feat: 新增VIP过期自动卸载功能

- 新增`AiRechargeManager`类，实现VIP过期用户的自动卸载逻辑。
- 新增`AiHubConst`常量类，统一管理角色名称。
- 在`IRoleService`中添加`RemoveUserRoleByRoleCodeAsync`方法，用于移除指定用户的角色。
- 在`RoleManager`中实现`RemoveUserRoleByRoleCodeAsync`方法。
- 优化`CurrentExtensions`中VIP角色判断逻辑，使用常量替代硬编码。
- 调整`YiAbpWebModule`中部分代码格式，提升可读性。

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Extensions/CurrentExtensions.cs

@@ -1,5 +1,6 @@
 using Microsoft.AspNetCore.Http;
 using Volo.Abp.Users;
+using Yi.Framework.AiHub.Domain.Shared.Consts;
 
 namespace Yi.Framework.AiHub.Domain.Extensions;
 
@@ -7,6 +8,6 @@ public static class CurrentExtensions
 {
     public static bool IsAiVip(this ICurrentUser currentUser)
     {
-        return currentUser.Roles.Contains("YiXinAi-Vip") || currentUser.UserName == "cc";
+        return currentUser.Roles.Contains(AiHubConst.VipRole) || currentUser.UserName == "cc";
     }
 }

Yi.Abp.Net8/module/ai-hub/Yi.Framework.AiHub.Domain/Managers/AiRechargeManager.cs

@@ -0,0 +1,59 @@
+using Microsoft.Extensions.Logging;
+using Volo.Abp.Domain.Services;
+using Yi.Framework.AiHub.Domain.Entities;
+using Yi.Framework.AiHub.Domain.Entities.OpenApi;
+using Yi.Framework.AiHub.Domain.Shared.Consts;
+using Yi.Framework.Rbac.Application.Contracts.IServices;
+using Yi.Framework.SqlSugarCore.Abstractions;
+
+namespace Yi.Framework.AiHub.Domain.Managers;
+
+public class AiRechargeManager : DomainService
+{
+    private readonly ISqlSugarRepository<AiRechargeAggregateRoot> _rechargeRepository;
+    private readonly IRoleService _roleService;
+    private readonly ISqlSugarRepository<TokenAggregateRoot> _tokenRepository;
+    private readonly ILogger<AiRechargeManager> _logger;
+
+    public AiRechargeManager(ISqlSugarRepository<AiRechargeAggregateRoot> rechargeRepository,
+        ISqlSugarRepository<TokenAggregateRoot> tokenRepository, ILogger<AiRechargeManager> logger,
+        IRoleService roleService)
+    {
+        _rechargeRepository = rechargeRepository;
+        _tokenRepository = tokenRepository;
+        _logger = logger;
+        _roleService = roleService;
+    }
+
+    public async Task RemoveVipRoleByExpireAsync()
+    {
+        _logger.LogInformation("开始执行VIP过期自动卸载任务");
+
+        // 获取当前时间
+        var currentTime = DateTime.Now;
+
+        // 查找过期的充值记录
+        var expiredRecharges = await _rechargeRepository._DbQueryable
+            .Where(x => x.ExpireDateTime.HasValue && x.ExpireDateTime.Value < currentTime)
+            .ToListAsync();
+
+        if (!expiredRecharges.Any())
+        {
+            _logger.LogInformation("没有找到过期的VIP用户");
+            return;
+        }
+
+        // 获取过期用户的ID列表
+        var expiredUserIds = expiredRecharges.Select(x => x.UserId).Distinct().ToList();
+        _logger.LogInformation($"找到 {expiredUserIds.Count} 个过期的VIP用户");
+
+        // 获取YiXinAi-Vip角色ID
+        await _roleService.RemoveUserRoleByRoleCodeAsync(expiredUserIds, AiHubConst.VipRole);
+
+        // 删除过期用户的Token密钥
+        var removedTokenCount = await _tokenRepository.DeleteAsync(x => expiredUserIds.Contains(x.UserId));
+
+        _logger.LogInformation($"成功删除 {removedTokenCount} 个用户的Token密钥");
+        _logger.LogInformation($"VIP过期自动卸载任务执行完成，共处理 {expiredUserIds.Count} 个过期用户");
+    }
+}