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/views/AuditLogsView.vue

@@ -78,7 +78,8 @@ import { message } from 'ant-design-vue'
 import dayjs, { type Dayjs } from 'dayjs'
 import { computed, onMounted, reactive, ref, watch } from 'vue'
 
-import { OpsApiError, http } from '@/lib/http'
+import { showOpsError } from '@/lib/errors'
+import { http } from '@/lib/http'
 
 interface AuditRow {
   id: number
@@ -161,7 +162,7 @@ async function reload() {
     rows.value = result.items
     total.value = result.total
   } catch (error) {
-    if (error instanceof OpsApiError) message.error(error.detail || error.message)
+    showOpsError(error)
   } finally {
     loading.value = false
   }