收口标准泥点确认弹窗

新增 PlatformMudPointConfirmDialog 统一承接标准泥点消耗确认壳层
迁移拼图与抓大鹅创作工作台复用共享泥点确认弹窗
迁移拼图与抓大鹅结果页素材生成流程复用共享泥点确认弹窗
补充共享组件测试并更新 PlatformUiKit 收口文档与决策记录

src/components/common/PlatformMudPointConfirmDialog.test.tsx

@@ -0,0 +1,53 @@
+/* @vitest-environment jsdom */
+
+import { fireEvent, render, screen, within } from '@testing-library/react';
+import { expect, test, vi } from 'vitest';
+
+import { PlatformMudPointConfirmDialog } from './PlatformMudPointConfirmDialog';
+
+test('renders standard mud point confirmation copy and forwards confirm', () => {
+  const onClose = vi.fn();
+  const onConfirm = vi.fn();
+
+  render(
+    <PlatformMudPointConfirmDialog
+      open
+      points={8}
+      onClose={onClose}
+      onConfirm={onConfirm}
+      portal={false}
+    />,
+  );
+
+  const dialog = screen.getByRole('dialog', { name: '确认消耗泥点' });
+
+  expect(within(dialog).getByText('消耗 8 泥点')).toBeTruthy();
+
+  fireEvent.click(within(dialog).getByRole('button', { name: '确定' }));
+  expect(onConfirm).toHaveBeenCalledTimes(1);
+});
+
+test('supports extra detail copy and close button override', () => {
+  const onClose = vi.fn();
+
+  render(
+    <PlatformMudPointConfirmDialog
+      open
+      points={7}
+      title="保存正式素材"
+      description="角色形象"
+      onClose={onClose}
+      onConfirm={vi.fn()}
+      showCloseButton={false}
+      portal={false}
+    >
+      本次会覆盖当前待确认素材。
+    </PlatformMudPointConfirmDialog>,
+  );
+
+  const dialog = screen.getByRole('dialog', { name: '保存正式素材' });
+
+  expect(within(dialog).getByText('消耗 7 泥点')).toBeTruthy();
+  expect(within(dialog).getByText('本次会覆盖当前待确认素材。')).toBeTruthy();
+  expect(screen.queryByRole('button', { name: '关闭' })).toBeNull();
+});