diff --git a/client/src/services/pushApi.ts b/client/src/services/pushApi.ts
index 84b1c3c..31bc19a 100644
--- a/client/src/services/pushApi.ts
+++ b/client/src/services/pushApi.ts
@@ -7,10 +7,10 @@ import { httpJson } from '../utils/http';
 import { APP_ENV } from '../constants/env';
 import {
   getDailyReminderSettings,
-  getLastRegisteredPushToken,
+  getLastRegisteredPushPayload,
   getOrCreateClientUserId,
   getUserProfileScoring,
-  setLastRegisteredPushToken,
+  setLastRegisteredPushPayload,
 } from '../storage/appStorage';
 import type { UserProfileScoring } from '../storage/appStorage';
 import { toBackendLocaleFromLanguageTag } from '../i18n/locale';
@@ -170,14 +170,27 @@ export async function ensurePushTokenRegisteredIfPermitted(): Promise<{ ok: bool
   const settings = await Notifications.getPermissionsAsync();
   if (!isSystemNotificationPermissionGranted(settings.status)) return { ok: false, reason: 'permission_not_granted' };
 
+  const clientUserId = await getOrCreateClientUserId();
   const token = await getExpoPushTokenOrThrow();
+  const env = toPushEnv(APP_ENV);
+  const appId = pickAppId();
 
-  // 简单去重：token 未变化则不重复上报（减少网络与日志噪音）
-  const last = await getLastRegisteredPushToken().catch(() => null);
-  if (last && String(last) === String(token)) return { ok: true, reason: 'already_registered' };
+  // 去重规则（更严格）：
+  // - 只有当 token + client_user_id + env + app_id 全都一致时才跳过
+  // - 避免出现“client_user_id 变化但 token 没变，导致后端绑定不更新”的问题
+  const last = await getLastRegisteredPushPayload().catch(() => null);
+  if (
+    last &&
+    last.pushToken === token &&
+    last.clientUserId === clientUserId &&
+    last.env === env &&
+    last.appId === appId
+  ) {
+    return { ok: true, reason: 'already_registered' };
+  }
 
   await registerPushToken({ pushToken: token });
-  await setLastRegisteredPushToken(token);
+  await setLastRegisteredPushPayload({ pushToken: token, clientUserId, env, appId });
   return { ok: true, reason: 'registered' };
 }
 
diff --git a/client/src/storage/appStorage.ts b/client/src/storage/appStorage.ts
index 84f7b2d..ea505da 100644
--- a/client/src/storage/appStorage.ts
+++ b/client/src/storage/appStorage.ts
@@ -18,8 +18,9 @@ const KEY_RECO_FEED_HISTORY = 'reco.feedHistory';
 const KEY_UI_THEME_MODE = 'ui.theme.mode';
 const KEY_UI_THEME_SUIXIN_STATE = 'ui.theme.suixin.state';
 const KEY_DAILY_REMINDER_SETTINGS = 'dailyReminder.settings';
-const KEY_PUSH_LAST_REGISTERED_TOKEN = 'push.lastRegisteredToken';
-const KEY_PUSH_LAST_REGISTERED_AT = 'push.lastRegisteredAt';
+const KEY_PUSH_LAST_REGISTERED_TOKEN = 'push.lastRegisteredToken'; // 旧：仅 token（保留兼容读取）
+const KEY_PUSH_LAST_REGISTERED_AT = 'push.lastRegisteredAt'; // 旧：时间（保留兼容）
+const KEY_PUSH_LAST_REGISTERED_PAYLOAD = 'push.lastRegisteredPayload'; // 新：token+client_user_id+env+app_id
 
 export type PushPromptState = 'enabled' | 'skipped' | 'unknown';
 export type Reaction = 'like' | 'dislike';
@@ -81,6 +82,36 @@ export async function setLastRegisteredPushToken(token: string): Promise<void> {
   await AsyncStorage.setItem(KEY_PUSH_LAST_REGISTERED_AT, new Date().toISOString());
 }
 
+export type LastRegisteredPushPayload = {
+  pushToken: string;
+  clientUserId: string;
+  env: 'dev' | 'prod';
+  appId: string;
+  savedAt: string; // ISO8601
+};
+
+export async function getLastRegisteredPushPayload(): Promise<LastRegisteredPushPayload | null> {
+  const raw = await AsyncStorage.getItem(KEY_PUSH_LAST_REGISTERED_PAYLOAD);
+  if (!raw) return null;
+  try {
+    const obj = JSON.parse(raw) as Partial<LastRegisteredPushPayload>;
+    if (!obj || typeof obj !== 'object') return null;
+    if (!obj.pushToken || !obj.clientUserId || !obj.env || !obj.appId || !obj.savedAt) return null;
+    if (obj.env !== 'dev' && obj.env !== 'prod') return null;
+    return obj as LastRegisteredPushPayload;
+  } catch {
+    return null;
+  }
+}
+
+export async function setLastRegisteredPushPayload(payload: Omit<LastRegisteredPushPayload, 'savedAt'>): Promise<void> {
+  const savedAt = new Date().toISOString();
+  const full: LastRegisteredPushPayload = { ...payload, savedAt };
+  await AsyncStorage.setItem(KEY_PUSH_LAST_REGISTERED_PAYLOAD, JSON.stringify(full));
+  // 同时写入旧 key，便于兼容老逻辑/快速排查
+  await setLastRegisteredPushToken(payload.pushToken);
+}
+
 export type RecoFeedCacheItem = {
   content_id: number;
   text: string;
diff --git a/server/celerybeat-schedule-shm b/server/celerybeat-schedule-shm
new file mode 100644
index 0000000..8247f6c
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diff --git a/server/celerybeat-schedule-wal b/server/celerybeat-schedule-wal
new file mode 100644
index 0000000..ff6a264
Binary files /dev/null and b/server/celerybeat-schedule-wal differ