收口创作入口契约后台表单

将统一创作契约泥点消耗改为数字字段并由前端格式化展示
将后台契约编辑从 JSON 文本改为结构化卡片与弹窗表单
隐藏玩法阶段等内部标识并按玩法默认映射自动带出
更新创作入口文档、团队记忆和回归测试

src/components/custom-world-home/CustomWorldCreationHub.test.tsx

@@ -241,7 +241,7 @@ test('creation start card renders reference-aligned banner and template metadata
   expect(html).toContain('creation-template-card__body');
   expect(html).toContain('creation-template-card__cost-badge');
   expect(html).toContain('拼图关卡创作');
-  expect(html).toContain('10-20泥点数');
+  expect(html).toContain('10泥点数');
   expect(html).toContain('即将开放');
   expect(html).toContain('data-locked="true"');
   expect(html).toContain('暂未开放');
@@ -292,7 +292,62 @@ test('locked creation template card replaces mud point cost with unavailable sta
   expect(html).toContain('data-locked="true"');
   expect(html).toContain('即将开放');
   expect(html).toContain('暂未开放');
-  expect(html).not.toContain('10-20泥点数');
+  expect(html).not.toContain('10泥点数');
+});
+
+test('creation template card renders mud point cost from unified creation spec', () => {
+  const config = {
+    ...testEntryConfig,
+    creationTypes: [
+      {
+        id: 'puzzle',
+        title: '拼图',
+        subtitle: '拼图关卡创作',
+        badge: '可创建',
+        imageSrc: '/creation-type-references/puzzle.webp',
+        visible: true,
+        open: true,
+        sortOrder: 30,
+        categoryId: 'recommended',
+        categoryLabel: '热门推荐',
+        categorySortOrder: 20,
+        updatedAtMicros: 1,
+        unifiedCreationSpec: {
+          playId: 'puzzle',
+          title: '拼图',
+          mudPointCost: 12,
+          workspaceStage: 'puzzle-agent-workspace',
+          generationStage: 'puzzle-generating',
+          resultStage: 'puzzle-result',
+          fields: [
+            {
+              id: 'pictureDescription',
+              kind: 'text',
+              label: '画面描述',
+              required: true,
+            },
+          ],
+        },
+      },
+    ],
+  } satisfies CreationEntryConfig;
+  const html = renderToStaticMarkup(
+    <CustomWorldCreationHub
+      items={[]}
+      loading={false}
+      error={null}
+      onRetry={() => {}}
+      onCreateType={noopCreateType}
+      onOpenDraft={() => {}}
+      onEnterPublished={() => {}}
+      entryConfig={config}
+      creationTypes={derivePlatformCreationTypes(config.creationTypes)}
+      mode="start-only"
+    />,
+  );
+
+  expect(html).toContain('12泥点数');
+  expect(html).not.toContain('10泥点数');
 });
 
 test('creation start card falls back to legacy single banner when eventBanners is empty', () => {