fix: RiskRules+SitePages数组迭代空值保护

web/src/views/SitePages.vue

@@ -85,7 +85,8 @@ watch(editorMode, (m) => {
 const fmt = (t) => t ? (t.substring(0,19)||'').replace('T',' ') : '-'
 
 const merged = computed(() => {
-  return sites.value.map(s => ({
+  const list = Array.isArray(sites.value) ? sites.value : []
+  return list.map(s => ({
     siteId: s.siteId,
     names: s.names,
     version: pagesMap.value[s.siteId]?.version || null,