修复小游戏生成页恢复生成态

按生成状态判定小游戏生成页是否仍在生成中

补充敲木鱼生成中草稿恢复回归测试

记录小游戏生成页恢复 busy 判定踩坑

.hermes/shared-memory/pitfalls.md

@@ -128,6 +128,14 @@
 - 验证：`npm run test -- src/components/rpg-entry/RpgEntryFlowShell.agent.interaction.test.tsx -t "persisted generating puzzle draft"`，并确认恢复生成中草稿后 `getPuzzleAgentSession` 不会因为进度刷新继续连发。
 - 关联：`src/components/platform-entry/PlatformEntryFlowShellImpl.tsx`、`src/components/platform-entry/usePlatformCreationAgentFlowController.ts`、`src/components/platform-entry/usePlatformCreationAgentFlowController.test.tsx`。
 
+## 小游戏恢复生成页不要只用请求 busy 判定是否生成中
+
+- 现象：敲木鱼作品架里的生成中草稿点击进入生成页后，页面会显示“重新生成草稿”按钮，而不是继续显示素材生成中的等待态。
+- 原因：平台壳恢复 `generationStatus=generating` 草稿时会把 `isBusy` 置回 false，只保留 `MiniGameDraftGenerationState` 作为生成事实；生成页如果只把请求 busy 传给 `isGenerating`，共用生成页会误判为空闲态并展示重试按钮。
+- 处理：小游戏生成页的 `isGenerating` 必须由 `isBusy || isMiniGameDraftGenerating(generationState)` 推导；跳一跳、拼消消、敲木鱼等从作品架恢复的生成页都要使用同一口径。
+- 验证：`npm run test -- src/components/platform-entry/PlatformEntryFlowShellImpl.test.ts` 应覆盖 `busy=false` 但敲木鱼 generation state 仍在生成中时继续隐藏重试入口。
+- 关联：`src/components/platform-entry/PlatformEntryFlowShellImpl.tsx`、`src/components/unified-creation/UnifiedGenerationPage.tsx`、`docs/【玩法创作】平台入口与玩法链路-2026-05-15.md`。
+
 ## 拼图试玩恢复 query 必须先切到运行态路径再写
 
 - 现象：拼图试玩或正式运行态打开后，刷新会停在“正在进入拼图关卡”，或地址栏只有 `runtimeProfileId`，缺少草稿 `runtimeSessionId`。

src/components/platform-entry/PlatformEntryFlowShellImpl.test.ts

@@ -1,9 +1,11 @@
 import { describe, expect, test } from 'vitest';
 
 import {
+  resolveMiniGameGenerationViewBusy,
   resolveMiniGameGenerationProgressTickState,
 } from './PlatformEntryFlowShellImpl';
 import { createMiniGameDraftGenerationState } from '../../services/miniGameDraftGenerationProgress';
+import { resolveFinishedMiniGameDraftGenerationState } from './platformMiniGameDraftGenerationStateModel';
 
 describe('resolveMiniGameGenerationProgressTickState', () => {
   test('returns jump hop and wooden fish generation states for progress ticking', () => {
@@ -30,3 +32,28 @@ describe('resolveMiniGameGenerationProgressTickState', () => {
     ).toBeNull();
   });
 });
+
+describe('resolveMiniGameGenerationViewBusy', () => {
+  test('敲木鱼恢复生成中草稿时继续隐藏重新生成按钮', () => {
+    const woodenFishGeneratingState =
+      createMiniGameDraftGenerationState('wooden-fish');
+
+    expect(
+      resolveMiniGameGenerationViewBusy(false, woodenFishGeneratingState),
+    ).toBe(true);
+  });
+
+  test('生成态结束后只保留真实 busy', () => {
+    const woodenFishReadyState = resolveFinishedMiniGameDraftGenerationState(
+      createMiniGameDraftGenerationState('wooden-fish'),
+      'ready',
+    );
+
+    expect(resolveMiniGameGenerationViewBusy(false, woodenFishReadyState)).toBe(
+      false,
+    );
+    expect(resolveMiniGameGenerationViewBusy(true, woodenFishReadyState)).toBe(
+      true,
+    );
+  });
+});

src/components/platform-entry/PlatformEntryFlowShellImpl.tsx

@@ -696,6 +696,13 @@ export function resolveMiniGameGenerationProgressTickState(
   return kind ? (states[kind] ?? null) : null;
 }
 
