fix: 修复前后端编译警告 — 移除未使用变量/导入/函数

前端:
- 移除未使用导入: FileText, AlertCircle, RefreshCw, Signal, QrCode, Upload, Save, Bell, History, useMemo, Select
- 移除未使用变量/函数: scope, cfg, org, paged, salaryNum, ackColor, resultColor, maxEmployees, compareVersions, showRenewPreview, showEvidence, handleStartDateChange, ResultRow, previewEmployeeId, updateMutation
- 修复 vite.config.ts: 安装 @types/node 并配置 tsconfig.node.json
- 将未使用参数 req/s 改为 _req/_s

后端:
- 移除未使用导入: Request, Response, NextFunction, decrypt, ContractType, ensureDefaultTemplate
- 移除未使用变量/常量: scope, cfg, org, orgId(preview), monthNum, TAX_BRACKETS, months, daysBetween
- 将未使用参数 req 改为 _req

backend/prisma/seed.ts

@@ -207,7 +207,6 @@ async function main() {
   console.log('\n生成 1-6 月历史工资条...')
   const socialConfig = await prisma.socialInsuranceConfig.findFirst({ where: { orgId: org.id, isCurrent: true } })
   const allEmployees = await prisma.employee.findMany({ where: { orgId: org.id } })
-  const months = ['2026-01', '2026-02', '2026-03', '2026-04', '2026-05', '2026-06']
 
   for (const emp of allEmployees) {
     // 跳过 2026 年之后入职的员工

backend/src/routes/ai.routes.ts

@@ -188,7 +188,6 @@ router.post('/case-to-todo', authMiddleware, async (req: AuthRequest, res, next)
 
 router.get('/predict', authMiddleware, async (req: AuthRequest, res, next) => {
   try {
-    const scope = (req.query.scope as string) || 'all'
     const department = req.query.department as string
     const employeeId = req.query.employeeId as string
     const riskType = req.query.riskType as string
@@ -339,7 +338,7 @@ router.get('/review/employee/:employeeId', authMiddleware, async (req: AuthReque
 })
 
 // RAG 知识库管理
-router.post('/rag/seed', authMiddleware, async (req: AuthRequest, res, next) => {
+router.post('/rag/seed', authMiddleware, async (_req: AuthRequest, res, next) => {
   try {
     await seedKnowledgeBase()
     res.json({ success: true, data: { message: '知识库初始化完成' } })

backend/src/routes/import.routes.ts

@@ -88,7 +88,6 @@ function num(v: any): number {
 router.post('/excel/preview', authMiddleware, upload.single('file'), async (req: AuthRequest, res: Response, next) => {
   try {
     if (!req.file) return res.status(400).json({ success: false, error: { code: 'BAD_REQUEST', message: '请上传文件' } })
-    const orgId = req.user!.orgId
 
     const wb = XLSX.read(req.file.buffer, { type: 'buffer', cellDates: true })
     const preview: any = { employees: [], contracts: [], overtime: [], disciplinary: [], attendance: [], errors: [] as any[] }
@@ -385,7 +384,7 @@ router.post('/excel', authMiddleware, upload.single('file'), async (req: AuthReq
   }
 })
 
-router.get('/template', authMiddleware, async (req: AuthRequest, res: Response) => {
+router.get('/template', authMiddleware, async (_req: AuthRequest, res: Response) => {
   const wb = XLSX.utils.book_new()
 
   const empData = [
@@ -582,7 +581,7 @@ router.post('/monthly', authMiddleware, upload.single('file'), async (req: AuthR
   }
 })
 
-router.get('/monthly-template', authMiddleware, async (req: AuthRequest, res: Response) => {
+router.get('/monthly-template', authMiddleware, async (_req: AuthRequest, res: Response) => {
   const wb = XLSX.utils.book_new()
 
   const attData = [{ '姓名': '张三', '身份证号': '110101199001011234', '日期': '2024-06-01', '考勤状态': '正常', '上班时间': '09:00', '下班时间': '18:00', '备注': '' }]

backend/src/routes/payroll.routes.ts

@@ -427,7 +427,6 @@ router.post('/overtime/import-to-batch/:batchId', async (req: AuthRequest, res:
     // 获取加班费计算规则
     let config = await prisma.overtimeConfig.findUnique({ where: { orgId } })
     if (!config) config = await prisma.overtimeConfig.create({ data: { orgId } })
-    const cfg = config
 
