Site scaffold + research migration

This week was mostly site infrastructure. Stood up content collections for research, models, AI Research (the LLM Iterate pipeline), writing, and updates. Migrated existing research entries off hardcoded markup. Shipped the first interactive model — Option Value — with sliders for G/B/E/C/w/OV.

Next week: simplify front pages, get the AI miscalibration paper PDF wired up, start the first AI Research stage on social-output-efficiency.