修复推荐页切作品误报无法进入

区分推荐运行态启动 pending 与真实失败

切作品时保持封面遮罩等待自动重试

补充推荐页 pending 切换回归测试

更新玩法链路文档的失败态判断口径

src/components/platform-entry/PlatformEntryFlowShellImpl.tsx

@@ -12794,6 +12794,54 @@ export function PlatformEntryFlowShellImpl({
       setPuzzleError(null);
     }
   }, [activeRecommendRuntimeKind, setPuzzleError]);
+  const isRecommendRuntimeStartPending = useCallback(
+    (runtimeKind: RecommendRuntimeKind) => {
+      if (runtimeKind === 'big-fish') {
+        return isBigFishBusy;
+      }
+      if (runtimeKind === 'match3d') {
+        return isMatch3DBusy;
+      }
+      if (runtimeKind === 'puzzle') {
+        return isPuzzleBusy || puzzleStartInFlightKeyRef.current !== null;
+      }
+      if (runtimeKind === 'jump-hop') {
+        return isJumpHopBusy;
+      }
+      if (runtimeKind === 'puzzle-clear') {
+        return isPuzzleClearBusy;
+      }
+      if (runtimeKind === 'wooden-fish') {
+        return isWoodenFishBusy;
+      }
+      if (runtimeKind === 'square-hole') {
+        return isSquareHoleBusy;
+      }
+      if (runtimeKind === 'visual-novel') {
+        return isVisualNovelBusy;
+      }
+      if (runtimeKind === 'bark-battle') {
+        return isBarkBattleBusy;
+      }
+      if (runtimeKind === 'edutainment') {
+        return isBabyObjectMatchBusy;
+      }
+
+      return false;
+    },
+    [
+      isBabyObjectMatchBusy,
+      isBarkBattleBusy,
+      isBigFishBusy,
+      isJumpHopBusy,
+      isMatch3DBusy,
+      isPuzzleBusy,
+      isPuzzleClearBusy,
+      isSquareHoleBusy,
+      isVisualNovelBusy,
+      isWoodenFishBusy,
+    ],
+  );
 
   const leaveAgentWorkspace = useCallback(() => {
     sessionController.resetSessionViewState();
@@ -15843,6 +15891,11 @@ export function PlatformEntryFlowShellImpl({
         if (started) {
           setActiveRecommendRuntimeKind(runtimeKind);
           setActiveRecommendRuntimeError(null);
+        } else if (isRecommendRuntimeStartPending(runtimeKind)) {
+          // 中文注释：切换推荐作品时，旧作品启动请求或退出收口可能仍在进行；
+          // 这类中间态继续保留封面遮罩，不能误报成作品不可进入。
+          setActiveRecommendRuntimeKind(runtimeKind);
+          setActiveRecommendRuntimeError(null);
         } else {
           setActiveRecommendRuntimeKind(null);
           setActiveRecommendRuntimeError('作品暂时无法进入，请稍后再试。');
@@ -15863,6 +15916,7 @@ export function PlatformEntryFlowShellImpl({
     [
       activeRecommendEntryKey,
       barkBattleGalleryEntries,
+      isRecommendRuntimeStartPending,
       saveAndExitRecommendPuzzleRuntime,
       selectedPuzzleDetail,
       setBarkBattleError,
@@ -16394,7 +16448,9 @@ export function PlatformEntryFlowShellImpl({
 
     if (
       (activeRecommendEntry !== null && isActiveRecommendRuntimeReady) ||
-      isStartingRecommendEntry
+      isStartingRecommendEntry ||
+      (activeRecommendRuntimeKind !== null &&
+        isRecommendRuntimeStartPending(activeRecommendRuntimeKind))
     ) {
       return;
     }
@@ -16413,6 +16469,7 @@ export function PlatformEntryFlowShellImpl({
     bigFishRun,
     jumpHopRun,
     isActiveRecommendRuntimeReady,
+    isRecommendRuntimeStartPending,
     isStartingRecommendEntry,
     match3dRun,
     platformBootstrap.isLoadingPlatform,