From 1fbe29a838843d3552b082fb43d958d86833fa1a Mon Sep 17 00:00:00 2001
From: stepan <st@haldec.ru>
Date: Sun, 13 Sep 2026 20:51:36 +0300
Subject: [PATCH] =?UTF-8?q?=D0=92=D1=8B=D0=BD=D0=B5=D1=81=D1=82=D0=B8=20?=
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Литералы статусов/видов/фаз и wire-ключей заменены каталогами: значения сущностей и репозиториев — TenantStatuses/TenantLimitPeriods/InviteStatuses/ContainerKinds/ContainerSpaces/CardIds/Discovery*/PipelineQueueStatuses; контакты и виды вложений — CardContactTypes/CardFileKinds; источники и этапы отсева — PipelineRejectStages/PipelineRejectSources; ключи промптов/провайдеров — SettingsFieldKeys; wire-ключи канбана — KanbanWireKeys; режимы правил — ColumnRuleModes; операции/фазы/виды диалогов/контакты Telegram и общий BoolText — в Deal.Contracts/Deal.SharedKernel; имена метрик — DealMetrics. Значения не менялись.
---
 .../Deal.Api/Endpoints/AiCheckEndpoint.cs     |   6 +-
 src/core/Deal.Api/Endpoints/CardsEndpoints.cs |   8 +-
 .../Deal.Api/Endpoints/ContainersEndpoints.cs |   4 +-
 .../Deal.Api/Endpoints/TelegramEndpoints.cs   |  13 ++-
 .../Services/TelegramBackfillScheduler.cs     |   8 +-
 .../Sources/SourceIngressGrpcService.cs       |   7 +-
 .../Integrations/Models/CardContactTypes.cs   |  42 +++++++
 .../Integrations/Models/TelegramAuthPhases.cs |  37 ++++++
 .../Models/TelegramDialogKinds.cs             |  27 +++++
 .../Integrations/Models/TelegramOperations.cs | 102 +++++++++++++++++
 .../Integrations/Extensions/UriExtensions.cs  |   5 +-
 .../Integrations/Options/MtlsOptions.cs       |   9 +-
 .../Services/GrpcTelegramClient.cs            |  34 +++---
 .../Services/LocalColumnSuggester.cs          |   4 +-
 .../Services/LocalTelegramGateway.cs          |   4 +-
 .../Storage/Extensions/StringExtensions.cs    |   7 +-
 .../Persistence/Entities/CardEntity.cs        |   3 +-
 .../Persistence/Entities/ContainerEntity.cs   |   5 +-
 .../Entities/DiscCandidateEntity.cs           |   6 +-
 .../Persistence/Entities/DiscTaskEntity.cs    |   4 +-
 .../Persistence/Entities/InviteEntity.cs      |   4 +-
 .../Persistence/Entities/OperatorEntity.cs    |   4 +-
 .../Persistence/Entities/QueueItemEntity.cs   |   4 +-
 .../Entities/RejectedItemEntity.cs            |   4 +-
 .../Persistence/Entities/TenantEntity.cs      |   4 +-
 .../Persistence/Entities/TenantLimitEntity.cs |   4 +-
 .../Persistence/Entities/UserEntity.cs        |   4 +-
 .../Repositories/DiscoveryStore.Candidates.cs |   8 +-
 .../Repositories/DiscoveryStore.Tasks.cs      |  10 +-
 .../Application/Models/CardContact.cs         |   4 +-
 .../Application/Models/CardFile.cs            |   2 +-
 .../Application/Models/CardFileKinds.cs       |  37 ++++++
 .../Models/DiscoveryCandidateKinds.cs         |  20 ++++
 .../Models/DiscoveryCandidateRow.cs           |   2 +-
 .../Application/Models/DiscoveryFitOrigins.cs |  17 +++
 .../Application/Models/DiscoveryLanguages.cs  |  17 +++
 .../Services/DiscoveryEvaluator.cs            |   6 +-
 .../Services/DiscoveryTasksService.cs         |   4 +-
 .../DiscoveryWorkerService.Helpers.cs         |  16 ++-
 .../Services/DiscoveryWorkerService.Search.cs |   2 +-
 .../Application/ColumnRules/ColumnMatcher.cs  |   2 +-
 .../Application/ColumnRules/RulesDescriber.cs |   2 +-
 .../Application/Models/ColumnRuleModes.cs     |  17 +++
 .../Application/Models/ContainerCreateDto.cs  |   4 +-
 .../Application/Models/KanbanWireKeys.cs      |  52 +++++++++
 .../Services/CardsService.Selected.cs         |   6 +-
 .../Application/Models/AiRawCardKeys.cs       | 107 ++++++++++++++++++
 .../Models/PipelineRejectConstants.cs         |  38 +++----
 .../Models/PipelineRejectSources.cs           |  32 ++++++
 .../Models/PipelineRejectStages.cs            |  77 +++++++++++++
 .../Application/Parse/ContactsQualifier.cs    |  27 ++---
 .../Application/Services/AiRawCardMapper.cs   |  50 ++++----
 .../Application/Services/MlReviewService.cs   |   2 +-
 .../Services/PipelineProcessingService.cs     |   8 +-
 .../Application/Models/SettingsFieldKeys.cs   |  37 ++++++
 .../SettingsService.PatchMyPrompts.cs         |   6 +-
 .../Services/SettingsService.PatchSecrets.cs  |   6 +-
 .../Services/SettingsService.ReadMerge.cs     |  11 +-
 .../Services/TenantAdminService.cs            |   2 +-
 .../Observability/DealMetrics.cs              |  63 +++++++++--
 .../Deal.SharedKernel/Utilities/BoolText.cs   |  17 +++
 61 files changed, 907 insertions(+), 167 deletions(-)
 create mode 100644 src/core/Deal.Contracts/Integrations/Models/CardContactTypes.cs
 create mode 100644 src/core/Deal.Contracts/Integrations/Models/TelegramAuthPhases.cs
 create mode 100644 src/core/Deal.Contracts/Integrations/Models/TelegramDialogKinds.cs
 create mode 100644 src/core/Deal.Contracts/Integrations/Models/TelegramOperations.cs
 create mode 100644 src/core/Deal.Modules.Cards/Application/Models/CardFileKinds.cs
 create mode 100644 src/core/Deal.Modules.Discovery/Application/Models/DiscoveryFitOrigins.cs
 create mode 100644 src/core/Deal.Modules.Discovery/Application/Models/DiscoveryLanguages.cs
 create mode 100644 src/core/Deal.Modules.Kanban/Application/Models/ColumnRuleModes.cs
 create mode 100644 src/core/Deal.Modules.Kanban/Application/Models/KanbanWireKeys.cs
 create mode 100644 src/core/Deal.Modules.Pipeline/Application/Models/AiRawCardKeys.cs
 create mode 100644 src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectSources.cs
 create mode 100644 src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectStages.cs
 create mode 100644 src/core/Deal.Modules.Settings/Application/Models/SettingsFieldKeys.cs
 create mode 100644 src/core/Deal.SharedKernel/Utilities/BoolText.cs

