=== ROUTER STEP FACTS CONTRACT VALIDATION === step=STEP_048F_GENERIC_SLOT_HEALTH_MONITOR_OBSERVE decision=PASS all_ok=True structure_ok=True success_ok=True expected_absence_ok=True blockers_ok=True success_checks_count=28 expected_absence_count=0 warnings: - Observe-only step. - No recovery, no tunnel replacement, no route changes, no VM100/VM121 changes. - Confirms generic health monitor remains stable over multiple cycles.