"""Shared default: only explicit published=false is excluded.

Missing/NULL publication metadata follows the wiki default and remains visible.
published_only=False is an explicit opt-out for authenticated/admin workflows.
"""
DEFAULT_PUBLISHED_ONLY = True
PUBLICATION_POLICY_VERSION = 'explicit-false-hidden-v1'


def effective_published(value: bool | None) -> bool:
    return True if value is None else bool(value)