devlog 4 - UI refactor
streamlit was replaced with FastAPI + a frontend and i think it looks much better than previously now.

issues + features:

• hugging face’s api (i.e. HfApi.list_models() was not filtered correctly during search)
• direct model import based on local dir is now possible
• openrouter judge was outdated and replaced, now user-configurable
• install now possible in a oneliner pip install -r requirements.txt && waifmark
• if a benchmark was cancelled, previously a bg server process vLLM workers would leak; instead process groups (start_new_session=True) and os.killpg gets rid of all processes when a session is ended.
• streamlit ran CORS and XSRF disabled; rebound to localhost