diff --git a/apps/ai-game-creator-shell/src/view/project-development/index.tsx b/apps/ai-game-creator-shell/src/view/project-development/index.tsx
index 3e92d37e0..0107ed954 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/index.tsx
+++ b/apps/ai-game-creator-shell/src/view/project-development/index.tsx
@@ -61,6 +61,11 @@ import {
   LocalGamePreviewFrame,
   resolveEmbeddedPreviewUrl,
 } from '../../features/project-workspace/LocalGamePreviewFrame';
+import {
+  type ProjectManifestSnapshotMetadata,
+  resolveResourceFocusIntent,
+  type ResourceFocusIntent,
+} from './projectResourceLiveUpdateModel';
 import {
   RESOURCE_CANVAS_CARD_HEIGHT,
   RESOURCE_CANVAS_CARD_WIDTH,
@@ -71,11 +76,6 @@ import {
   type ProjectResourceCardPreviewState,
   summarizeProjectResourceDocument,
 } from './resourceCardPreviewModel';
-import {
-  type ProjectManifestSnapshotMetadata,
-  resolveResourceFocusIntent,
-  type ResourceFocusIntent,
-} from './projectResourceLiveUpdateModel';
 import {
   EMPTY_PROJECT_RESOURCE_GRAPH,
   normalizeProjectResourceGraph,
@@ -214,13 +214,6 @@ type NormalizeLocalProjectRasterResourceResult = {
   manifest: GameCreationAppManifest;
 };
 
-type LocalProjectImagePreview = {
-  path: string;
-  mediaType: string;
-  byteLen: number;
-  dataUrl: string;
-};
-
 export type ProjectAgentRuntimeSummary = {
   group: GameCreationAppAgentGroup;
   label: string;
@@ -306,52 +299,11 @@ const approvalOptions: Array<{
   },
 ];
 
-function isRasterImageResource(resource: ProjectResource) {
-  const mediaType = resource.mediaType.toLowerCase();
-  return (
-    ['image/png', 'image/jpeg', 'image/jpg', 'image/webp'].includes(
-      mediaType,
-    ) || /\.(png|jpe?g|webp)$/iu.test(resource.path)
-  );
-}
-
 function assetNameFromLocalPath(localPath: string) {
   const fileName = localPath.split(/[\\/]/u).filter(Boolean).pop() ?? '';
   return fileName.replace(/\.[^.]+$/u, '').trim() || '画布素材';
 }
 
-function isExtendedArtMediaResource(resource: ProjectResource) {
-  const mediaType = resource.mediaType.toLowerCase();
-  return (
-    resource.category === 'art' &&
-    (mediaType === 'image/svg+xml' ||
-      mediaType.startsWith('video/') ||
-      /\.(gif|svg|avif|bmp|mp4|webm|mov)$/iu.test(resource.path))
-  );
-}
-
-function mediaPreviewErrorMessage(error: unknown) {
-  const message = error instanceof Error ? error.message : String(error);
-  if (message.includes('项目权限策略要求用户确认')) {
-    return '当前项目策略要求先确认读取资源';
-  }
-  if (message.includes('项目权限策略拒绝执行')) {
-    return '当前项目策略不允许读取资源';
-  }
-  if (message.includes('不能超过')) {
-    return message;
-  }
-  if (message.includes('UTF-8') || message.includes('只支持')) {
-    return message;
-  }
-  if (message.includes('脚本或外部资源引用')) {
-    return message;
-  }
-  if (message.includes('发生漂移') || message.includes('发生替换')) {
-    return '资源读取期间发生变化，请关闭后重试';
-  }
-  return '资源暂时无法读取，请关闭后重试';
-}
 function formatMediaDuration(duration: number | null) {
   if (duration === null || !Number.isFinite(duration) || duration < 0) {
     return '载入后显示';