Content-focused sprint: FRIEND packs (Kael Davan, Sera Venn), NPC authoring style guide, voice patterns, PC-as-NPC content, UI microcopy, and FactId pre-commit validation. Briefings for copy (6 tickets), client (2), CI (1), plus joint integration. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>