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/creative-agent/CreativeAgentHome.test.tsx

@@ -56,9 +56,12 @@ test('CreativeAgentHome reuses shared button chrome for drawer and reward action
   const rewardButton = screen.getByRole('button', {
     name: '搓闪应用 分1亿激励',
   });
+  const promptButton = screen.getByRole('button', { name: '你是谁' });
 
   expect(menuButton.className).toContain('platform-icon-button');
   expect(rewardButton.className).toContain('platform-button');
+  expect(promptButton.className).toContain('platform-button');
+  expect(promptButton.className).toContain('creative-agent-home__prompt');
 
   await user.click(menuButton);
 

src/components/creative-agent/CreativeAgentHome.tsx

@@ -143,8 +143,9 @@ function CreativeAgentPromptButton({
   const Icon = item.icon;
 
   return (
-    <button
-      type="button"
+    <PlatformActionButton
+      tone="secondary"
+      shape="pill"
       disabled={disabled}
       onClick={onClick}
       className={`creative-agent-home__prompt creative-agent-home__prompt--${item.tone}`}
@@ -154,7 +155,7 @@ function CreativeAgentPromptButton({
       {item.badge ? (
         <span className="creative-agent-home__prompt-badge">{item.badge}</span>
       ) : null}
-    </button>
+    </PlatformActionButton>
   );
 }