diff --git a/src/ai-service/Deal.Ai.Tests/Ai/AiTestHost.cs b/src/ai-service/Deal.Ai.Tests/Ai/AiTestHost.cs
index d342cbd..4d0796e 100644
--- a/src/ai-service/Deal.Ai.Tests/Ai/AiTestHost.cs
+++ b/src/ai-service/Deal.Ai.Tests/Ai/AiTestHost.cs
@@ -1,7 +1,10 @@
 using System.Net;
 using System.Net.Sockets;
 using Deal.Ai.Llm;
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 using Grpc.Core;
 using Grpc.Net.Client;
 using Microsoft.AspNetCore.Builder;
diff --git a/src/ai-service/Deal.Ai/AiServiceHost.cs b/src/ai-service/Deal.Ai/AiServiceHost.cs
index 45d25af..134f929 100644
--- a/src/ai-service/Deal.Ai/AiServiceHost.cs
+++ b/src/ai-service/Deal.Ai/AiServiceHost.cs
@@ -1,4 +1,7 @@
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 
 namespace Deal.Ai;
 
diff --git a/src/ai-service/Deal.Ai/Program.cs b/src/ai-service/Deal.Ai/Program.cs
index 85f45fb..b35dc1f 100644
--- a/src/ai-service/Deal.Ai/Program.cs
+++ b/src/ai-service/Deal.Ai/Program.cs
@@ -12,7 +12,10 @@
 // задачи 7–8): фасад живёт в Deal.Ai/Llm.
 
 using Deal.Ai;
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 
 // Порт по умолчанию — 5102 (Ruling 12, compose.dev.yml); переопределяется env GRPC_PORT (контейнер)
 // или PORT (общий конвенциональный env хостинг-платформ) — см. GrpcHostEnvironment.ResolveGrpcPort.
diff --git a/src/core/Deal.Api/Observability/DealMetricsHosting.cs b/src/core/Deal.Api/Observability/DealMetricsHosting.cs
index 0c440ac..324c46a 100644
--- a/src/core/Deal.Api/Observability/DealMetricsHosting.cs
+++ b/src/core/Deal.Api/Observability/DealMetricsHosting.cs
@@ -10,7 +10,7 @@ namespace Deal.Api.Observability;
 /// </summary>
 /// <remarks>
 /// <para>
-/// Зеркалит общий хелпер сервисов (<c>Deal.Grpc.Hosting.DealMetricsHosting</c>) — ядро не ссылается на
+/// Зеркалит общий хелпер сервисов (<c>Deal.Grpc.Hosting.Services.DealMetricsHosting</c>) — ядро не ссылается на
 /// обвязку gRPC-сервисов, поэтому держит свою копию по конвенции проекта (см. комментарий в
 /// Deal.Grpc.Hosting.csproj). Отдельный HTTP/1.1-эндпоинт нужен, т.к. основной HTTP :5080 уже
 /// обслуживает приложение, а gRPC-ингресс :5082 слушает только HTTP/2.
diff --git a/src/core/Deal.Modules.Tenants/Application/Services/InviteCodeGenerator.cs b/src/core/Deal.Modules.Tenants/Application/Services/InviteCodeGenerator.cs
index 2a653fb..de45231 100644
--- a/src/core/Deal.Modules.Tenants/Application/Services/InviteCodeGenerator.cs
+++ b/src/core/Deal.Modules.Tenants/Application/Services/InviteCodeGenerator.cs
@@ -1,4 +1,5 @@
 using Deal.SharedKernel;
+using Deal.SharedKernel.Utilities;
 
 namespace Deal.Modules.Tenants.Application.Services;
 
diff --git a/src/core/Deal.Modules.Tenants/Application/Services/SessionTokens.cs b/src/core/Deal.Modules.Tenants/Application/Services/SessionTokens.cs
index 30b9584..d230926 100644
--- a/src/core/Deal.Modules.Tenants/Application/Services/SessionTokens.cs
+++ b/src/core/Deal.Modules.Tenants/Application/Services/SessionTokens.cs
@@ -1,6 +1,7 @@
 using System.Security.Cryptography;
 using System.Text;
 using Deal.SharedKernel;
+using Deal.SharedKernel.Utilities;
 
