新增二楼大屏接口，以及二楼大屏前端

chenyong

2025-05-22 a46b0171f379cd03149ea1e7d8c204ffd8b980a9

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global using Masuit.Tools;
global using Microsoft.AspNetCore.Builder;
global using Microsoft.AspNetCore.Hosting;
global using Microsoft.Extensions.DependencyInjection;
global using NewLife.Caching;
global using NewLife.Serialization;
global using SimpleRedis;