* fix(markdown): use editor-side tokens in the preview
The preview paints on var(--bg-editor) but took its text colors from
the UI tokens (--fg, --fg-strong, --fg-secondary), so with a light UI
theme plus a dark editor scheme (e.g. an imported dark .icls) it
rendered black-on-black. The code editor was unaffected because it
uses --fg-editor.
The preview now uses editor-side tokens: text var(--fg-editor),
headings var(--syn-markup-heading), code/pre/th background
var(--bg-editor-inline), blockquote var(--fg-editor) at 80%.
* chore: oxfmt src/features/run/types.ts (fixes format:check broken on main by 002401e8)
* chore: regenerate bindings after rebasing onto main