 namespace Deal.Modules.Tenants.Application.Services;
 
diff --git a/src/core/Deal.Modules.Tenants/Application/Services/TenantAdminService.cs b/src/core/Deal.Modules.Tenants/Application/Services/TenantAdminService.cs
index 1240a87..eae1f82 100644
--- a/src/core/Deal.Modules.Tenants/Application/Services/TenantAdminService.cs
+++ b/src/core/Deal.Modules.Tenants/Application/Services/TenantAdminService.cs
@@ -1,6 +1,7 @@
 using Deal.Modules.Tenants.Application.Abstractions;
 using Deal.Modules.Tenants.Application.Models;
 using Deal.SharedKernel;
+using Deal.SharedKernel.Utilities;
 
 namespace Deal.Modules.Tenants.Application.Services;
 
diff --git a/src/core/Deal.SharedKernel/SharedKernelMarker.cs b/src/core/Deal.SharedKernel/SharedKernelMarker.cs
index 6cc95c1..399175c 100644
--- a/src/core/Deal.SharedKernel/SharedKernelMarker.cs
+++ b/src/core/Deal.SharedKernel/SharedKernelMarker.cs
@@ -1,3 +1,5 @@
+using Deal.SharedKernel.Utilities;
+
 namespace Deal.SharedKernel;
 
 /// <summary>
diff --git a/src/core/Deal.SharedKernel/Tenants/Models/TenantId.cs b/src/core/Deal.SharedKernel/Tenants/Models/TenantId.cs
index 6ac8f26..948b1c3 100644
--- a/src/core/Deal.SharedKernel/Tenants/Models/TenantId.cs
+++ b/src/core/Deal.SharedKernel/Tenants/Models/TenantId.cs
@@ -1,3 +1,5 @@
+using Deal.SharedKernel.Utilities;
+
 namespace Deal.SharedKernel.Tenants.Models;
 
 /// <summary>
diff --git a/src/core/Deal.SharedKernel/UrlSafeToken.cs b/src/core/Deal.SharedKernel/Utilities/UrlSafeToken.cs
similarity index 92%
rename from src/core/Deal.SharedKernel/UrlSafeToken.cs
rename to src/core/Deal.SharedKernel/Utilities/UrlSafeToken.cs
index 49859e4..018e1f2 100644
--- a/src/core/Deal.SharedKernel/UrlSafeToken.cs
+++ b/src/core/Deal.SharedKernel/Utilities/UrlSafeToken.cs
@@ -1,6 +1,8 @@
 using System.Security.Cryptography;
+using Deal.SharedKernel;
+using Deal.SharedKernel.Utilities;
 
-namespace Deal.SharedKernel;
+namespace Deal.SharedKernel.Utilities;
 
 /// <summary>
 /// Криптостойкие url-safe токены (Base64Url без padding) для одноразовых секретов: raw-токены сессий,
diff --git a/src/grpc-hosting/Deal.Grpc.Hosting/RpcCallLoggingInterceptor.cs b/src/grpc-hosting/Deal.Grpc.Hosting/Interceptors/RpcCallLoggingInterceptor.cs
similarity index 96%
rename from src/grpc-hosting/Deal.Grpc.Hosting/RpcCallLoggingInterceptor.cs
rename to src/grpc-hosting/Deal.Grpc.Hosting/Interceptors/RpcCallLoggingInterceptor.cs
index 7ba641b..6d14672 100644
--- a/src/grpc-hosting/Deal.Grpc.Hosting/RpcCallLoggingInterceptor.cs
+++ b/src/grpc-hosting/Deal.Grpc.Hosting/Interceptors/RpcCallLoggingInterceptor.cs
@@ -2,8 +2,11 @@ using System.Diagnostics;
 using Grpc.Core;
 using Grpc.Core.Interceptors;
 using Microsoft.Extensions.Logging;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 
-namespace Deal.Grpc.Hosting;
+namespace Deal.Grpc.Hosting.Interceptors;
 
