fix(quick-260721-fy8): add mimecast-sync and qbo dispatch branches to scheduler

- Extend ScheduleConfig.sync_type union with 'mimecast-sync'
- Add mimecast-sync branch calling runMimecastIncrementalSync() behind
  isMimecastConfigured(), mirroring the engagement/zoom configured-gate pattern
- Add qbo branch calling getQboSyncService().incrementalSync('scheduled')
  behind an integration_settings disabled check, mirroring the pax8-daily
  disable-check pattern
- Both branches previously fell through to the generic Autotask fullSync()
  catch-all, which also contended for the SyncService singleton mutex

lib/services/sync-scheduler.ts

@@ -22,7 +22,7 @@ export interface ScheduleConfig {
   name: string;
   description: string;
   cron_expression: string;
-  sync_type: 'incremental' | 'full' | 'veeam-incremental' | 'veeam-full' | 'veeam-rpo-check' | 'contract-services' | 'engagement-daily' | 'zoom-daily' | 'morning-summary' | 'ticket-digest-daily' | 'ticket-digest-weekly' | 'ticket-digest-monthly' | 'device-link-reconcile' | 'integration-health' | 'qbo' | 'appgate-sessions' | 'appgate-daily' | 'tickets-reconcile' | 'pax8-daily' | 'phishing-sweep';
+  sync_type: 'incremental' | 'full' | 'veeam-incremental' | 'veeam-full' | 'veeam-rpo-check' | 'contract-services' | 'engagement-daily' | 'zoom-daily' | 'morning-summary' | 'ticket-digest-daily' | 'ticket-digest-weekly' | 'ticket-digest-monthly' | 'device-link-reconcile' | 'integration-health' | 'qbo' | 'mimecast-sync' | 'appgate-sessions' | 'appgate-daily' | 'tickets-reconcile' | 'pax8-daily' | 'phishing-sweep';
   years_back?: number;
   is_enabled: boolean;
   last_run?: Date;
@@ -491,6 +491,28 @@ class SyncScheduler {
             await getPax8SyncService().fullSync('scheduled');
           }
         }
+      } else if (config.sync_type === 'mimecast-sync') {
+        const { isMimecastConfigured } = await import('@/lib/services/mimecast-client');
+        if (!isMimecastConfigured()) {
+          console.log('[SCHEDULER] Skipping mimecast-sync — Mimecast not configured');
+        } else {
+          const { runMimecastIncrementalSync } = await import('@/lib/services/mimecast-sync-service');
+          const result = await runMimecastIncrementalSync();
+          console.log(
+            `[SCHEDULER] mimecast-sync: messagesUpserted=${result.messagesUpserted} threatsUpserted=${result.threatsUpserted} bodiesFetched=${result.bodiesFetched} purgedMessages=${result.purgedMessages} errors=${result.errors.length} durationMs=${result.durationMs}`
+          );
+        }
+      } else if (config.sync_type === 'qbo') {
+        const disabledRes = await postgresClient.query<{ disabled: boolean }>(
+          `SELECT disabled FROM integration_settings WHERE key = 'qbo'`
+        );
+        const isDisabled = disabledRes.rows[0]?.disabled === true;
+        if (isDisabled) {
+          console.log('[SCHEDULER] Skipping qbo sync — QBO disabled via /admin/integrations');
+        } else {
+          const { getQboSyncService } = await import('@/lib/services/qbo-sync-service');
+          await getQboSyncService().incrementalSync('scheduled');
+        }
       } else if (config.sync_type === 'incremental') {
         await this.syncService.incrementalSync('scheduled');
       } else {