feat: 节假日配置、排班管理独立页面、考勤加班显示优化

- 新增 HolidayConfig 模型，支持法定节假日和调休工作日配置
- 加班费同步逻辑改用 HolidayConfig 判断日期类型
- 员工端考勤显示加班工时、费率和日期类型
- 周末/节假日出勤状态显示为"周末出勤"/"节假日出勤"
- 新增 Employee.defaultShiftId 字段，支持长期排班（工作日班次）
- 排班管理拆分为独立页面（班次管理+排班），考勤管理保留出勤相关功能
- 排班和每日出勤页面增加身份证号列
- 修复岗位和部门编辑失败问题（POST 改 PUT）
- 新增 backfill 脚本：合同薪资回填、默认班次回填

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

backend/src/routes/portal.routes.ts

@@ -257,7 +257,24 @@ router.get('/contract', portalAuth, async (req: any, res, next) => {
     if (!contract) {
       return res.json({ success: true, data: null })
     }
-    res.json({ success: true, data: contract })
+    // 补充员工工资结构（合同中 baseSalary/performanceSalary 为 0 时作为 fallback）
+    const employee = await prisma.employee.findFirst({
+      where: { id: req.employee.id },
+      select: { monthlySalary: true, baseSalary: true, performanceSalary: true },
+    })
+    const empBase = employee?.baseSalary ? Number(decrypt(employee.baseSalary)) || 0 : 0
+    const empPerf = employee?.performanceSalary ? Number(decrypt(employee.performanceSalary)) || 0 : 0
+    const empMonthly = employee?.monthlySalary ? Number(decrypt(employee.monthlySalary)) || 0 : 0
+    res.json({
+      success: true,
+      data: {
+        ...contract,
+        // 合同中工资为 0 时用员工档案的工资补齐
+        baseSalary: contract.baseSalary || empBase,
+        performanceSalary: contract.performanceSalary || empPerf,
+        monthlySalary: empMonthly,
+      },
+    })
   } catch (err) {
     next(err)
   }
@@ -730,7 +747,54 @@ router.get('/attendance', portalAuth, async (req: any, res, next) => {
       },
       orderBy: { date: 'asc' },
     })
-    res.json({ success: true, data: { published: true, records, title: publish.title } })
+
+    // 查询节假日配置，判断每日日期类型和加班费率
+    const holidays = await prisma.holidayConfig.findMany({
+      where: { orgId: req.employee.orgId, date: { gte: startDate, lt: endDate } },
+    })
+    const holidayMap = new Map<string, string>() // dateStr -> type
+    for (const h of holidays) {
+      holidayMap.set(h.date.toISOString().slice(0, 10), h.type)
+    }
+
+    // 获取加班费配置
+    const otConfig = await prisma.overtimeConfig.findUnique({ where: { orgId: req.employee.orgId } })
+    const rates = {
+      weekday: otConfig?.weekdayRate ?? 1.5,
+      weekend: otConfig?.weekendRate ?? 2.0,
+      holiday: otConfig?.holidayRate ?? 3.0,
+    }
+
+    // 为每条记录附加日期类型和加班费率
+    const enrichedRecords = records.map(r => {
+      const dateStr = r.date.toISOString().slice(0, 10)
+      const day = new Date(dateStr + 'T00:00:00')
+      const dayOfWeek = day.getDay()
+      const holidayType = holidayMap.get(dateStr)
+
+      let dateType: 'weekday' | 'weekend' | 'holiday' = 'weekday'
+      let overtimeRate = rates.weekday
+
+      if (holidayType === 'HOLIDAY') {
+        dateType = 'holiday'
+        overtimeRate = rates.holiday
+      } else if (holidayType === 'WORKDAY') {
+        dateType = 'weekday'
+        overtimeRate = rates.weekday
+      } else if (dayOfWeek === 0 || dayOfWeek === 6) {
+        dateType = 'weekend'
+        overtimeRate = rates.weekend
+      }
+
+      return {
+        ...r,
+        dateType,
+        overtimeRate,
+        hasOvertime: (r.overtimeHours || 0) > 0,
+      }
+    })
+
+    res.json({ success: true, data: { published: true, records: enrichedRecords, title: publish.title, overtimeRates: rates } })
   } catch (err) {
     next(err)
   }