 /// <summary>
 /// Access-лог RPC Deal-сервисов (Ruling 7, план Task 14; общий шаблон трёх сервисов — C31): каждый
diff --git a/src/grpc-hosting/Deal.Grpc.Hosting/ServiceTokenInterceptor.cs b/src/grpc-hosting/Deal.Grpc.Hosting/Interceptors/ServiceTokenInterceptor.cs
similarity index 96%
rename from src/grpc-hosting/Deal.Grpc.Hosting/ServiceTokenInterceptor.cs
rename to src/grpc-hosting/Deal.Grpc.Hosting/Interceptors/ServiceTokenInterceptor.cs
index 354a381..a19cefe 100644
--- a/src/grpc-hosting/Deal.Grpc.Hosting/ServiceTokenInterceptor.cs
+++ b/src/grpc-hosting/Deal.Grpc.Hosting/Interceptors/ServiceTokenInterceptor.cs
@@ -3,8 +3,11 @@ using System.Text;
 using Grpc.Core;
 using Grpc.Core.Interceptors;
 using Microsoft.Extensions.Configuration;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 
-namespace Deal.Grpc.Hosting;
+namespace Deal.Grpc.Hosting.Interceptors;
 
 /// <summary>
 /// Серверный интерцептор service-token (Ruling 1; общий шаблон трёх Deal-сервисов — C31).
diff --git a/src/grpc-hosting/Deal.Grpc.Hosting/MtlsCertificates.cs b/src/grpc-hosting/Deal.Grpc.Hosting/Models/MtlsCertificates.cs
similarity index 96%
rename from src/grpc-hosting/Deal.Grpc.Hosting/MtlsCertificates.cs
rename to src/grpc-hosting/Deal.Grpc.Hosting/Models/MtlsCertificates.cs
index 9664130..331069f 100644
--- a/src/grpc-hosting/Deal.Grpc.Hosting/MtlsCertificates.cs
+++ b/src/grpc-hosting/Deal.Grpc.Hosting/Models/MtlsCertificates.cs
@@ -1,8 +1,11 @@
 using System.Net.Security;
 using System.Security.Cryptography;
 using System.Security.Cryptography.X509Certificates;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 
-namespace Deal.Grpc.Hosting;
+namespace Deal.Grpc.Hosting.Models;
 
 /// <summary>
 /// Загруженный набор сертификатов mTLS внутреннего gRPC (Ruling 6, план Task 13; общий шаблон — C31).
diff --git a/src/grpc-hosting/Deal.Grpc.Hosting/MtlsOptions.cs b/src/grpc-hosting/Deal.Grpc.Hosting/Options/MtlsOptions.cs
similarity index 95%
rename from src/grpc-hosting/Deal.Grpc.Hosting/MtlsOptions.cs
rename to src/grpc-hosting/Deal.Grpc.Hosting/Options/MtlsOptions.cs
index 9206c42..25cea26 100644
--- a/src/grpc-hosting/Deal.Grpc.Hosting/MtlsOptions.cs
+++ b/src/grpc-hosting/Deal.Grpc.Hosting/Options/MtlsOptions.cs
@@ -1,6 +1,9 @@
 using Microsoft.Extensions.Configuration;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Services;
 
-namespace Deal.Grpc.Hosting;
+namespace Deal.Grpc.Hosting.Options;
 
 /// <summary>
 /// Конфигурация mTLS-транспорта внутреннего gRPC (Ruling 6, план Task 13; общий шаблон — C31).
diff --git a/src/grpc-hosting/Deal.Grpc.Hosting/DealLogging.cs b/src/grpc-hosting/Deal.Grpc.Hosting/Services/DealLogging.cs
similarity index 96%
rename from src/grpc-hosting/Deal.Grpc.Hosting/DealLogging.cs
rename to src/grpc-hosting/Deal.Grpc.Hosting/Services/DealLogging.cs
index 63942f6..bf4aa4f 100644
--- a/src/grpc-hosting/Deal.Grpc.Hosting/DealLogging.cs
+++ b/src/grpc-hosting/Deal.Grpc.Hosting/Services/DealLogging.cs
@@ -4,8 +4,11 @@ using Microsoft.Extensions.Hosting;
 using Serilog;
 using Serilog.Events;
 using Serilog.Formatting.Compact;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
 
