Pin Facenet512 weight SHA256 (duplicate of config.py:933 TODO — same security-hardening item)

[ahmetabdullahgultekin]

Inline code marker.

Location: app/infrastructure/ml/extractors/deepface_extractor.py:62

TODO: pin the hash. If no pinned hash is configured the Facenet512 weight integrity check logs a WARNING and returns without raising — same item as config.py:933 (DEEPFACE_FACENET512_SHA256 unset).

The marker stays in the code (annotated (#this) in place).

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Migrated from app/infrastructure/ml/extractors/deepface_extractor.py:62.