feat: 20260805 系统优化 - 身份证复制fallback/薪税日期筛选/社保版本修复/证据链导出/违纪证明/医疗期政策/绩效类型评级/合同作废/帮助更新

frontend/src/pages/SocialInsurance.tsx

@@ -188,6 +188,10 @@ export default function SocialInsurance() {
       setShowNewVersion(false)
       toast.success('新版本已创建，旧版本已自动归档')
     },
+    onError: (err: any) => {
+      const msg = err?.response?.data?.message || err?.message || '创建失败'
+      toast.error(msg)
+    },
   })
 
   const createHousingVersionMutation = useMutation({
@@ -198,6 +202,10 @@ export default function SocialInsurance() {
       setShowNewVersion(false)
       toast.success('公积金新版本已创建，旧版本已自动归档')
     },
+    onError: (err: any) => {
+      const msg = err?.response?.data?.message || err?.message || '创建失败'
+      toast.error(msg)
+    },
   })
 
   const aiSuggestMut = useMutation<any, any, { city: string; effectiveFrom: string; type: 'social' | 'housing' }>({