feat(builder): surface hidden section/pricing/social props + box-model rollout

SectionTypePanel (Accordion/Tabs/Testimonials/Countdown/NumberCounter/
CTASection/CallToAction/FeaturesGrid), PricingStylePanel, and
SocialStylePanel all gain a Spacing & Border section (margin/padding
per-side, border, box-shadow, opacity), an Animation section, and a
Visibility section, wired to the shared SpacingControl/BorderControl/
AnimationControl/VisibilityControl.

PricingTable's per-card colors (cardBg/textColor/subColor/featColor/
checkColor/btnBg/btnColor) were previously hard-coded literals computed
from featuredBg inside toHtml -- promoted to real optional props (each
falling back to the exact prior literal when unset) and exposed via
ColorPickerField in PricingStylePanel.

SocialStylePanel now exposes SocialLinks' iconShape/gap (already-built
props with no control), plus Icon's bgColor/bgShape/bgSize/link and
StarRating's filledColor/emptyColor, which the panel's generic
iconBgColor/starColor checks never matched since those aren't Icon's or
StarRating's real prop names.

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

craft/src/components/sections/Accordion.toHtml.test.ts

@@ -0,0 +1,38 @@
+import { describe, test, expect } from 'vitest';
+import { Accordion } from './Accordion';
+
+const toHtml = (Accordion as any).toHtml;
+
+const items = [
+  { title: 'Q1', content: 'A1', isOpen: true },
+  { title: 'Q2', content: 'A2', isOpen: false },
+];
+
+describe('Accordion.toHtml basic export', () => {
+  test('renders a <details> per item with the open attribute honored', () => {
+    const { html } = toHtml({ items }, '');
+    const detailsBlocks = html.match(/<details[^>]*>/g) || [];
+    expect(detailsBlocks.length).toBe(2);
+    expect(detailsBlocks[0]).toContain(' open');
+    expect(detailsBlocks[1]).not.toContain(' open');
+  });
+
+  test('headerBg/headerColor/contentBg/borderColor emit into the panel styles', () => {
+    const { html } = toHtml({ items, headerBg: '#111111', headerColor: '#222222', contentBg: '#333333', borderColor: '#444444' }, '');
+    expect(html).toContain('#111111');
+    expect(html).toContain('#222222');
+    expect(html).toContain('#333333');
+    expect(html).toContain('#444444');
+  });
+});
+
+describe('Accordion.craft.props includes the box-model/animation/visibility rollout props', () => {
+  test('animation, animationDelay, and all 3 hideOn* flags are declared (blank/false defaults)', () => {
+    const props = (Accordion as any).craft.props;
+    expect(props).toHaveProperty('animation', '');
+    expect(props).toHaveProperty('animationDelay', '');
+    expect(props).toHaveProperty('hideOnDesktop', false);
+    expect(props).toHaveProperty('hideOnTablet', false);
+    expect(props).toHaveProperty('hideOnMobile', false);
+  });
+});