merge: database backed creation entry config

# Conflicts:
#	src/components/platform-entry/PlatformEntryFlowShellImpl.tsx

src/components/platform-entry/PlatformEntryFlowShellImpl.tsx

@@ -1,4 +1,4 @@
-import { ArrowRight, Loader2, Sparkles } from 'lucide-react';
+import { ArrowRight, Loader2, Sparkles } from 'lucide-react';
 import { AnimatePresence, motion } from 'motion/react';
 import {
   type Dispatch,
@@ -99,10 +99,15 @@ import {
   buildPublicWorkStagePath,
   pushAppHistoryPath,
 } from '../../routing/appPageRoutes';
+import { resolveRuntimeNotFoundRecoveryAction } from '../../routing/runtimeNotFoundRecovery';
 import {
   ApiClientError,
   BACKGROUND_AUTH_REQUEST_OPTIONS,
 } from '../../services/apiClient';
+import {
+  fetchCreationEntryConfig,
+  type CreationEntryConfig,
+} from '../../services/creationEntryConfigService';
 import {
   getPublicAuthUserByCode,
   getPublicAuthUserById,
@@ -299,6 +304,7 @@ import {
 import { PlatformEntryCreationTypeModal } from './PlatformEntryCreationTypeModal';
 import type { PlatformCreationTypeId } from './platformEntryCreationTypes';
 import {
+  derivePlatformCreationTypes,
   getVisiblePlatformCreationTypes,
   isPlatformCreationTypeVisible,
 } from './platformEntryCreationTypes';
@@ -883,6 +889,24 @@ function isMissingPuzzleWorkError(error: unknown) {
   );
 }
 
+function maybeAlertRuntimeNotFoundAndReturnHome() {
+  if (typeof window === 'undefined') {
+    return false;
+  }
+
+  const recoveryAction = resolveRuntimeNotFoundRecoveryAction(
+    window.location.pathname,
+  );
+  if (!recoveryAction) {
+    return false;
+  }
+
+  // 中文注释：直接 runtime 深链找不到作品时，弹窗确认后立刻回首页，避免保留空白运行态。
+  window.alert('作品不存在或已下架，将返回首页。');
+  pushAppHistoryPath(recoveryAction.nextPath);
+  return true;
+}
+
 function hasSeenPuzzleOnboarding() {
   if (typeof window === 'undefined') {
     return true;
@@ -1699,7 +1723,22 @@ export function PlatformEntryFlowShellImpl({
   ] = useState<string | null>(null);
   const [publishSharePayload, setPublishSharePayload] =
     useState<PublishShareModalPayload | null>(null);
-  const isBigFishCreationVisible = isPlatformCreationTypeVisible('big-fish');
+  const [creationEntryConfig, setCreationEntryConfig] =
+    useState<CreationEntryConfig | null>(null);
+  const [creationEntryConfigError, setCreationEntryConfigError] = useState<
+    string | null
+  >(null);
+  const creationEntryTypes = useMemo(
+    () =>
+      creationEntryConfig
+        ? derivePlatformCreationTypes(creationEntryConfig.creationTypes)
+        : [],
+    [creationEntryConfig],
+  );
+  const isBigFishCreationVisible = isPlatformCreationTypeVisible(
+    creationEntryTypes,
+    'big-fish',
+  );
   const [profilePlayStats, setProfilePlayStats] =
     useState<ProfilePlayStatsResponse | null>(null);
   const [profilePlayStatsError, setProfilePlayStatsError] = useState<
@@ -1715,6 +1754,27 @@ export function PlatformEntryFlowShellImpl({
   );
   const handledInitialPublicWorkCodeRef = useRef<string | null>(null);
 
+  useEffect(() => {
+    let cancelled = false;
+    setCreationEntryConfigError(null);
+    void fetchCreationEntryConfig()
+      .then((config) => {
+        if (!cancelled) {
+          setCreationEntryConfig(config);
+        }
+      })
+      .catch((error: unknown) => {
+        if (!cancelled) {
+          setCreationEntryConfigError(
+            error instanceof Error ? error.message : '读取创作入口配置失败。',
+          );
+        }
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+
   const platformBootstrap = usePlatformEntryBootstrap({
     user: authUi?.user,
     canAccessProtectedData: authUi?.canAccessProtectedData,
@@ -4274,7 +4334,9 @@ export function PlatformEntryFlowShellImpl({
           setPublicWorkDetailError(null);
           setPlatformTab('home');
           setSelectionStage('platform');
-          pushAppHistoryPath('/');
+          if (!maybeAlertRuntimeNotFoundAndReturnHome()) {
+            pushAppHistoryPath('/');
+          }
           return false;
         }
 
