合并 master 更新到 AI 游戏创作分支

合入 master 的画布 Agent、精选素材审核、外部编辑器 API 与认证投影更新
保留当前分支的 AI 游戏创作壳、配置项和 LLM 运行接口改造
解决图片编辑器、LLM、去背景完成、外部生成排序和文档冲突
沿用 master 的 SpacetimeDB auth_store_projection 迁移与生成绑定

src/components/platform-entry/PlatformEntryFlowShellImpl.tsx

@@ -119,6 +119,7 @@ import { useHostNetworkOnline } from '../../hooks/useHostNetworkOnline';
 import {
   buildPublicWorkStagePath,
   pushAppHistoryPath,
+  replaceAppHistoryPath,
   resolvePathForSelectionStage,
 } from '../../routing/appPageRoutes';
 import { resolveWorkNotFoundRecoveryAction } from '../../routing/runtimeNotFoundRecovery';
@@ -3759,15 +3760,33 @@ export function PlatformEntryFlowShellImpl({
     setSelectionStage('project');
   }, [setSelectionStage]);
 
+  const replaceWithProjectGallery = useCallback(() => {
+    replaceAppHistoryPath('/project');
+    setSelectionStage('project');
+  }, [setSelectionStage]);
+
   const openCreationCommunity = useCallback(() => {
     setIsCreationCommunityOpen(true);
   }, []);
 
-  const openEditorProject = useCallback((projectId: string) => {
-    setSelectionStage('image-editor', {
-      path: `/editor/canvas?projectid=${encodeURIComponent(projectId)}`,
-    });
-  }, [setSelectionStage]);
+  const openEditorProject = useCallback(
+    (
+      projectId: string,
+      options?: { guide?: boolean; tool?: string },
+    ) => {
+      const params = new URLSearchParams({ projectid: projectId });
+      if (options?.tool) {
+        params.set('tool', options.tool);
+      }
+      if (options?.guide) {
+        params.set('guide', 'toolbar');
+      }
+      setSelectionStage('image-editor', {
+        path: `/editor/canvas?${params.toString()}`,
+      });
+    },
+    [setSelectionStage],
+  );
 
   const openCreationTypeModal = useCallback(() => {
     if (!prepareCreationLaunch()) {
@@ -15707,7 +15726,9 @@ export function PlatformEntryFlowShellImpl({
             <Suspense
               fallback={<LazyPanelFallback label="正在加载编辑器..." />}
             >
-              <ImageCanvasEditorView />
+              <ImageCanvasEditorView
+                onProjectAccessLost={replaceWithProjectGallery}
+              />
             </Suspense>
           </motion.div>
         )}