继续收口详情页头部动作组合

沉淀 PlatformDetailTopbar 与 PlatformDetailShareActions 共享骨架
接入 RPG 世界详情与公开作品详情的返回复制分享动作组合
补充测试护栏与文档决策记录

src/components/common/PlatformDetailShareActions.test.tsx

@@ -0,0 +1,52 @@
+/* @vitest-environment jsdom */
+
+import { render, screen } from '@testing-library/react';
+import { expect, test, vi } from 'vitest';
+
+import { PlatformDetailShareActions } from './PlatformDetailShareActions';
+
+test('renders overlay detail share actions with copied share state', () => {
+  render(
+    <PlatformDetailShareActions
+      workCode="CW-001"
+      copyState="idle"
+      onCopyWorkCode={vi.fn()}
+      shareState="copied"
+      onShare={vi.fn()}
+      shareAriaLabel="分享作品 测试世界"
+      leading={<span>已发布</span>}
+      variant="overlay"
+    />,
+  );
+
+  const codeButton = screen.getByRole('button', { name: '复制作品号 CW-001' });
+  const shareButton = screen.getByRole('button', { name: '分享作品 测试世界' });
+
+  expect(screen.getByText('已发布')).toBeTruthy();
+  expect(codeButton.className).toContain('bg-white/72');
+  expect(codeButton.className).toContain('tracking-[0.18em]');
+  expect(shareButton.className).toContain('bg-white/72');
+  expect(screen.getByText('已复制')).toBeTruthy();
+});
+
+test('renders solid detail share actions with compact work code chip', () => {
+  render(
+    <PlatformDetailShareActions
+      workCode="PZ-001"
+      copyState="idle"
+      onCopyWorkCode={vi.fn()}
+      shareState="idle"
+      onShare={vi.fn()}
+      shareAriaLabel="分享作品 拼图世界"
+      leading={<span>已发布</span>}
+      variant="solid"
+    />,
+  );
+
+  const codeButton = screen.getByRole('button', { name: 'PZ-001' });
+  const shareButton = screen.getByRole('button', { name: '分享作品 拼图世界' });
+
+  expect(codeButton.className).toContain('bg-[var(--platform-neutral-bg)]');
+  expect(shareButton.className).toContain('bg-[var(--platform-neutral-bg)]');
+  expect(screen.getByText('已发布')).toBeTruthy();
+});