=== ROUTER STEP FACTS CONTRACT VALIDATION ===
step=STEP_048C_VM101_0420_SELECTION_LOGIC_TRACE
decision=PASS
all_ok=True
structure_ok=True
success_ok=True
expected_absence_ok=True
blockers_ok=True
success_checks_count=2
expected_absence_count=0

warnings:
  - Read-only trace only.
  - No cron, services, VPN configs, routes, or interfaces are changed.
  - Conclusion is based on static script/cron classification and should guide the next design step.