修复创作页精选作者和瀑布流宽度

公开精选接口返回作者展示名和陶泥号

前端精选作者只使用公开展示字段，不再兜底内部用户 ID

约束精选瀑布流多列容器宽度，避免 release 桌面端横向撑宽

补充前后端回归测试和项目记忆文档

src/services/image-editor/editorProjectClient.test.ts

@@ -221,6 +221,8 @@ describe('editorProjectClient', () => {
           resourceId: 'resource-public-1',
           projectId: 'editor-project-1',
           ownerUserId: 'user-public-author',
+          authorDisplayName: '公开作者',
+          authorPublicUserCode: 'SY-00000042',
           label: '公开角色素材',
           imageSrc: '/generated-editor-assets/public.png',
           width: 512,
@@ -236,6 +238,8 @@ describe('editorProjectClient', () => {
     expect(resources).toHaveLength(1);
     expect(resources[0]?.resourceId).toBe('resource-public-1');
     expect(resources[0]?.ownerUserId).toBe('user-public-author');
+    expect(resources[0]?.authorDisplayName).toBe('公开作者');
+    expect(resources[0]?.authorPublicUserCode).toBe('SY-00000042');
     expect(requestJsonMock).toHaveBeenCalledWith(
       '/api/editor/showcase/resources',
       { method: 'GET' },

src/services/image-editor/editorProjectClient.ts

@@ -60,6 +60,8 @@ export type EditorProjectResourceSnapshot = {
   resourceId: string;
   projectId: string;
   ownerUserId?: string | null;
+  authorDisplayName?: string | null;
+  authorPublicUserCode?: string | null;
   imageSrc: string;
   objectKey?: string | null;
   assetObjectId?: string | null;