按后台配置扣除创作泥点

前端创作表单泥点预校验改为读取入口契约配置

拼图和抓大鹅初始生成后端扣费改为解析后台配置

汪汪声浪初始三图生成按入口总成本拆分扣费

创作工作台按钮和确认弹窗展示后台配置泥点成本

补充泥点扣费回归测试并同步文档与共享记忆

src/components/unified-creation/workspaces/PuzzleCreationWorkspace.interaction.test.tsx

@@ -173,6 +173,13 @@ function confirmPuzzlePointCost() {
   fireEvent.click(within(confirmDialog).getByRole('button', { name: '确定' }));
 }
 
+function confirmPuzzlePointCostText(text: string) {
+  const confirmDialog = screen.getByRole('dialog', {
+    name: '确认消耗泥点',
+  });
+  expect(within(confirmDialog).getByText(text)).toBeTruthy();
+}
+
 test('puzzle workspace submits the work form instead of agent chat', () => {
   const onCreateFromForm = vi.fn();
 
@@ -216,6 +223,27 @@ test('puzzle workspace submits the work form instead of agent chat', () => {
   expect(screen.queryByText('旧会话消息不再渲染为聊天入口。')).toBeNull();
 });
 
+test('puzzle workspace shows configured mud point cost', () => {
+  render(
+    <PuzzleCreationWorkspace
+      session={null}
+      onBack={() => {}}
+      onSubmitMessage={() => {}}
+      onExecuteAction={() => {}}
+      onCreateFromForm={() => {}}
+      mudPointCost={8}
+    />,
+  );
+
+  expect(screen.getByText('消耗8泥点')).toBeTruthy();
+  fireEvent.change(screen.getByLabelText('画面描述'), {
+    target: { value: '一座雨后的陶泥小镇。' },
+  });
+  fireEvent.click(screen.getByRole('button', { name: /生成拼图游戏草稿/u }));
+
+  confirmPuzzlePointCostText('消耗 8 泥点');
+});
+
 test('puzzle workspace can defer visible chrome to the unified creation page', () => {
   const { container } = render(
     <PuzzleCreationWorkspace