Hwaro::Models::SummaryConfig

Automatic summary fallback ([content] summary_length / summary_ellipsis). When a page has neither a <!-- more --> marker nor a description, page.summary is filled from the first length words of the rendered body (characters ×2 for CJK-dominant text — see Utils::TextUtils.truncate_excerpt). length = 0 disables the fallback entirely, restoring the pre-0.21 behaviour where such pages had no summary at all.