Add loading overlay with progress + Korean status messages

v3: Rename darwin-atlas to Model Galaxy + 48 trending originals (DeepSeek-V4, MiMo-V2.5, Hy3, GLM-5.1, Hermes-4.3, Kimi-K2, gpt-oss, Nemotron-3, etc.) + white premium UI

DARWIN Atlas — fork of Eliahu/Model-Atlas with 111 Darwin family + 33 anchors + 108 edges injected