fix: cache yuser login info by user id

frontend-web/src/core/auth/yuser-login.ts

@@ -9,6 +9,8 @@ export const EXTERNAL_USER_ID_STORAGE_KEY = "userId";
 export const EXTERNAL_USER_INFO_STORAGE_KEY = "userInfo";
 export const GENERAL_QA_ROUTE = "/page/workspace/chats/new";
 
+const YUSER_INFO_CACHE_KEY = "deerflow.yuserInfoByYUserId";
+
 type UserDetailResponse = {
   data?: {
     id?: string;
@@ -34,6 +36,84 @@ function readStoredYUserId(info: Record<string, unknown>): string {
   return value == null ? "" : String(value).trim();
 }
 
+function isPlainObject(value: unknown): value is Record<string, unknown> {
+  return Boolean(value) && typeof value === "object" && !Array.isArray(value);
+}
+
+function isUsableExternalValue(value: unknown): boolean {
+  if (value == null) return false;
+  if (typeof value !== "string") return true;
+  const trimmed = value.trim();
+  if (!trimmed) return false;
+  const lowered = trimmed.toLowerCase();
+  return lowered !== "null" && lowered !== "undefined";
+}
+
+function readYUserInfoCache(): Record<string, Record<string, unknown>> {
+  if (typeof window === "undefined") return {};
+  try {
+    const raw = window.localStorage.getItem(YUSER_INFO_CACHE_KEY);
+    if (!raw) return {};
+    const parsed = JSON.parse(raw);
+    if (!isPlainObject(parsed)) return {};
+    const cache: Record<string, Record<string, unknown>> = {};
+    for (const [key, value] of Object.entries(parsed)) {
+      if (isPlainObject(value)) cache[key] = value;
+    }
+    return cache;
+  } catch {
+    return {};
+  }
+}
+
+function readCachedYUserInfo(yUserId: string): Record<string, unknown> {
+  return readYUserInfoCache()[yUserId] ?? {};
+}
+
+function writeCachedYUserInfo(yUserId: string, info: Record<string, unknown>): void {
+  if (typeof window === "undefined") return;
+  try {
+    const cache = readYUserInfoCache();
+    cache[yUserId] = info;
+    window.localStorage.setItem(YUSER_INFO_CACHE_KEY, JSON.stringify(cache));
+  } catch {
+    /* noop */
+  }
+}
+
+function buildExternalUserInfo(
+  yUserId: string,
+  result: Record<string, unknown>,
+  previous: Record<string, unknown>,
+  cached: Record<string, unknown>,
+): Record<string, unknown> {
+  const next: Record<string, unknown> = { ...cached };
+  for (const [key, value] of Object.entries(result)) {
+    if (isUsableExternalValue(value)) {
+      next[key] = value;
+    }
+  }
+  next.yUserId = yUserId;
+
+  const incomingAccessToken = normalizeExternalAccessToken(result.accessToken);
+  if (incomingAccessToken) {
+    next.accessToken = incomingAccessToken;
+    return next;
+  }
+
+  const previousYUserId = readStoredYUserId(previous);
+  const previousAccessToken =
+    previousYUserId === yUserId ? normalizeExternalAccessToken(previous.accessToken) : "";
+  const cachedAccessToken = normalizeExternalAccessToken(cached.accessToken);
+  const fallbackAccessToken = previousAccessToken || cachedAccessToken;
+  if (fallbackAccessToken) {
+    next.accessToken = fallbackAccessToken;
+  } else {
+    delete next.accessToken;
+  }
+  return next;
+}
+
 /**
  * External login via yUserId + optional token (same flow as web-code Login.tsx):
  * persist tools_token, resolve user via consumer API, store userId/userInfo.
@@ -58,22 +138,10 @@ export async function loginByYUserId(
   // access_token,故登录流程随后会用 persistAccessToken 覆盖 userInfo.accessToken。
   const result = res.data ?? {};
   const previous = readExternalUserInfo();
-  const next: Record<string, unknown> = { ...result, yUserId };
+  const cached = readCachedYUserInfo(yUserId);
-  const incomingAccessToken = normalizeExternalAccessToken(result.accessToken);
+  const next = buildExternalUserInfo(yUserId, result, previous, cached);
-  if (incomingAccessToken) {
-    next.accessToken = incomingAccessToken;
-  } else {
-    const previousAccessToken = normalizeExternalAccessToken(previous.accessToken);
-    const previousYUserId = readStoredYUserId(previous);
-    // Do not let an unstable upstream empty/null token wipe a usable token for
-    // the same external user. Avoid carrying it across different yUserId values.
-    if (previousAccessToken && previousYUserId === yUserId) {
-      next.accessToken = previousAccessToken;
-    } else {
-      delete next.accessToken;
-    }
-  }
   authStorageSet(EXTERNAL_USER_INFO_STORAGE_KEY, JSON.stringify(next));
+  writeCachedYUserInfo(yUserId, next);
 }
 
 export function persistToolsToken(token: string): void {
@@ -93,4 +161,8 @@ export function persistAccessToken(token: string): void {
   const info = readExternalUserInfo();
   info.accessToken = trimmed;
   authStorageSet(EXTERNAL_USER_INFO_STORAGE_KEY, JSON.stringify(info));
+  const yUserId = readStoredYUserId(info);
+  if (yUserId) {
+    writeCachedYUserInfo(yUserId, info);
+  }
 }