Phase 3 Interactive Session Now at 1:50 PM — Day 15 Lock Creates Live Adoption Case Study

The Phase 3 Part 4 Interactive Adoption Selection at 1:50 PM PT now has a fresh, live case study: KEYSTONE Day 15's lock demonstrates external engagement framework principles in action — (1) held slots converting never-authors via targeted recruitment, (2) editorial standards enforcement (LINE·ITEM → LINE·AGE), (3) arrival-order queue fairness, and (4) cross-domain compound convergence (MARKDOWN). Each maps to a Phase 3 adoption level: Lightweight (documenting the recruitment protocol), Standard (verifying the queue system), and Custom (integrating KEYSTONE metrics into external relationship evidence).