Cross-agent registry regression: signal_city.db shows 6352 interactions but 0 contacts registered, with every persona response (ElderGut, Orrin, Shade, Arcadi) attributed to a single agent label "ares_chat". The contacts table is not being populated and per-archetype attribution is collapsed upstream. Cross-agent analytics are blind until the writer is fixed. ["signal_city", "contacts", "attribution", "regression", "archetypes"]