fix: explicitly disable HF_HUB_OFFLINE for model download

fix: pass HF_TOKEN to huggingface hub

fix: PKL_DIR points to /tmp/models where files download

fix: correct paths /app/data/ for git files, /tmp/ for downloads

fix: module-level startup + gunicorn 300s timeout

enable ESM2 auto-download from facebook/esm2_t36_3B_UR50D

fix global declaration error

fix syntax error in index route

add model auto-download from FunGO-models repo

fix: remove invalid global declaration

fix: graceful start without model files

FunGO v2.0 backend