feat: 20260815 系统优化 - 全部31项问题修复(P0×6+P1×14+P2×9+P3×2)

P0紧急修复(6项):
- 草稿保存完整恢复所有字段(含socialAvgWage)
- 补偿金批次从compensationBreakdown读取
- 违法解除风险确认UI
- 合同结束日期前后校验(前后端双保险)

P1高优先级(14项):
- 离职日期联动社保/公积金截止月(15号规则)
- 合规检查+工作交接改为软阻断(生成待办)
- 补偿月数(N/N+1/2N/自定义)+计算基数(近12月/合同/自定义)
- 解聘并入花名册操作栏(类型选择跳转向导)
- 合同续签开始日期自动推导(原合同结束日+1天)
- 年龄合规筛查(童工阻断/未成年工/退休警告)
- 编辑入职日期后状态联动(待入职↔在职)
- 转正移植到花名册操作栏+薪资回写
- 男职工无法选择三期

P2体验优化(9项):
- "劳动合同"调整为"用工关系"
- 费用结算新增剩余年假折算(300%日工资)
- 身份证号全域改为"证件号码"(前后端18个文件)
- 手机号查重
- 开具证明+合同续签移植到花名册操作栏
- 批量转正+批量开具证明
- 去掉用工办理模块

P3规划(2项):
- 组织架构+审批流(Department/Position/ApprovalFlow/ApprovalInstance)
- 客服工作台(Ticket/ChatSession+SUPPORT角色)

新增模型: Department/Position/ApprovalFlow/ApprovalInstance/Ticket/TicketMessage/ChatSession/ChatMessage
新增字段: Employee.departmentId/supervisorId
新增角色: SUPPORT

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

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

backend/src/services/work-process.service.ts

@@ -1,7 +1,7 @@
 import prisma from '../lib/prisma'
-import { encrypt } from '../lib/crypto'
+import { encrypt, decrypt } from '../lib/crypto'
 import { createDraft as createTerminationDraft, executeTermination } from './termination.service'
-import { createEmployee, addContract } from './contract.service'
+import { createEmployee, addContract, prevMonth } from './contract.service'
 import { runRiskDetection } from './risk.service'
 
 // 13类流程定义
@@ -69,10 +69,44 @@ export async function executeWorkProcess(processId: string, type: string, formDa
       const { employeeId, regularSalary } = formData
       if (employeeId) {
         if (regularSalary) {
+          const employee = await prisma.employee.findFirst({ where: { id: employeeId, orgId } })
+          const oldSalary = employee ? Number(decrypt(employee.monthlySalary)) || 0 : 0
+          const newSalary = Number(regularSalary) || 0
           await prisma.employee.update({
             where: { id: employeeId },
             data: { monthlySalary: encrypt(String(regularSalary)) },
           })
+          // 记录薪资变更（试用期薪资 → 转正薪资）
+          if (oldSalary !== newSalary) {
+            const now = new Date()
+            const nowMonth = now.toISOString().slice(0, 7)
+            await prisma.salaryChangeRecord.updateMany({
+              where: { employeeId, endMonth: null },
+              data: { endMonth: prevMonth(nowMonth) },
+            })
+            await prisma.salaryChangeRecord.create({
+              data: {
+                orgId,
+                employeeId,
+                oldSalary,
+                newSalary,
+                effectiveDate: now,
+                effectiveMonth: nowMonth,
+                endMonth: null,
+                changeType: 'CONFIRM',
+                reason: '试用期转正薪资调整',
+                createdBy: userId,
+              },
+            })
+          }
+          // 校验转正薪资与最新合同试用期薪资是否一致（提示性校验）
+          const latestContract = await prisma.laborContract.findFirst({
+            where: { employeeId, orgId },
+            orderBy: { createdAt: 'desc' },
+          })
+          if (latestContract?.probationSalary && latestContract.probationSalary !== newSalary) {
+            console.warn(`[CONFIRM] 转正薪资 ¥${newSalary} 与合同试用期薪资 ¥${latestContract.probationSalary} 不一致，员工: ${employeeId}`)
+          }
           await runRiskDetection(orgId)
         }
       }
@@ -275,13 +309,13 @@ ${body}
 
   const templates: Record<string, (data: any, org: string) => string> = {
     INCOME_CERT: (data, org) => wrapHtml('收入证明', `
-<div class="body">兹证明 ${data.employeeName || '___'}（身份证号：${data.idCardNumber || '___'}）系我单位员工，自 ${data.hireDate || '___'} 起在我单位工作，现任 ${data.position || '___'} 职务。</div>
+<div class="body">兹证明 ${data.employeeName || '___'}（证件号码：${data.idCardNumber || '___'}）系我单位员工，自 ${data.hireDate || '___'} 起在我单位工作，现任 ${data.position || '___'} 职务。</div>
 <div class="body">该员工近一年平均月收入为人民币 ${data.monthlyIncome || '___'} 元（税前）。</div>
 <div class="body">本证明仅用于 ${data.purpose || '___'}，不作其他用途。</div>
 <div class="body">特此证明。</div>
 <div class="sign">${org}<br/>${new Date().toLocaleDateString('zh-CN')}</div>`),
     LEAVING_CERT: (data, org) => wrapHtml('离职证明', `
-<div class="body">兹证明 ${data.employeeName || '___'}（身份证号：${data.idCardNumber || '___'}）自 ${data.hireDate || '___'} 至 ${data.leaveDate || '___'} 在我单位工作，最后职务为 ${data.position || '___'}。</div>
+<div class="body">兹证明 ${data.employeeName || '___'}（证件号码：${data.idCardNumber || '___'}）自 ${data.hireDate || '___'} 至 ${data.leaveDate || '___'} 在我单位工作，最后职务为 ${data.position || '___'}。</div>
 <div class="body">该员工已于 ${data.leaveDate || '___'} 与我单位解除劳动关系，双方已办妥交接手续。</div>
 <div class="body">特此证明。</div>
 <div class="sign">${org}<br/>${new Date().toLocaleDateString('zh-CN')}</div>`),