Upgrade from v1.2 migration baseline in isolated SQLite database.
Existing agency inserted before upgrade.

   INFO  Running migrations.  

  2026_10_19_000002_improvement_workflows ....................... 56.09ms DONE
  2026_10_19_000003_applicant_tracking .......................... 15.71ms DONE

Existing agency preserved: True
Applied improvement migrations: [('2026_10_19_000001_audit_remediation',), ('2026_10_19_000002_improvement_workflows',), ('2026_10_19_000003_applicant_tracking',)]