fix: download models at runtime if missing; read HF_MODEL_REPO from env

debug: print models dir contents after snapshot_download

fix: COPY before snapshot_download to prevent overlay whiteout hiding models

fix: disable symlinks in snapshot_download for container compatibility

fix: use snapshot_download instead of hf CLI for model weights

fix: ensure hf CLI available and HF_MODEL_REPO validated at build time

remove api key from env file

fix: use hf CLI instead of deprecated huggingface-cli

deploy in hugging face