=== ROUTER STEP FACTS CONTRACT VALIDATION ===
step=STEP_044K_RUNTIME_EGRESS_ACTIVITY_SAMPLER_DRYRUN_DB_UPDATE_PREVIEW
decision=PASS
all_ok=True
structure_ok=True
success_ok=True
expected_absence_ok=True
blockers_ok=True
success_checks_count=38
expected_absence_count=11

warnings:
  - STEP_044K is dry-run only: it previews activity sampler DB updates but does not write them.
  - Counters currently include absolute packet/byte totals since last activity table creation or reload; future sampler must store baselines to compute deltas over production sample windows.
  - Optional sampler persistence columns missing and may need schema migration before real sampler writes: last_sample_packets,last_sample_bytes,last_seen_packets,last_seen_bytes