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/stores/auth.ts

@@ -1,7 +1,7 @@
 import { defineStore } from 'pinia'
 import { computed, ref } from 'vue'
 
-import { http } from '@/lib/http'
+import { http, resetUnauthorizedHandling } from '@/lib/http'
 import {
   type OperatorView,
   clearStoredSession,
@@ -47,6 +47,7 @@ export const useAuthStore = defineStore('ops-auth', () => {
         password: payload.password,
       })
       .then((result) => {
+        resetUnauthorizedHandling()
         accessToken.value = result.access_token
         expiresAt.value = result.expires_at
         operator.value = result.operator