Follow-up to #284: rows of inline-aligned images were pinned left while
a single image defaults to centered — inconsistent. A row has no DOM
wrapper (each image is an independent block node), so its placement is
controlled by the text-align of the nearest block ancestor.
- media.css: enable text-align:center only on containers that actually
hold a direct inline-image child (:has), and reset every other child
back to text-align:start so ordinary text is unaffected; explicit
per-block toolbar alignment (inline style) still wins; browsers
without :has() keep the previous start-pinned rows
- image.ts: comment in the inline branch now points to the media.css
rule (cross-package discoverability), no code change
Reviewed: math/caption/table-header/footnote text-align rules audited;
React node views are wrapped in .react-renderer, so .mathBlock is not a
direct child and keeps its own centering (verified in happy-dom).
claude_code