收口运行态状态提示组件

新增 PlatformRuntimeStatusToast 统一运行态短错误、成功和反馈 toast
迁移跳一跳、拼图、敲木鱼、方洞和宝贝爱画运行态状态 chip
补充公共组件与运行态回归测试，并更新 PlatformUiKit 文档和 Hermes 决策记录

src/components/common/PlatformRuntimeStatusToast.test.tsx

@@ -0,0 +1,46 @@
+/* @vitest-environment jsdom */
+
+import { render, screen } from '@testing-library/react';
+import { expect, test } from 'vitest';
+
+import { PlatformRuntimeStatusToast } from './PlatformRuntimeStatusToast';
+
+test('renders error runtime toast with alert semantics', () => {
+  render(
+    <PlatformRuntimeStatusToast tone="error" className="mt-2">
+      操作失败
+    </PlatformRuntimeStatusToast>,
+  );
+
+  const toast = screen.getByRole('alert');
+
+  expect(toast.className).toContain('platform-runtime-status-toast');
+  expect(toast.className).toContain('rounded-full');
+  expect(toast.className).toContain(
+    'text-[var(--platform-button-danger-text)]',
+  );
+  expect(toast.className).toContain('mt-2');
+  expect(toast.getAttribute('aria-live')).toBe('assertive');
+});
+
+test('supports dark and solid runtime surfaces', () => {
+  const { rerender } = render(
+    <PlatformRuntimeStatusToast tone="success" surface="dark" shape="rounded">
+      命中
+    </PlatformRuntimeStatusToast>,
+  );
+
+  expect(screen.getByRole('status').className).toContain(
+    'border-emerald-200/35',
+  );
+  expect(screen.getByRole('status').className).toContain('rounded-[1.2rem]');
+
+  rerender(
+    <PlatformRuntimeStatusToast tone="error" surface="solid" size="md">
+      运行失败
+    </PlatformRuntimeStatusToast>,
+  );
+
+  expect(screen.getByRole('alert').className).toContain('bg-rose-600');
+  expect(screen.getByRole('alert').className).toContain('px-4');
+});