feat: 新增微信公众号扫码注册功能及幂等处理

- 新增 `FuwuhaoConst` 常量类，统一缓存 Key 前缀管理
- `FuwuhaoOptions` 增加 FromUser、RedirectUri、PicUrl 配置项
- `FuwuhaoManager` 新增 `BuildRegisterMessage` 方法，构建注册引导图文消息
- `FuwuhaoService`
  - 增加 OpenId 与 Scene 绑定缓存，支持扫码注册有效期管理
  - 回调处理支持注册场景，返回图文消息引导用户注册
  - 新增注册接口 `RegisterByCodeAsync`，根据微信授权信息自动注册账号并更新场景状态
- `AccountManager` 注册方法增加分布式锁，防止重复注册，并校验用户名唯一性

Yi.Abp.Net8/module/rbac/Yi.Framework.Rbac.Domain/Managers/AccountManager.cs

@@ -2,6 +2,7 @@
 using System.Security.Claims;
 using System.Text;
 using Mapster;
+using Medallion.Threading;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Options;
 using Microsoft.IdentityModel.Tokens;
@@ -36,6 +37,13 @@ namespace Yi.Framework.Rbac.Domain.Managers
         private UserManager _userManager;
         private ISqlSugarRepository<RoleAggregateRoot> _roleRepository;
         private RefreshJwtOptions _refreshJwtOptions;
+        /// <summary>
+        /// 缓存前缀
+        /// </summary>
+        private string CacheKeyPrefix => LazyServiceProvider.LazyGetRequiredService<IOptions<AbpDistributedCacheOptions>>()
+            .Value.KeyPrefix;
+        public IDistributedLockProvider DistributedLock =>
+            LazyServiceProvider.LazyGetService<IDistributedLockProvider>();
 
         public AccountManager(IUserRepository repository
             , IOptions<JwtOptions> jwtOptions
@@ -288,17 +296,32 @@ namespace Yi.Framework.Rbac.Domain.Managers
         /// <param name="icon"></param>
         /// <returns></returns>
         public async Task<Guid> RegisterAsync(string userName, string password, long? phone, string? email,
-            string? nick,string? icon)
+            string? nick, string? icon)
         {
-            if (phone is null && string.IsNullOrWhiteSpace(email))
+            if (userName is null)
             {
-                throw new UserFriendlyException("注册时，电话与邮箱不能同时为空");
+                throw new UserFriendlyException("注册时，用户名不能为空");
             }
 
-            var user = new UserAggregateRoot(userName, password, phone, email, nick);
-            var userId = await _userManager.CreateAsync(user);
-            await _userManager.SetDefautRoleAsync(user.Id);
-            return userId;
+            //制作幂等
+            await using (var handle = await DistributedLock.TryAcquireLockAsync($"{CacheKeyPrefix}Register:Lock:{userName}", TimeSpan.FromSeconds(60)))
+            {
+                if (handle is null)
+                {
+                    throw new UserFriendlyException($"{userName}用户正在注册中，请稍等");
+                }
+
+                var userUpName = userName.ToUpper();
+                if (await _userManager._repository._DbQueryable.Where(x => x.UserName.ToUpper() == userUpName).AnyAsync())
+                {
+                    throw new UserFriendlyException($"{userName}用户已注册");
+                }
+                
+                var user = new UserAggregateRoot(userName, password, phone, email, nick);
+                var userId = await _userManager.CreateAsync(user);
+                await _userManager.SetDefautRoleAsync(user.Id);
+                return userId;
+            }
         }
     }
 }