fix public work author display

src/components/platform-entry/PlatformEntryFlowShellImpl.tsx

@@ -15295,6 +15295,7 @@ export function PlatformEntryFlowShellImpl({
             <PlatformWorkDetailView
               entry={selectedPublicWorkDetail}
               authorAvatarUrl={selectedPublicWorkAuthor?.avatarUrl ?? null}
+              authorUsername={selectedPublicWorkAuthor?.username ?? null}
               authorDisplayName={selectedPublicWorkAuthor?.displayName ?? null}
               isBusy={
                 isPublicWorkDetailBusy ||
@@ -15342,6 +15343,7 @@ export function PlatformEntryFlowShellImpl({
               <PlatformWorkDetailView
                 entry={mapRpgGalleryCardToPublicWorkDetail(selectedDetailEntry)}
                 authorAvatarUrl={selectedPublicWorkAuthor?.avatarUrl ?? null}
+                authorUsername={selectedPublicWorkAuthor?.username ?? null}
                 authorDisplayName={
                   selectedPublicWorkAuthor?.displayName ?? null
                 }

src/components/platform-entry/PlatformWorkDetailView.test.tsx

@@ -9,6 +9,7 @@ import {
   EDUTAINMENT_BABY_OBJECT_MATCH_TEMPLATE_NAME,
   type PlatformEdutainmentGalleryCard,
   type PlatformPuzzleGalleryCard,
+  type PlatformWoodenFishGalleryCard,
 } from '../rpg-entry/rpgEntryWorldPresentation';
 import { PlatformWorkDetailView } from './PlatformWorkDetailView';
 
@@ -82,6 +83,29 @@ function createBabyObjectMatchEntry(): PlatformEdutainmentGalleryCard {
   };
 }
 
+function createWoodenFishEntry(): PlatformWoodenFishGalleryCard {
+  return {
+    sourceType: 'wooden-fish',
+    workId: 'wooden-fish-work-1',
+    profileId: 'wooden-fish-profile-1',
+    publicWorkCode: 'WF-001',
+    ownerUserId: 'user-wooden-fish',
+    authorDisplayName: '敲木鱼玩家',
+    worldName: '莲花木鱼',
+    subtitle: '敲木鱼',
+    summaryText: '莲花主题敲木鱼。',
+    coverImageSrc: null,
+    themeTags: ['敲木鱼'],
+    playCount: 12,
+    remixCount: 0,
+    likeCount: 4,
+    recentPlayCount7d: 0,
+    visibility: 'published',
+    publishedAt: '2026-05-20T10:00:00.000Z',
+    updatedAt: '2026-05-20T12:00:00.000Z',
+  };
+}
+
 afterEach(() => {
   vi.useRealTimers();
 });
@@ -133,6 +157,26 @@ test('PlatformWorkDetailView prefers resolved public user display name', () => {
   expect(screen.queryByText('137****6613')).toBeNull();
 });
 
+test('PlatformWorkDetailView prefers resolved username for wooden fish works', () => {
+  render(
+    <PlatformWorkDetailView
+      entry={createWoodenFishEntry()}
+      authorUsername="lotus_user"
+      authorDisplayName="公开昵称"
+      isBusy={false}
+      error={null}
+      onBack={vi.fn()}
+      onLike={vi.fn()}
+      onStart={vi.fn()}
+      onRemix={vi.fn()}
+    />,
+  );
+
+  expect(screen.getByText('lotus_user')).toBeTruthy();
+  expect(screen.queryByText('敲木鱼玩家')).toBeNull();
+  expect(screen.queryByText('公开昵称')).toBeNull();
+});
+
 test('PlatformWorkDetailView calls like handler', () => {
   const onLike = vi.fn();
   render(

src/components/platform-entry/PlatformWorkDetailView.tsx

@@ -25,6 +25,7 @@ import {
   isBarkBattleGalleryEntry,
   isEdutainmentGalleryEntry,
   type PlatformPublicGalleryCard,
+  resolvePlatformWorkAuthorDisplayName,
   resolvePlatformPublicWorkCode,
   resolvePlatformWorldCoverSlides,
   resolvePlatformWorldStats,
@@ -33,6 +34,7 @@ import {
 export interface PlatformWorkDetailViewProps {
   entry: PlatformPublicGalleryCard;
   authorAvatarUrl?: string | null;
+  authorUsername?: string | null;
   authorDisplayName?: string | null;
   isBusy: boolean;
   error?: string | null;
@@ -86,6 +88,7 @@ const PLATFORM_WORK_COVER_CAROUSEL_INTERVAL_MS = 4200;
 export function PlatformWorkDetailView({
   entry,
   authorAvatarUrl,
+  authorUsername,
   authorDisplayName,
   isBusy,
   visibleCoverCount = 1,
@@ -109,8 +112,10 @@ export function PlatformWorkDetailView({
   const hasCoverCarousel = coverSlides.length > 1;
   const publicWorkCode = resolvePlatformPublicWorkCode(entry);
   const normalizedAuthorAvatarUrl = authorAvatarUrl?.trim() ?? '';
-  const resolvedAuthorDisplayName =
-    authorDisplayName?.trim() || entry.authorDisplayName;
+  const resolvedAuthorDisplayName = resolvePlatformWorkAuthorDisplayName(
+    entry,
+    authorUsername?.trim() || authorDisplayName?.trim() || null,
+  );
   const [copyState, setCopyState] = useState<'idle' | 'copied' | 'failed'>(
     'idle',
   );