diff --git a/src/core/Deal.Api/Endpoints/AiCheckEndpoint.cs b/src/core/Deal.Api/Endpoints/AiCheckEndpoint.cs
index 6651c19..c459027 100644
--- a/src/core/Deal.Api/Endpoints/AiCheckEndpoint.cs
+++ b/src/core/Deal.Api/Endpoints/AiCheckEndpoint.cs
@@ -127,9 +127,9 @@ public static class AiCheckEndpoint
                 && entry.ValueKind == JsonValueKind.Object)
             {
                 return new AiConfigSetting(
-                    ApiKey: ReadField(entry, "apiKey") ?? defaults.ApiKey,
-                    BaseUrl: ReadField(entry, "baseUrl") ?? defaults.BaseUrl,
-                    Model: ReadField(entry, "model") ?? defaults.Model);
+                    ApiKey: ReadField(entry, SettingsFieldKeys.ApiKey) ?? defaults.ApiKey,
+                    BaseUrl: ReadField(entry, SettingsFieldKeys.BaseUrl) ?? defaults.BaseUrl,
+                    Model: ReadField(entry, SettingsFieldKeys.Model) ?? defaults.Model);
             }
         }
         catch (JsonException)
diff --git a/src/core/Deal.Api/Endpoints/CardsEndpoints.cs b/src/core/Deal.Api/Endpoints/CardsEndpoints.cs
index d27dd52..216139a 100644
--- a/src/core/Deal.Api/Endpoints/CardsEndpoints.cs
+++ b/src/core/Deal.Api/Endpoints/CardsEndpoints.cs
@@ -105,15 +105,15 @@ public static class CardsEndpoints
         CardsService cardsService = context.RequestServices.GetRequiredService<CardsService>();
         CardCountsDto counts = await cardsService.CountsAsync(ct);
 
