feat: admin simple 登录支持 账号@手机号

src/Infrastructure/TakeoutSaaS.Infrastructure/App/Repositories/EfTenantRepository.cs

@@ -77,6 +77,18 @@ public sealed class EfTenantRepository(TakeoutAppDbContext context) : ITenantRep
         return context.Tenants.AnyAsync(x => x.ContactPhone == normalized, cancellationToken);
     }
 
+    /// <inheritdoc />
+    public Task<long?> FindTenantIdByContactPhoneAsync(string phone, CancellationToken cancellationToken = default)
+    {
+        // 1. 标准化手机号
+        var normalized = phone.Trim();
+        // 2. 查询租户 ID
+        return context.Tenants.AsNoTracking()
+            .Where(x => x.ContactPhone == normalized)
+            .Select(x => (long?)x.Id)
+            .FirstOrDefaultAsync(cancellationToken);
+    }
+
     /// <inheritdoc />
     public Task<TenantVerificationProfile?> GetVerificationProfileAsync(long tenantId, CancellationToken cancellationToken = default)
     {