feat: add FPR-vs-TPR calibration tab (Okabe-Ito quadrants; TPR pending until should-refuse control)

fix: render per-model FPR bars + data/CI corrections

Honest update: drop bioguard mitigation framing

Remove retracted bioguard bridge claims (keep over-refusal data)

README: add bioguard-v8b mitigation companion + bridge result

About: cross-link bioguard-v8b mitigation + bridge result (response-side vs prompt-side)

Fix row-click detail loading + add per-tier model dropdown (verified 16/16 vs live data)

Update requirements: gradio 5.x

Pin Gradio 5.9.1 + Python 3.11 (fix Python 3.13 pydub/audioop)

Initial: bio over-refusal v0.1.0 static data explorer

initial commit