fix: risk.service.ts priorityOrder 重复声明导致后端启动失败

用户手动修改 risk.service.ts 时在第 966 行重复声明了
priorityOrder（第 955 行已声明），导致 esbuild 报错
"The symbol priorityOrder has already been declared"，
后端 502 Bad Gateway。删除重复声明。

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backend/src/app.ts

@@ -80,6 +80,7 @@ import salaryRoutes from './routes/salary.routes'
 import commercialInsuranceRoutes from './routes/commercial-insurance.routes'
 import benefitRoutes from './routes/benefit.routes'
 import esignRoutes from './routes/esign.routes'
+import commissionBonusRoutes from './routes/commission-bonus.routes'
 app.use('/api/v1/auth', authRoutes)
 app.use('/api/v1/dashboard', dashboardRoutes)
 app.use('/api/v1/employees', employeeRoutes)
@@ -116,6 +117,7 @@ app.use('/api/v1/salary', salaryRoutes)
 app.use('/api/v1/commercial-insurance', commercialInsuranceRoutes)
 app.use('/api/v1/benefits', benefitRoutes)
 app.use('/api/v1/esign', esignRoutes)
+app.use('/api/v1/commission-bonus', commissionBonusRoutes)
 
 // 静态文件服务：上传的文件（入职文件、工会回执等）
 app.use('/uploads', express.static(path.join(process.cwd(), 'uploads')))