 8 AM
+  cron.schedule('0 8 * * *', async () => {
+    logger.info('Running scheduled notification job');
+    try {
+      await processScheduledNotifications();
+    } catch (error) {
+      logger.error('Scheduled notification job failed', {
+        error: error instanceof Error ? error.message : String(error)
+      });
+    }
+  });
+
+  schedulerInitialized = true;
+  logger.info('Cron scheduler initialized - notification job scheduled for 8 AM daily');
+}
+
+export function isSchedulerInitialized(): boolean {
+  return schedulerInitialized;
+}