优化: 大文件拆分+代码分割+按需加载+console清理+any类型替换

- Money.tsx (2260行→54行): 拆分为 money/ 子目录4个组件, React.lazy二级分割
- AIAssistant.tsx (2038行→63行): 拆分为 ai-assistant/ 子目录6个组件, React.lazy二级分割
- xlsx改为动态导入, OvertimeTab从345KB降至12.7KB
- api-services.ts: 请求参数 any→Record<string,unknown>
- 移除前端3处console.log残留
- 后端console替换为pino logger
- 前后端未使用import/变量清理
- Zod schema验证: termination/platform/special-status/work-process
- 新增 leave.routes.ts, acceptance-test.routes.ts
- UI组件: PageGuide, QueryError, Stepper

backend/src/routes/portal.routes.ts

@@ -838,4 +838,64 @@ router.post('/resignation/:id/withdraw', portalAuth, async (req: any, res, next)
   } catch (err) { next(err) }
 })
 
+// ========== 员工端：休假申请 ==========
+// 查看自己的休假申请列表
+router.get('/leaves', portalAuth, async (req: any, res, next) => {
+  try {
+    const { id: employeeId, orgId } = req.employee
+    const list = await prisma.leaveRequest.findMany({
+      where: { employeeId, orgId },
+      orderBy: { createdAt: 'desc' },
+    })
+    res.json({ success: true, data: list })
+  } catch (err) { next(err) }
+})
+
+// 提交休假申请
+router.post('/leaves', portalAuth, async (req: any, res, next) => {
+  try {
+    const { id: employeeId, orgId } = req.employee
+    const { leaveType, startDate, endDate, days, reason } = req.body
+
+    if (!leaveType || !startDate || !endDate) {
+      return res.status(400).json({ success: false, error: { code: 'BAD_REQUEST', message: '缺少必填字段' } })
+    }
+
+    const record = await prisma.leaveRequest.create({
+      data: {
+        orgId,
+        employeeId,
+        leaveType,
+        startDate: new Date(startDate),
+        endDate: new Date(endDate),
+        days: days || 1,
+        reason: reason || null,
+        createdBy: employeeId,
+      },
+    })
+    res.json({ success: true, data: record })
+  } catch (err) { next(err) }
+})
+
+// 撤回休假申请（仅待审批可撤回）
+router.post('/leaves/:id/cancel', portalAuth, async (req: any, res, next) => {
+  try {
+    const { id: employeeId, orgId } = req.employee
+    const record = await prisma.leaveRequest.findFirst({
+      where: { id: req.params.id, employeeId, orgId },
+    })
+    if (!record) {
+      return res.status(404).json({ success: false, error: { code: 'NOT_FOUND', message: '申请不存在' } })
+    }
+    if (record.status !== 'PENDING') {
+      return res.status(400).json({ success: false, error: { code: 'BAD_REQUEST', message: '已处理的申请不可撤回' } })
+    }
+    const updated = await prisma.leaveRequest.update({
+      where: { id: record.id },
+      data: { status: 'CANCELLED' },
+    })
+    res.json({ success: true, data: updated })
+  } catch (err) { next(err) }
+})
+
 export default router