feat: 实现安全存储和批量导入功能增强

refactor(前端): 重构认证和存储逻辑使用secureStorage
feat(前端): 添加安全存储工具和日志工具
feat(前端): 增强批量导入功能支持服务器和交换机设备
fix(后端): 改进设备端口和网卡批量导入接口
docs: 更新导入模板和操作说明

.gitignore

@@ -38,14 +38,20 @@ lerna-debug.log*
 *.db
 *.sqlite
 
-# Temporary files
-*.tmp
-*.temp
-
 # Backup files (generated by maintenance scripts)
 backend/backups/
 *.backup.json
 
+# Uploads directory (user-uploaded files)
+backend/uploads/*
+!backend/uploads/.gitkeep
+
+# Temporary files
+backend/temp/*
+!backend/temp/.gitkeep
+*.tmp
+*.temp
+
 #数据文件
 *.xlsx
 *.csv