fix(web): suppress duplicate toasts when auth session expires

Mark 401/refresh-failure errors as handled so per-view catch blocks fall
through silently while a single global "登录已过期" warning is shown.
Centralize ops-web error rendering via showOpsError.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/ops-web/src/main.ts

@@ -38,6 +38,7 @@ import { createApp } from 'vue'
 
 import { bindUnauthorizedHandler } from '@/lib/http'
 import { router } from '@/router'
+import { useAuthStore } from '@/stores/auth'
 import { pinia } from '@/stores/pinia'
 import 'ant-design-vue/dist/reset.css'
 import App from './App.vue'
@@ -55,8 +56,15 @@ const queryClient = new QueryClient({
 
 const app = createApp(App)
 
+message.config({
+  maxCount: 1,
+})
+
 bindUnauthorizedHandler(() => {
+  const auth = useAuthStore(pinia)
+  auth.logout()
   void router.replace({ name: 'login' })
+  message.destroy()
   message.warning('登录已过期，请重新登录')
 })
 ;[