     // 获取该月未关联批次的加班记录
     const overtimeRecords = await prisma.overtimeRecord.findMany({

backend/src/routes/payroll2.routes.ts

@@ -4,7 +4,6 @@ import { authMiddleware, AuthRequest } from '../middleware/auth'
 import { z } from 'zod'
 import { decrypt } from '../lib/crypto'
 import {
-  ensureDefaultTemplate,
   getTemplate,
   calcBatchEntry,
   getPayrollRiskWarnings,
@@ -228,9 +227,6 @@ router.post('/batches', async (req: AuthRequest, res: Response, next: NextFuncti
     })
     const batchNo = existingBatches + 1
 
-    // 获取组织发薪频率
-    const org = await prisma.organization.findUnique({ where: { id: orgId } })
-
     // 获取在职员工 + 本月离职员工
     const monthStart = new Date(`${month}-01`)
     const monthEnd = new Date(monthStart.getFullYear(), monthStart.getMonth() + 1, 0, 23, 59, 59)

backend/src/routes/roster.routes.ts

@@ -1,4 +1,4 @@
-import { Router, Request, Response, NextFunction } from 'express'
+import { Router } from 'express'
 import { authMiddleware, AuthRequest } from '../middleware/auth'
 import { auditLog } from '../middleware/auditLog'
 import prisma from '../lib/prisma'

backend/src/routes/settings.routes.ts

@@ -1,4 +1,4 @@
-import { Router, Request, Response, NextFunction } from 'express'
+import { Router } from 'express'
 import bcrypt from 'bcryptjs'
 import prisma from '../lib/prisma'
 import { authMiddleware, AuthRequest } from '../middleware/auth'

backend/src/routes/termination.routes.ts

@@ -4,7 +4,6 @@ import { auditLog } from '../middleware/auditLog'
 import { terminationChecklistSchema } from '../schemas/termination.schema'
 import { createTermination, createResignation, revokeTermination, getTerminations, getChecklistForReason, assessRisk, batchTerminatePreview, batchTerminate } from '../services/termination.service'
 import prisma from '../lib/prisma'
-import { decrypt } from '../lib/crypto'
 
 const router = Router()
 

backend/src/services/payroll.service.ts

@@ -1,5 +1,4 @@
 import prisma from '../lib/prisma'
-import { decrypt } from '../lib/crypto'
 
 // ========== 薪酬模版 ==========
 
@@ -51,16 +50,6 @@ export function calcHousingFund(base: number, config: any) {
 
 // ========== 累计预扣个税 ==========
 
-const TAX_BRACKETS = [
-  { rate: 0.03, quickDeduction: 0 },
-  { rate: 0.10, quickDeduction: 2520 },
-  { rate: 0.20, quickDeduction: 16920 },
-  { rate: 0.25, quickDeduction: 31920 },
-  { rate: 0.30, quickDeduction: 52920 },
-  { rate: 0.35, quickDeduction: 85920 },
-  { rate: 0.45, quickDeduction: 181920 },
-]
-
 export function calcTax(taxableIncome: number): number {
   if (taxableIncome <= 0) return 0
   let tax = 0
@@ -291,7 +280,6 @@ export async function generatePayslipFromBatches(orgId: string, month: string) {
 
   // 计算累计数据
   const year = month.slice(0, 4)
-  const monthNum = Number(month.slice(5, 7))
 
   let generated = 0
   for (const [employeeId, summary] of employeeMap) {

backend/src/services/risk.service.ts

@@ -1,6 +1,5 @@
 import prisma from '../lib/prisma'
-import { decrypt } from '../lib/crypto'
-import type { ContractType, RiskLevel, RiskType } from '@prisma/client'
+import type { RiskLevel, RiskType } from '@prisma/client'
 
 function daysBetween(a: Date, b: Date): number {
   return Math.floor((a.getTime() - b.getTime()) / (1000 * 60 * 60 * 24))

backend/src/services/termination.service.ts

@@ -1,11 +1,6 @@
 import prisma from '../lib/prisma'
-import { decrypt } from '../lib/crypto'
 import { RiskAssessment, TerminationReason } from '@prisma/client'
 
-function daysBetween(a: Date, b: Date): number {
-  return Math.floor((a.getTime() - b.getTime()) / (1000 * 60 * 60 * 24))
-}
-
 function dateToMonth(date: Date): string {
   const y = date.getFullYear()
   const m = String(date.getMonth() + 1).padStart(2, '0')