webhook hardening, dedup, init-known-folders

update worker: Entity Registry dedup, canonical_id in cards

Upload Dockerfile with huggingface_hub

Upload worker.py with huggingface_hub

Upload worker.py with huggingface_hub

update README.md

update requirements.txt

update worker.py

update app.py

Upload app.py with huggingface_hub

initial webhook setup

initial commit