@@ -5774,7 +5836,9 @@ export function PlatformEntryFlowShellImpl({
           setPublicWorkDetailError(null);
           setPlatformTab('home');
           setSelectionStage('platform');
-          pushAppHistoryPath('/');
+          if (!maybeAlertRuntimeNotFoundAndReturnHome()) {
+            pushAppHistoryPath('/');
+          }
           return;
         }
 
@@ -5993,7 +6057,9 @@ export function PlatformEntryFlowShellImpl({
           setPublicWorkDetailError(null);
           setPlatformTab('home');
           setSelectionStage('platform');
-          pushAppHistoryPath('/');
+          if (!maybeAlertRuntimeNotFoundAndReturnHome()) {
+            pushAppHistoryPath('/');
+          }
           return;
         }
 
@@ -7567,7 +7633,8 @@ export function PlatformEntryFlowShellImpl({
     fallbackLabel: string,
   ) => (
     <Suspense fallback={<LazyPanelFallback label={fallbackLabel} />}>
-      <CustomWorldCreationHub
+      {creationEntryConfig ? (
+        <CustomWorldCreationHub
         mode={mode}
         items={creationHubItems}
         loading={
@@ -7597,6 +7664,14 @@ export function PlatformEntryFlowShellImpl({
         }
         onRetry={() => {
           platformBootstrap.setPlatformError(null);
+          setCreationEntryConfigError(null);
+          void fetchCreationEntryConfig()
+            .then(setCreationEntryConfig)
+            .catch((error: unknown) => {
+              setCreationEntryConfigError(
+                error instanceof Error ? error.message : '读取创作入口配置失败。',
+              );
+            });
           setBigFishError(null);
           setMatch3DError(null);
           setSquareHoleError(null);
@@ -7618,6 +7693,7 @@ export function PlatformEntryFlowShellImpl({
           void refreshVisualNovelShelf();
         }}
         createError={
+          creationEntryConfigError ??
           sessionController.creationTypeError ??
           bigFishError ??
           match3dError ??
@@ -7627,6 +7703,7 @@ export function PlatformEntryFlowShellImpl({
           visualNovelError
         }
         createBusy={
+          !creationEntryConfig ||
           sessionController.isCreatingAgentSession ||
           isCreativeAgentBusy ||
           isCreativeAgentStreaming ||
@@ -7637,6 +7714,8 @@ export function PlatformEntryFlowShellImpl({
           isVisualNovelBusy ||
           isVisualNovelStreamingReply
         }
+        entryConfig={creationEntryConfig}
+        creationTypes={creationEntryTypes}
         onCreateType={handleCreationHubCreateType}
         onOpenDraft={(item) => {
           runProtectedAction(() => {
@@ -7717,6 +7796,7 @@ export function PlatformEntryFlowShellImpl({
           handleDeleteVisualNovelWork(item);
         }}
       />
+      ) : null}
     </Suspense>
   );
   const creationStartContent = (
@@ -7728,7 +7808,7 @@ export function PlatformEntryFlowShellImpl({
             role="tablist"
             aria-label="选择模板"
           >
-            {getVisiblePlatformCreationTypes().map((item) => {
+            {getVisiblePlatformCreationTypes(creationEntryTypes).map((item) => {
               const selected = item.id === activeCreationFormType;
               const disabled =
                 item.locked ||
@@ -9438,7 +9518,8 @@ export function PlatformEntryFlowShellImpl({
           )}
       </AnimatePresence>
 
-      <PlatformEntryCreationTypeModal
+      {creationEntryConfig ? (
+        <PlatformEntryCreationTypeModal
         isOpen={showCreationTypeModal}
         isBusy={
           sessionController.isCreatingAgentSession ||
@@ -9452,6 +9533,7 @@ export function PlatformEntryFlowShellImpl({
           isVisualNovelStreamingReply
         }
         error={
+          creationEntryConfigError ??
           bigFishError ??
           creativeAgentError ??
           match3dError ??
@@ -9461,6 +9543,8 @@ export function PlatformEntryFlowShellImpl({
           puzzleError ??
           sessionController.creationTypeError
         }
+        entryConfig={creationEntryConfig}
+        creationTypes={creationEntryTypes}
         onClose={() => {
           if (
             sessionController.isCreatingAgentSession ||
@@ -9507,6 +9591,7 @@ export function PlatformEntryFlowShellImpl({
           handleCreationHubCreateType('visual-novel');
         }}
       />
+      ) : null}
       <PublishShareModal
         open={Boolean(publishSharePayload)}
         payload={publishSharePayload}