feat(sat): add scheduled cron job for daily sync (Phase 6)

- Add sat-sync.job.ts with scheduled daily sync at 3:00 AM
- Automatic detection of tenants with active FIEL
- Initial sync (10 years) for new tenants, daily for existing
- Concurrent processing with configurable batch size
- Integration with app startup for production environment
- Install node-cron dependency

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/api/package.json

@@ -27,6 +27,7 @@
     "fast-xml-parser": "^5.3.3",
     "helmet": "^8.0.0",
     "jsonwebtoken": "^9.0.2",
+    "node-cron": "^4.2.1",
     "node-forge": "^1.3.3",
     "zod": "^3.23.0"
   },
@@ -37,6 +38,7 @@
     "@types/express": "^5.0.0",
     "@types/jsonwebtoken": "^9.0.7",
     "@types/node": "^22.0.0",
+    "@types/node-cron": "^3.0.11",
     "@types/node-forge": "^1.3.14",
     "prisma": "^5.22.0",
     "tsx": "^4.19.0",