fix:api接口错误

apps/frontend/src/composables/useNotifications.ts

@@ -11,6 +11,10 @@ export interface NotificationStatus {
   ingestEndpoint: string;
 }
 
+// Derive a sensible default ingest endpoint from current API base URL
+const apiBaseUrl = (apiClient.defaults.baseURL as string | undefined) ?? 'http://localhost:4000/api';
+const defaultIngestEndpoint = (apiBaseUrl.endsWith('/') ? apiBaseUrl.slice(0, -1) : apiBaseUrl) + '/transactions/notification';
+
 const initialStatus: NotificationStatus = {
   secretConfigured: false,
   secretHint: null,
@@ -18,7 +22,7 @@ const initialStatus: NotificationStatus = {
   packageWhitelist: [],
   ingestedCount: 0,
   lastNotificationAt: null,
-  ingestEndpoint: 'http://localhost:4000/api/transactions/notification'
+  ingestEndpoint: defaultIngestEndpoint
 };
 
 export function useNotificationStatusQuery() {