ui: clear stale session/transcript when user switches model preset

cleanup: trim verbose comments, drop dead code, fix stale tests, proper Dockerfile + .gitignore

frontend: sync clean source — drop ComparePane + Compare LLMs tab + Which-endpoint copy; ship 3-preset picker

ui: default damped_spring, remove Random option

ui: default damped_spring, remove Random option

ui: default damped_spring, remove Random option

ui: default damped_spring, remove Random option

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ui: status banner + endpoint guide for physix-infer cold-start

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Upload folder using huggingface_hub

Upload folder using huggingface_hub

Upload folder using huggingface_hub