v1.2.0: track camera tag modifications — amber alert, modified ledger event, daily-stats column Also in this release: UTC ISO-8601 timestamps throughout, OSM node-churn reconciliation (re-mapped node IDs no longer alert), timer jitter via RandomizedDelaySec, and README screenshots + demo gif. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>