fix rpg agent refresh restore route

src/services/customWorldAgentUiState.ts

@@ -56,6 +56,49 @@ function normalizeGenerationSource(value: unknown) {
   return value === 'agent-draft-foundation' ? value : null;
 }
 
+function hasExplicitAgentUiStateQuery(
+  params: URLSearchParams,
+) {
+  return (
+    params.has(CUSTOM_WORLD_AGENT_SESSION_QUERY_KEY) ||
+    params.has(CUSTOM_WORLD_AGENT_OPERATION_QUERY_KEY) ||
+    params.has(CUSTOM_WORLD_GENERATION_SOURCE_QUERY_KEY)
+  );
+}
+
+function normalizePathname(value: string | undefined) {
+  const pathname = value?.trim().toLowerCase() ?? '';
+  if (!pathname || pathname === '/') {
+    return '/';
+  }
+
+  return pathname.replace(/\/+$/u, '');
+}
+
+function isRpgCreationRestorePath(pathname: string | undefined) {
+  const normalizedPathname = normalizePathname(pathname);
+  return (
+    normalizedPathname === '/creation/rpg' ||
+    normalizedPathname.startsWith('/creation/rpg/')
+  );
+}
+
+export function shouldRestoreCustomWorldAgentUiState(
+  env?: CustomWorldAgentUiEnvironment,
+) {
+  const resolved = resolveEnvironment(env);
+  const params = new URLSearchParams(resolved.location?.search ?? '');
+
+  // URL 显式恢复参数优先于当前路径，用于支持外部分享或登录回跳后的深链恢复。
+  if (hasExplicitAgentUiStateQuery(params)) {
+    return true;
+  }
+
+  // sessionStorage 里的残留指针只能在 RPG 创作页面生效，
+  // 避免刷新平台首页时被旧工作区状态强制带到 Agent 页面。
+  return isRpgCreationRestorePath(resolved.location?.pathname);
+}
+
 export function readCustomWorldAgentUiState(
   env?: CustomWorldAgentUiEnvironment,
 ): CustomWorldAgentUiState {