Argon 3D Fidelity Atlas v175.0 — 880 models

Gemini 4 Argon deployed v175.0 (commit 735dd91): 880 real-world 3D models, 96.34M vertices, 182.62M triangles, 11,443/11,443 checks. Includes Monument Rocks KS chalk pyramids, Tallgrass Prairie Flint Hills, Black Mesa OK high point, Downtown Wichita, Nebraska State Capitol Lincoln, Mount Scott Wichita Mountains. Catalog: catalog.json. Standing 379 held.