refactor(builder): use shared escaper everywhere, drop 26 local copies

Replace divergent, buggy local esc/escapeHtml helpers across 26 files with
imports from src/utils/escape (escapeHtml/escapeAttr). Attribute call sites use
escapeAttr, text-content sites use escapeHtml. Several toHtml outputs now
correctly escape & where old local escapers omitted it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

craft/src/components/layout/Section.tsx

@@ -3,6 +3,7 @@ import { useNode, Element, UserComponent } from '@craftjs/core';
 import { cssPropsToString } from '../../utils/style-helpers';
 import { Container } from './Container';
 import { AnchorIdField } from '../../ui/AnchorIdField';
+import { escapeAttr } from '../../utils/escape';
 
 /* ---------- Shape Divider SVG Paths ---------- */
 
@@ -383,7 +384,6 @@ function buildDividerHtml(
 }
 
 (Section as any).toHtml = (props: SectionProps, childrenHtml: string) => {
-  const esc = (s: any) => String(s ?? "").replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
   const hasTopDivider = props.topDivider && props.topDivider !== 'none';
   const hasBottomDivider = props.bottomDivider && props.bottomDivider !== 'none';
 
@@ -401,7 +401,7 @@ function buildDividerHtml(
 
   const topHtml = buildDividerHtml(props.topDivider, props.topDividerColor, props.topDividerHeight, 'top');
   const bottomHtml = buildDividerHtml(props.bottomDivider, props.bottomDividerColor, props.bottomDividerHeight, 'bottom');
-  const idAttr = props.anchorId ? ` id="${esc(props.anchorId)}"` : '';
+  const idAttr = props.anchorId ? ` id="${escapeAttr(props.anchorId)}"` : '';
 
   return {
     html: `<section${idAttr}${outerStyle ? ` style="${outerStyle}"` : ''}>${topHtml}<div${innerStyle ? ` style="${innerStyle}"` : ''}>${childrenHtml}</div>${bottomHtml}</section>`,