feat: 工作日历/考勤管理重构/AI人力报告/工作台员工分布/筛选优化/导入导出增强

- 新增工作日历页面（月历视图、事件管理、自定义事件）
- 考勤管理重构为6 Tab模块（班次/排班/每日出勤/月度报表/休假记录）
- AI顾问新增人力报告Tab，支持流式生成+Word导出
- 工作台总览新增员工分布统计（性别/年龄/学历/司龄饼图）+部门成本拆分
- 花名册/合同/解聘补偿新增部门和状态筛选
- 薪税管理新增工资表导入模板下载、银行代发CSV导出
- 社保公积金支持多公积金账户类型显示
- 数据导出新增花名册/解聘记录导出，中文文件名编码修复
- 数据导入新增模板下载（员工/增减员/工资表）+错误日志导出
- 移除工作台日历卡片（已迁移至独立工作日历页面）
- 新增20260728/20260729更新测试指导文档

frontend/src/pages/roster/BasicInfo.tsx

@@ -76,6 +76,7 @@ export default function BasicInfo({ profile, employeeId, attachments }: { profil
     housingFundBase: profile.housingFundBase ?? '',
     specialDeduction: profile.specialDeduction ?? 0,
     city: profile.city || '',
+    education: profile.education || '',
     cityChangeReason: '',
   })
 
@@ -112,6 +113,7 @@ export default function BasicInfo({ profile, employeeId, attachments }: { profil
       housingFundBase: form.housingFundBase === '' ? null : Number(form.housingFundBase),
       specialDeduction: Number(form.specialDeduction) || 0,
       city: form.city || undefined,
+      education: form.education || undefined,
       cityChangeReason: form.city !== profile.city ? form.cityChangeReason || undefined : undefined,
     }
     updateMutation.mutate(data)
@@ -126,6 +128,7 @@ export default function BasicInfo({ profile, employeeId, attachments }: { profil
       : []),
     { label: '身份证号', value: profile.idCardNumber || '未填写' },
     { label: '手机号', value: profile.phone || '未填写' },
+    { label: '学历', value: profile.education || '未填写' },
     { label: '入职日期', value: profile.hireDate?.toString().slice(0, 10) },
     { label: '状态', value: profile.status === 'ACTIVE' ? '在职' : '离职' },
     ...(profile.retirementDaysLeft != null
@@ -221,6 +224,7 @@ export default function BasicInfo({ profile, employeeId, attachments }: { profil
             <div><Label>女性岗位类型</Label><Select value={form.femaleWorkerType} onChange={(e) => setForm({ ...form, femaleWorkerType: e.target.value as '' | 'CADRE' | 'WORKER' })}><option value="">未选择</option><option value="CADRE">干部/管理岗</option><option value="WORKER">工人/操作岗</option></Select></div>
           )}
           <div><Label>手机号</Label><Input value={form.phone} onChange={(e) => setForm({ ...form, phone: e.target.value })} placeholder="选填" maxLength={11} /></div>
+          <div><Label>学历</Label><Select value={form.education} onChange={(e) => setForm({ ...form, education: e.target.value })}><option value="">未选择</option><option value="博士">博士</option><option value="硕士">硕士</option><option value="本科">本科</option><option value="大专">大专</option><option value="高中">高中</option><option value="其他">其他</option></Select></div>
           <div><Label>入职日期</Label><Input type="date" value={form.hireDate} onChange={(e) => setForm({ ...form, hireDate: e.target.value })} /></div>
           <div><Label>月工资</Label><Input type="number" value={form.monthlySalary} onChange={(e) => setForm({ ...form, monthlySalary: Number(e.target.value) })} /></div>
           <div><Label>紧急联系人</Label><Input value={form.emergencyContact} onChange={(e) => setForm({ ...form, emergencyContact: e.target.value })} placeholder="选填" /></div>

frontend/src/pages/roster/modals.tsx

@@ -517,7 +517,7 @@ export function AddEmployeeModal({ onClose, onSubmit, loading, error }: {
   const [form, setForm] = useState({
     name: '', department: '', hireDate: todayStr, monthlySalary: '',
     idCardNumber: '', gender: '男' as '男' | '女', femaleWorkerType: '' as '' | 'CADRE' | 'WORKER', phone: '',
-    city: '北京',
+    city: '北京', education: '',
     contractType: 'FIXED' as 'FIXED' | 'UNFIXED' | 'UNSIGNED',
     signDate: '', startDate: todayStr, endDate: defaultEndDate,
     contractYears: 3, probationMonths: 0, probationSalary: 0,
@@ -619,6 +619,7 @@ export function AddEmployeeModal({ onClose, onSubmit, loading, error }: {
       femaleWorkerType: form.gender === '女' && form.femaleWorkerType ? form.femaleWorkerType : undefined,
       idCardNumber: form.idCardNumber || undefined,
       phone: form.phone || undefined,
+      education: form.education || undefined,
       socialInsBase: form.socialInsBase ? parseFloat(form.socialInsBase) : undefined,
       socialInsStartMonth: form.socialInsStartMonth || undefined,
       housingFundBase: form.housingFundBase ? parseFloat(form.housingFundBase) : undefined,
@@ -669,6 +670,7 @@ export function AddEmployeeModal({ onClose, onSubmit, loading, error }: {
         </div>
         <div className="grid grid-cols-4 gap-4">
           <div><Label>参保城市</Label><Select value={form.city} onChange={(e) => setForm({ ...form, city: e.target.value })}>{cities.map((c) => <option key={c} value={c}>{c}</option>)}</Select></div>
+          <div><Label>学历</Label><Select value={form.education} onChange={(e) => setForm({ ...form, education: e.target.value })}><option value="">未选择</option><option value="博士">博士</option><option value="硕士">硕士</option><option value="本科">本科</option><option value="大专">大专</option><option value="高中">高中</option><option value="其他">其他</option></Select></div>
         </div>
         {/* 社保公积金 */}
         <div className="border-t border-gray-200 pt-4">