The editor preview fails to typecheck where it restores community rune styles

Found while implementing v0.41.3 (BUG-034 touches the same file). It is on main before that change, and CI does not typecheck the editor app, so nothing catches it.

packages/editor/app/src/lib/preview/block-renderer.ts:54 copies communityStyles back onto the rune configs. communityStyles is typed Record<string, unknown>, so each styles value is unknown. RuneConfig.styles expects Record<string, string | { prop: string; template?: string; transform?: NamedTransform }>.

main View source

main current confirmed

changeset-release/main confirmed claude/milestone-v0-41-3-1mzttp confirmed main confirmed

Steps to Reproduce

npm run build
cd packages/editor && npx tsc --noEmit -p app

Expected

No errors.

Actual

app/src/lib/preview/block-renderer.ts(54,37): error TS2322: Type 'Record<string, unknown>' is not
assignable to type 'Record<string, string | { prop: string; template?: string | undefined;
transform?: NamedTransform | undefined; }>'.

Fix sketch

Type communityStyles as Record<string, RuneConfig['styles']> where it is declared, rather than casting at the assignment. Consider adding the editor app to a CI typecheck so the next one is caught.

Environment

main at v0.41.2 packages