-namespace Deal.Grpc.Hosting;
+namespace Deal.Grpc.Hosting.Services;
 
 /// <summary>
 /// Serilog-конфигурация процесса Deal-сервиса (Ruling 7/9, план Task 14; общий шаблон — C31).
diff --git a/src/grpc-hosting/Deal.Grpc.Hosting/DealMetricsHosting.cs b/src/grpc-hosting/Deal.Grpc.Hosting/Services/DealMetricsHosting.cs
similarity index 95%
rename from src/grpc-hosting/Deal.Grpc.Hosting/DealMetricsHosting.cs
rename to src/grpc-hosting/Deal.Grpc.Hosting/Services/DealMetricsHosting.cs
index 9ff85e5..053e04b 100644
--- a/src/grpc-hosting/Deal.Grpc.Hosting/DealMetricsHosting.cs
+++ b/src/grpc-hosting/Deal.Grpc.Hosting/Services/DealMetricsHosting.cs
@@ -3,8 +3,11 @@ using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Server.Kestrel.Core;
 using Microsoft.Extensions.DependencyInjection;
 using OpenTelemetry.Metrics;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
 
-namespace Deal.Grpc.Hosting;
+namespace Deal.Grpc.Hosting.Services;
 
 /// <summary>
 /// Общая настройка метрик Deal-сервисов (этап 12, пакет A): OpenTelemetry → экспортёр Prometheus,
diff --git a/src/grpc-hosting/Deal.Grpc.Hosting/GrpcHostEnvironment.cs b/src/grpc-hosting/Deal.Grpc.Hosting/Services/GrpcHostEnvironment.cs
similarity index 94%
rename from src/grpc-hosting/Deal.Grpc.Hosting/GrpcHostEnvironment.cs
rename to src/grpc-hosting/Deal.Grpc.Hosting/Services/GrpcHostEnvironment.cs
index 17d81da..bc6346d 100644
--- a/src/grpc-hosting/Deal.Grpc.Hosting/GrpcHostEnvironment.cs
+++ b/src/grpc-hosting/Deal.Grpc.Hosting/Services/GrpcHostEnvironment.cs
@@ -1,4 +1,8 @@
-namespace Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+
+namespace Deal.Grpc.Hosting.Services;
 
 /// <summary>
 /// Общие стартовые проверки/разбор env для Program.cs Deal-сервисов (C31): порт Kestrel
diff --git a/src/grpc-hosting/Deal.Grpc.Hosting/GrpcServer.cs b/src/grpc-hosting/Deal.Grpc.Hosting/Services/GrpcServer.cs
similarity index 95%
rename from src/grpc-hosting/Deal.Grpc.Hosting/GrpcServer.cs
rename to src/grpc-hosting/Deal.Grpc.Hosting/Services/GrpcServer.cs
index e3f6667..68d4d2a 100644
--- a/src/grpc-hosting/Deal.Grpc.Hosting/GrpcServer.cs
+++ b/src/grpc-hosting/Deal.Grpc.Hosting/Services/GrpcServer.cs
@@ -5,8 +5,11 @@ using Microsoft.AspNetCore.Server.Kestrel.Core;
 using Microsoft.AspNetCore.Server.Kestrel.Https;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Diagnostics.HealthChecks;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
 
-namespace Deal.Grpc.Hosting;
+namespace Deal.Grpc.Hosting.Services;
 
 /// <summary>
 /// Общие серверные блоки gRPC-хостов Deal-сервисов (C31): mTLS-набор, Kestrel HTTP/2-эндпоинт,
diff --git a/src/ml-service/Deal.Ml.Tests/Grpc/MlTestHost.cs b/src/ml-service/Deal.Ml.Tests/Grpc/MlTestHost.cs
index dcc1287..88a78cd 100644
--- a/src/ml-service/Deal.Ml.Tests/Grpc/MlTestHost.cs
+++ b/src/ml-service/Deal.Ml.Tests/Grpc/MlTestHost.cs
@@ -1,6 +1,9 @@
 using System.Net;
 using System.Net.Sockets;
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 using Deal.Ml.Model;
 using Grpc.Core;
 using Grpc.Net.Client;
diff --git a/src/ml-service/Deal.Ml/MlServiceHost.cs b/src/ml-service/Deal.Ml/MlServiceHost.cs
index 6f71732..01dfa71 100644
--- a/src/ml-service/Deal.Ml/MlServiceHost.cs
+++ b/src/ml-service/Deal.Ml/MlServiceHost.cs
@@ -1,4 +1,7 @@
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 using Deal.Ml.Model;
 
