Style no longer scores median words per post. The factor is removed and the remaining four renormalize to vocabulary, rarity, readability, and structure. Median words per post stays a diagnostic; Volume already implies mean post length through total words and post count.
The score version moves to 20, with the history entry, emitted tree, document fixture, and site snapshot updated together. Longread's embedded scoring now drops the same factor, and its recency is synced to the canonical 45-day grace so the parity fixture matches.
npx vitest run scripts/panoptiblog passes 171 tests, the longread suite and clippy pass, and prek passes on the changed files.