Meeting HSF1 in Antigravity 2.0 — the first chapter shipped

The first chapter of heat-protein-lab is live. It introduces HSF1, the protein your cells use as a thermometer — rendered from a real PDB structure, citations pulled live through Google DeepMind's Science Skills bundle, tissue expression from the Human Protein Atlas across 49 tissues. This post is Phase 1, with three things worth a post on their own: a scientific correction the verification step caught (5D5W vs 5D5U), the build pattern (plain HTML/CSS, no bundler, gzipped mmCIF decoded in-page), and what the agy CLI stall taught me about prompts.