收口智能创作与大鱼动作按钮

将智能创作首页 prompt suggestion 按钮迁移到共享动作按钮组件
将大鱼吃小鱼结果页 hero 动作迁移到共享按钮组件
补充轻量列表行暂不单独抽象的团队决策与收口文档

src/components/big-fish-result/BigFishResultView.test.tsx

@@ -336,6 +336,27 @@ describe('BigFishResultView', () => {
     }
   });
 
+  test('reuses shared hero action chrome for top-level result actions', () => {
+    render(
+      <BigFishResultView
+        session={createSession()}
+        onBack={() => {}}
+        onExecuteAction={() => {}}
+        onStartTestRun={() => {}}
+      />,
+    );
+
+    expect(screen.getByRole('button', { name: '返回' }).className).toContain(
+      'rounded-full',
+    );
+    expect(screen.getByRole('button', { name: '测试' }).className).toContain(
+      'platform-action-button--editor-dark',
+    );
+    expect(screen.getByRole('button', { name: '发布' }).className).toContain(
+      'platform-action-button--editor-dark',
+    );
+  });
+
   test('shows publish failures in a dismissible modal', () => {
     const onDismissError = vi.fn();