feat: 租户创建时自动创建商户和证照记录

- 扩展 MerchantDocumentType 枚举，新增法人身份证、卫生许可证等类型
- 新增 TenantCreatedEvent 领域事件
- 修改 CreateTenantManuallyCommandHandler 发布租户创建事件
- 新增 TenantCreatedEventConsumer 消费者，自动创建商户和证照
- 实现 Tenant 1:1 Merchant 的业务关系

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/Application/TakeoutSaaS.Application/App/Tenants/Handlers/CreateTenantManuallyCommandHandler.cs

@@ -4,6 +4,7 @@ using Microsoft.Extensions.Logging;
 using TakeoutSaaS.Application.App.Tenants.Commands;
 using TakeoutSaaS.Application.App.Tenants.Contracts;
 using TakeoutSaaS.Application.App.Tenants.Queries;
+using TakeoutSaaS.Application.Messaging.Abstractions;
 using TakeoutSaaS.Domain.Billings.Entities;
 using TakeoutSaaS.Domain.Billings.Enums;
 using TakeoutSaaS.Domain.Identity.Entities;
@@ -11,6 +12,7 @@ using TakeoutSaaS.Domain.Identity.Enums;
 using TakeoutSaaS.Domain.Identity.Repositories;
 using TakeoutSaaS.Domain.Tenants.Entities;
 using TakeoutSaaS.Domain.Tenants.Enums;
+using TakeoutSaaS.Domain.Tenants.Events;
 using TakeoutSaaS.Domain.Tenants.Repositories;
 using TakeoutSaaS.Shared.Abstractions.Constants;
 using TakeoutSaaS.Shared.Abstractions.Exceptions;
@@ -38,6 +40,7 @@ public sealed class CreateTenantManuallyCommandHandler(
     ICurrentUserAccessor currentUserAccessor,
     IIdGenerator idGenerator,
     IMediator mediator,
+    IEventPublisher eventPublisher,
     ILogger<CreateTenantManuallyCommandHandler> logger)
     : IRequestHandler<CreateTenantManuallyCommand, TenantDetailDto>
 {
@@ -224,6 +227,34 @@ public sealed class CreateTenantManuallyCommandHandler(
             // 19. 【Saga 步骤 2】在 App 库创建租户、订阅、认证资料、配额使用记录、账单、支付记录（使用事务）
             await tenantRepository.CreateTenantWithRelatedDataAsync(tenant, subscription, verification, quotaUsages, billing, payment, cancellationToken);
             logger.LogInformation("租户 {TenantId} 及相关数据创建成功，跳过审核：{IsSkipApproval}", tenantId, request.IsSkipApproval);
+
+            // 20. 发布租户创建完成事件（用于自动创建商户和证照）
+            var tenantCreatedEvent = new TenantCreatedEvent
+            {
+                TenantId = tenantId,
+                Code = code,
+                Name = name,
+                ShortName = request.ShortName?.Trim(),
+                LegalEntityName = request.LegalEntityName?.Trim(),
+                LogoUrl = request.LogoUrl?.Trim(),
+                Province = request.Province?.Trim(),
+                City = request.City?.Trim(),
+                Address = request.Address?.Trim(),
+                ContactName = request.ContactName?.Trim(),
+                ContactPhone = request.ContactPhone?.Trim(),
+                ContactEmail = request.ContactEmail?.Trim(),
+                BusinessLicenseNumber = request.BusinessLicenseNumber?.Trim(),
+                BusinessLicenseUrl = request.BusinessLicenseUrl?.Trim(),
+                LegalPersonName = request.LegalPersonName?.Trim(),
+                LegalPersonIdNumber = request.LegalPersonIdNumber?.Trim(),
+                LegalPersonIdFrontUrl = request.LegalPersonIdFrontUrl?.Trim(),
+                LegalPersonIdBackUrl = request.LegalPersonIdBackUrl?.Trim(),
+                AdminUserId = adminUser.Id,
+                IsSkipApproval = request.IsSkipApproval,
+                CreatedAt = DateTime.UtcNow
+            };
+            await eventPublisher.PublishAsync("tenant.created", tenantCreatedEvent, cancellationToken);
+            logger.LogInformation("租户 {TenantId} 创建事件已发布", tenantId);
         }
         catch (Exception ex)
         {