feat: 新增租户审核领取和审核日志接口

- 新增 TenantReviewClaim 和 TenantAuditLog 实体
- 新增 TenantAuditAction 枚举
- 新增审核领取相关接口：GET/POST /review/claim, /review/force-claim, /review/release
- 新增审核日志接口：GET /audits
- 更新 ITenantRepository 和 EfTenantRepository
- 更新 TakeoutAppDbContext 添加 DbSet

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

src/Application/TakeoutSaaS.Application/App/Tenants/Commands/ClaimTenantReviewCommand.cs

@@ -0,0 +1,9 @@
+using MediatR;
+using TakeoutSaaS.Application.App.Tenants.Contracts;
+
+namespace TakeoutSaaS.Application.App.Tenants.Commands;
+
+/// <summary>
+/// 领取租户审核命令。
+/// </summary>
+public sealed record ClaimTenantReviewCommand(long TenantId) : IRequest<TenantReviewClaimDto>;