Fix HF exec entrypoint: generate entrypoint.sh in Docker; body in entrypoint_body.sh

Fix entrypoint exec format error: bash CMD, CRLF strip after COPY

Fix vLLM/PyTorch getpwuid crash: USER, TORCHINDUCTOR_CACHE_DIR on HF Spaces

Keyless search: DuckDuckGo + direct HTTP browse; optional Serper/Jina

fix: enforce LF for entrypoint; comment for Hub rebuild

fix: Unix LF for entrypoint.sh + Dockerfile sed CRLF guard

Initial: GenSearcher workflow + FireRed /generate adapter + Gradio