fix: 禁用调试控制台并修复图片错误处理

禁用调试控制台以提高生产环境安全性，移除图片错误处理中的默认占位符以简化逻辑，同时清理路由守卫中未使用的变量

@@ -11,7 +11,7 @@ VITE_PROXY_PREFIX = /srv/
 VITE_OUTDIR = mlaj
 
 # 是否开启调试
-VITE_CONSOLE = 1
+VITE_CONSOLE = 0
 
 # appID相关
 VITE_APPID=微信appID

 /*
  * @Date: 2025-03-20 20:36:36
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-03-26 12:34:44
+ * @LastEditTime: 2025-03-26 13:50:07
  * @FilePath: /mlaj/src/router/guards.js
  * @Description: 路由守卫逻辑
  */
 import { getAuthInfoAPI } from '@/api/auth'
 import { wxInfo } from "@/utils/tools"
-import { useRoute } from 'vue-router'
 
-const $route = useRoute();
 // 需要登录才能访问的路由
 export const authRequiredRoutes = [
   {

@@ -324,7 +324,7 @@ const curriculumItems = [
 
 // Handle image error
 const handleImageError = (e) => {
-  e.target.src = 'https://via.placeholder.com/150?text=Teacher'
+  e.target.src = ''
 }
 
 // Right content component