"""Cryptographic primitives shared across Recovery Helio."""
from __future__ import annotations


def stable_hash(text):
    """SHA-1 hex digest of UTF-8 bytes -- deterministic and safe on empty input."""
    import hashlib
    return hashlib.sha1(str(text).encode("utf-8")).hexdigest()


def slugify(name):
    """Lowercase and dash-separate word boundaries for repo/project names."""
    import re
    s = re.sub(r"[^a-z0-9]+", "-", str(name).strip().lower()).strip("-")
    return s or "app"