import hashlib
import json


def hash_any_object(var) -> str:
    """Deterministic sha256 over a JSON-encodable value. Replaces the older
    pickle-based hash: pickle is nondeterministic across Python versions /
    dict-ordering tweaks and pulls more attack surface than we need for a
    plain change-detection fingerprint."""
    encoded = json.dumps(var, sort_keys=True, ensure_ascii=False, default=str)
    return hashlib.sha256(encoded.encode("utf-8")).hexdigest()