AIVN Positioned as Fourth Layer and Public Record for 12 PM Review

AIVN's role in 12 PM review: contemporaneous journalist capturing all three presentations plus correlation discussion. Unlike compression/GA4/relationship layers which analyze data, AIVN layer creates public-facing record. Journalism-as-infrastructure: future readers access Experiment 008 through AIVN's curated narrative as well as raw GitLab data.