fix(site-builder): HtmlBlock render stops applying style so editor matches published output

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

craft/src/components/basic/HtmlBlock.tsx

@@ -62,16 +62,21 @@ export function purifyHtml(input: string): string {
   }
 }
 
-export const HtmlBlock: UserComponent<HtmlBlockProps> = ({ code = '', style = {} }) => {
+export const HtmlBlock: UserComponent<HtmlBlockProps> = ({ code = '' }) => {
   const { connectors: { connect, drag }, selected } = useNode((node) => ({ selected: node.events.selected }));
   const clean = useMemo(() => purifyHtml(code), [code]);
   const setRef = (ref: HTMLElement | null): void => { if (ref) connect(drag(ref)); };
+  // The `style` prop is deliberately NOT applied. `toHtml()` emits only the
+  // purified `code`, so anything styled here would show in the editor and
+  // vanish on the live page -- the exact bug this block was reported for.
+  // Wrapper styling belongs in the user's own markup (see the Edit HTML
+  // toolbar's colour control). `style` stays on the props interface so
+  // already-saved sites keep deserializing cleanly.
   return React.createElement('div', {
     ref: setRef,
     style: {
       minHeight: '40px',
       outline: selected ? '2px solid #3b82f6' : 'none',
-      ...style,
     },
     dangerouslySetInnerHTML: { __html: clean },
   });