 namespace Deal.Ml;
diff --git a/src/ml-service/Deal.Ml/Program.cs b/src/ml-service/Deal.Ml/Program.cs
index d268f93..c3e5036 100644
--- a/src/ml-service/Deal.Ml/Program.cs
+++ b/src/ml-service/Deal.Ml/Program.cs
@@ -11,7 +11,10 @@
 // наивный Байес по терминам per-tenant (файлы data/ml/<tenantId>.sqlite, Ruling 4) — движок/пул
 // в Model/, хранилище в Storage/, gRPC Predict/Status/Reset/TrainBatch — MlServiceImpl.
 
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 using Deal.Ml;
 
 // Порт по умолчанию — 5103 (Ruling 12, compose.dev.yml); переопределяется env GRPC_PORT (контейнер)
diff --git a/src/telegram-service/Deal.Telegram.Tests/Grpc/TelegramTestHost.cs b/src/telegram-service/Deal.Telegram.Tests/Grpc/TelegramTestHost.cs
index aa68661..d76c984 100644
--- a/src/telegram-service/Deal.Telegram.Tests/Grpc/TelegramTestHost.cs
+++ b/src/telegram-service/Deal.Telegram.Tests/Grpc/TelegramTestHost.cs
@@ -1,6 +1,9 @@
 using System.Net;
 using System.Net.Sockets;
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 using Deal.Telegram.Core;
 using Deal.Telegram.Sessions;
 using Grpc.Core;
diff --git a/src/telegram-service/Deal.Telegram/Core/CoreIngressClient.cs b/src/telegram-service/Deal.Telegram/Core/CoreIngressClient.cs
index 3f150fa..c5b5f76 100644
--- a/src/telegram-service/Deal.Telegram/Core/CoreIngressClient.cs
+++ b/src/telegram-service/Deal.Telegram/Core/CoreIngressClient.cs
@@ -1,4 +1,7 @@
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 using Deal.Grpc.Telegram;
 using Deal.Telegram.Sessions;
 using Grpc.Core;
diff --git a/src/telegram-service/Deal.Telegram/Program.cs b/src/telegram-service/Deal.Telegram/Program.cs
index 62309a6..351646d 100644
--- a/src/telegram-service/Deal.Telegram/Program.cs
+++ b/src/telegram-service/Deal.Telegram/Program.cs
@@ -11,7 +11,10 @@
 // каталога/мониторинга (Task 10) и discovery-операции Search/GetInfo/ReadForEval/Join/Leave
 // (Task 11, см. TelegramServiceImpl/DiscoveryOps).
 
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 using Deal.Telegram;
 
 // Порт по умолчанию — 5101 (Ruling 12, compose.dev.yml); переопределяется env GRPC_PORT (контейнер)
diff --git a/src/telegram-service/Deal.Telegram/TelegramServiceHost.cs b/src/telegram-service/Deal.Telegram/TelegramServiceHost.cs
index 6eb0647..e94f219 100644
--- a/src/telegram-service/Deal.Telegram/TelegramServiceHost.cs
+++ b/src/telegram-service/Deal.Telegram/TelegramServiceHost.cs
@@ -1,4 +1,7 @@
-using Deal.Grpc.Hosting;
+using Deal.Grpc.Hosting.Interceptors;
+using Deal.Grpc.Hosting.Models;
+using Deal.Grpc.Hosting.Options;
+using Deal.Grpc.Hosting.Services;
 using Deal.Telegram.Core;
 using Deal.Telegram.Dialogs;
 using Deal.Telegram.Discovery;