enhance(user):打通用户登录功能，调整程序基本结构。

router/router.go

@@ -1,6 +1,7 @@
 package router
 
 import (
+	"electricity_bill_calc/controller"
 	"electricity_bill_calc/logger"
 	"electricity_bill_calc/security"
 	"fmt"
@@ -43,6 +44,8 @@ func App() *fiber.App {
 	}))
 	app.Use(security.SessionRecovery)
 
+	controller.InitializeUserHandlers(app)
+
 	return app
 }