+export function resolveMiniGameGenerationViewBusy(
+  isBusy: boolean,
+  state: MiniGameDraftGenerationState | null | undefined,
+) {
+  return isBusy || isMiniGameDraftGenerating(state ?? null);
+}
+
 type PuzzleDetailReturnTarget = {
   tab: PlatformHomeTab;
 };
@@ -4454,11 +4461,10 @@ export function PlatformEntryFlowShellImpl({
     activeMatch3DBackgroundCompileTask?.payload ?? match3dFormDraftPayload;
   const match3dGenerationViewError =
     activeMatch3DBackgroundCompileTask?.error ?? match3dError;
-  const isMatch3DGenerationViewBusy =
+  const isMatch3DGenerationViewBusy = resolveMiniGameGenerationViewBusy(
-    isMatch3DBusy ||
+    isMatch3DBusy,
-    isMiniGameDraftGenerating(
+    match3dGenerationViewState,
-      activeMatch3DBackgroundCompileTask?.generationState ?? null,
+  );
-    );
   const activePuzzleGenerationSessionId =
     selectionStage === 'puzzle-generating'
       ? (activePuzzleGenerationSessionIdRef.current ??
@@ -4488,11 +4494,22 @@ export function PlatformEntryFlowShellImpl({
   }, [puzzleFlow.setSession]);
   const puzzleGenerationViewError =
     activePuzzleBackgroundCompileTask?.error ?? puzzleError;
-  const isPuzzleGenerationViewBusy =
+  const isPuzzleGenerationViewBusy = resolveMiniGameGenerationViewBusy(
-    isPuzzleBusy ||
+    isPuzzleBusy,
-    isMiniGameDraftGenerating(
+    puzzleGenerationViewState,
-      activePuzzleBackgroundCompileTask?.generationState ?? null,
+  );
-    );
+  const isJumpHopGenerationViewBusy = resolveMiniGameGenerationViewBusy(
+    isJumpHopBusy,
+    jumpHopGenerationState,
+  );
+  const isPuzzleClearGenerationViewBusy = resolveMiniGameGenerationViewBusy(
+    isPuzzleClearBusy,
+    puzzleClearGenerationState,
+  );
+  const isWoodenFishGenerationViewBusy = resolveMiniGameGenerationViewBusy(
+    isWoodenFishBusy,
+    woodenFishGenerationState,
+  );
   const platformBootstrapErrorForDisplay = isCreationEntryDisabledErrorMessage(
     platformBootstrap.platformError,
   )
@@ -15592,7 +15609,7 @@ export function PlatformEntryFlowShellImpl({
                   jumpHopGenerationState,
                   miniGameGenerationProgressNowMs,
                 )}
-                isGenerating={isJumpHopBusy}
+                isGenerating={isJumpHopGenerationViewBusy}
                 error={jumpHopError}
                 onBack={leaveJumpHopFlow}
                 onEditSetting={() => {
@@ -15728,7 +15745,7 @@ export function PlatformEntryFlowShellImpl({
                   puzzleClearGenerationState,
                   miniGameGenerationProgressNowMs,
                 )}
-                isGenerating={isPuzzleClearBusy}
+                isGenerating={isPuzzleClearGenerationViewBusy}
                 error={puzzleClearError}
                 onBack={leavePuzzleClearFlow}
                 onEditSetting={() => {
@@ -15867,7 +15884,7 @@ export function PlatformEntryFlowShellImpl({
                   woodenFishGenerationState,
                   miniGameGenerationProgressNowMs,
                 )}
-                isGenerating={isWoodenFishBusy}
+                isGenerating={isWoodenFishGenerationViewBusy}
                 error={woodenFishError}
                 onBack={leaveWoodenFishFlow}
                 onEditSetting={() => {