feat: 统一页面布局与字体样式

backend/src/app.ts

@@ -9,7 +9,15 @@ import { apiLimiter } from './middleware/rateLimit'
 const app = express()
 
 app.use(helmet())
-app.use(compression())
+app.use(compression({
+  filter: (req, res) => {
+    // SSE 流式响应不压缩，避免缓冲导致前端一次性收到所有数据
+    if (req.headers['accept'] === 'text/event-stream' || res.getHeader('Content-Type') === 'text/event-stream') {
+      return false
+    }
+    return compression.filter(req, res)
+  },
+}))
 app.use(
   cors({
     origin: process.env.CORS_ORIGIN || 'http://localhost:5173',

backend/src/index.ts

@@ -1,7 +1,7 @@
 import app from './app'
 
-const PORT = process.env.PORT || 3000
+const PORT = Number(process.env.PORT) || 3000
 
-app.listen(PORT, () => {
-  console.log(`Server running on http://localhost:${PORT}`)
+app.listen(PORT, '::', () => {
+  console.log(`Server running on http://[::]:${PORT}`)
 })

backend/src/routes/ai.routes.ts

@@ -109,12 +109,18 @@ router.post('/chat-stream', authMiddleware, async (req: AuthRequest, res, next)
     res.setHeader('Content-Type', 'text/event-stream')
     res.setHeader('Cache-Control', 'no-cache')
     res.setHeader('Connection', 'keep-alive')
+    res.setHeader('X-Accel-Buffering', 'no')
+    res.flushHeaders()
     let usageRecorded = false
     try {
       for await (const delta of chatStream(messages, orgContext)) {
         res.write(`data: ${JSON.stringify({ delta })}\n\n`)
+        if (typeof (res as any).flush === 'function') (res as any).flush()
       }
       res.write('data: [DONE]\n\n')
+    } catch (streamErr: any) {
+      res.write(`data: ${JSON.stringify({ error: streamErr.message || 'AI 服务异常' })}\n\n`)
+      res.write('data: [DONE]\n\n')
     } finally {
       if (!usageRecorded) {
         await recordUsage(req.user!.orgId, req.user!.id, 'chat')

backend/src/routes/roster.routes.ts

@@ -205,7 +205,7 @@ router.get('/:id/evidence-chain', authMiddleware, async (req: AuthRequest, res,
     employee.contracts.forEach((c) => {
       evidence.push({
         category: '劳动关系',
-        title: `劳动合同（${c.contractType === 'FIXED' ? '固定期限' : c.contractType === 'UNFIXED' ? '无固定期限' : '未签订'}）`,
+        title: `合同（${({ FIXED: '固定期限', UNFIXED: '无固定期限', LABOR: '劳务协议', INTERNSHIP: '实习协议', UNSIGNED: '未签订' } as Record<string, string>)[c.contractType] || '未签订'}）`,
         date: c.signDate ? c.signDate.toISOString().slice(0, 10) : c.startDate.toISOString().slice(0, 10),
         description: `合同期限：${c.startDate.toISOString().slice(0, 10)} 至 ${c.endDate ? c.endDate.toISOString().slice(0, 10) : '无固定期限'}，试用期${c.probationMonths}个月，试用期工资¥${c.probationSalary}。`,
         evidenceType: 'CONTRACT',
@@ -788,4 +788,16 @@ router.get('/contracts/expiring', authMiddleware, async (req: AuthRequest, res,
   } catch (err) { next(err) }
 })
 
+// 合同类型列表（供前端动态获取）
+router.get('/contract-types', authMiddleware, (_req: AuthRequest, res) => {
+  const types = [
+    { value: 'FIXED', label: '劳动合同-固定期', hasEndDate: true },
+    { value: 'UNFIXED', label: '劳动合同-无固定期', hasEndDate: false },
+    { value: 'LABOR', label: '劳务协议', hasEndDate: false },
+    { value: 'INTERNSHIP', label: '实习协议', hasEndDate: false },
+    { value: 'UNSIGNED', label: '未签合同', hasEndDate: false },
+  ]
+  res.json({ success: true, data: types })
+})
+
 export default router

backend/src/services/contract.service.ts

@@ -26,7 +26,14 @@ export function getContractStatus(contract: {
   hireDate: Date
 }): { status: string; statusText: string; riskLevel: 'high' | 'medium' | 'low' | 'safe' } {
   const today = new Date()
-  const typeLabel = contract.contractType === 'FIXED' ? '固定期限' : contract.contractType === 'UNFIXED' ? '无固定期限' : ''
+  const typeLabelMap: Record<string, string> = {
+    FIXED: '固定期限',
+    UNFIXED: '无固定期限',
+    LABOR: '劳务协议',
+    INTERNSHIP: '实习协议',
+    UNSIGNED: '',
+  }
+  const typeLabel = typeLabelMap[contract.contractType] || ''
 
   if (!contract.signDate || contract.contractType === 'UNSIGNED') {
     const days = daysBetween(today, contract.hireDate)