feat: 完成全部11项优化需求 + 模板必填项标注 + 归档重算个税

- 高优先级: 花名册导入模板必填项标注、性别自动识别、导入结果反馈、证据链Excel导出、身份证搜索修复、试用期区分与转正提醒、薪税批次流程优化
- 中优先级: 专项附加扣除批量导入、文本模板库完善(Word下载/复制/使用说明)、用工体检评分标准说明、考勤页面导入入口
- 所有导入模板表头标注必填项(*后缀)并含示例行
- 导入逻辑统一改用getField兼容*后缀列名
- 批次归档时强制重算所有条目个税和社保,解决多未归档批次并存时累计计算不准问题
- 更新需求梳理文档

frontend/src/pages/Settings.tsx

@@ -1115,16 +1115,50 @@ function InitImport() {
           {result && (
             <div className="px-3 py-2 rounded-md bg-green-50 text-green-700 text-xs space-y-1">
               <div className="font-medium">导入完成</div>
-              <div>员工：{result.employees} 人</div>
-              <div>合同：{result.contracts} 份</div>
-              {result.overtime > 0 && <div>加班记录：{result.overtime} 条</div>}
-              {result.disciplinary > 0 && <div>违纪记录：{result.disciplinary} 条</div>}
-              {result.attendance > 0 && <div>考勤记录：{result.attendance} 条</div>}
+              <div className="flex gap-4">
+                <span>成功导入：员工 {result.employees} 人、合同 {result.contracts} 份</span>
+                {result.overtime > 0 && <span>加班 {result.overtime} 条</span>}
+                {result.disciplinary > 0 && <span>违纪 {result.disciplinary} 条</span>}
+                {result.attendance > 0 && <span>考勤 {result.attendance} 条</span>}
+              </div>
+              {result.skipped > 0 && (
+                <div className="text-amber-600">跳过 {result.skipped} 条（数据不完整或格式错误）</div>
+              )}
+              {result.duplicates > 0 && (
+                <div className="text-amber-600">重复 {result.duplicates} 条（身份证号已存在）</div>
+              )}
               {result.errors?.length > 0 && (
                 <div className="mt-2 pt-2 border-t border-green-200">
-                  <div className="font-medium text-amber-600">部分错误（{result.errors.length}条）：</div>
+                  <div className="font-medium text-amber-600 flex items-center justify-between">
+                    <span>错误详情（{result.errors.length}条）：</span>
+                    <button className="text-xs text-primary hover:underline" onClick={async () => {
+                      try {
+                        const token = useAuthStore.getState().accessToken
+                        const errorList = result.errors.map((e: string, i: number) => {
+                          const detail = result.details?.[i] || {}
+                          return { sheet: detail.sheet || '员工信息', row: detail.row || i + 2, name: detail.name || '', errors: [e] }
+                        })
+                        const res = await fetch('/api/v1/import/excel/error-log', {
+                          method: 'POST',
+                          headers: { 'Content-Type': 'application/json', ...(token ? { Authorization: `Bearer ${token}` } : {}) },
+                          body: JSON.stringify({ errors: errorList }),
+                        })
+                        const blob = await res.blob()
+                        const url = URL.createObjectURL(blob)
+                        const a = document.createElement('a')
+                        a.href = url
+                        a.download = '导入错误日志.xlsx'
+                        a.click()
+                        URL.revokeObjectURL(url)
+                      } catch {
+                        toast.error('导出错误日志失败')
+                      }
+                    }}>
+                      导出错误日志
+                    </button>
+                  </div>
                   {result.errors.slice(0, 10).map((e: string, i: number) => (<div key={i} className="text-amber-600">{e}</div>))}
-                  {result.errors.length > 10 && <div className="text-amber-600">...还有 {result.errors.length - 10} 条</div>}
+                  {result.errors.length > 10 && <div className="text-amber-600">...还有 {result.errors.length - 10} 条，请导出错误日志查看全部</div>}
                 </div>
               )}
             </div>