-        var wire = new Dictionary<string, object> { ["new"] = counts.New };
+        var wire = new Dictionary<string, object> { [KanbanWireKeys.New] = counts.New };
         foreach ((string col, CardColumnCountDto column) in counts.Columns)
         {
             wire[col] = column;
         }
 
-        wire["learning"] = counts.Learning;
-        wire["ml"] = counts.Ml;
-        wire["ai"] = counts.Ai;
+        wire[KanbanWireKeys.Learning] = counts.Learning;
+        wire[KanbanWireKeys.Ml] = counts.Ml;
+        wire[KanbanWireKeys.Ai] = counts.Ai;
         return Results.Ok(wire);
     }
 
diff --git a/src/core/Deal.Api/Endpoints/ContainersEndpoints.cs b/src/core/Deal.Api/Endpoints/ContainersEndpoints.cs
index aff2392..5bc70ec 100644
--- a/src/core/Deal.Api/Endpoints/ContainersEndpoints.cs
+++ b/src/core/Deal.Api/Endpoints/ContainersEndpoints.cs
@@ -288,12 +288,12 @@ public static class ContainersEndpoints
         var wire = new Dictionary<string, object>();
         if (state.Collapsed is { } collapsed)
         {
-            wire["collapsed"] = collapsed;
+            wire[KanbanWireKeys.Collapsed] = collapsed;
         }
 
         if (state.Width is not null)
         {
-            wire["width"] = state.Width;
+            wire[KanbanWireKeys.Width] = state.Width;
         }
 
         return wire;
diff --git a/src/core/Deal.Api/Endpoints/TelegramEndpoints.cs b/src/core/Deal.Api/Endpoints/TelegramEndpoints.cs
index d81a796..d049d97 100644
--- a/src/core/Deal.Api/Endpoints/TelegramEndpoints.cs
+++ b/src/core/Deal.Api/Endpoints/TelegramEndpoints.cs
@@ -67,7 +67,12 @@ public static class TelegramEndpoints
 
     private const string NotConnectedReason = "not-connected";
 
-    private const string ReadyPhase = "ready";
+    private const string ReadyPhase = TelegramAuthPhases.Ready;
+
+    // Русские подписи видов диалогов для операторского UI.
+    private const string RussianChannelLabel = "канал";
+    private const string RussianGroupLabel = "группа";
+    private const string RussianChatLabel = "чат";
 
     private const int PreviewDefaultLimit = 24;
 
@@ -482,9 +487,9 @@ public static class TelegramEndpoints
     {
         return kind switch
         {
-            "channel" => "канал",
-            "group" or "forum" => "группа",
-            "chat" => "чат",
+            TelegramDialogKinds.Channel => RussianChannelLabel,
+            TelegramDialogKinds.Group or TelegramDialogKinds.Forum => RussianGroupLabel,
+            TelegramDialogKinds.Chat => RussianChatLabel,
             _ => kind,
         };
     }
diff --git a/src/core/Deal.Api/Services/TelegramBackfillScheduler.cs b/src/core/Deal.Api/Services/TelegramBackfillScheduler.cs
index cb9eca2..d9f5f4c 100644
--- a/src/core/Deal.Api/Services/TelegramBackfillScheduler.cs
+++ b/src/core/Deal.Api/Services/TelegramBackfillScheduler.cs
@@ -12,6 +12,10 @@ public sealed class TelegramBackfillScheduler(
     IHostApplicationLifetime applicationLifetime,
     ILogger<TelegramBackfillScheduler> logger)
 {
+    // Имена фоновых задач (метки запуска).
+    private const string BackfillMonitoredJob = "backfill_monitored";
+    private const string FirstBackfillJob = "first_backfill";
+
     // Флаг in-flight «Перечитать» всех каналов (Interlocked): повторный вызов не плодит
     // параллельные полные перечитывания (Security review, как RatesRefreshScheduler).
     private int _readRecentInProgress;
@@ -27,7 +31,7 @@ public sealed class TelegramBackfillScheduler(
             return;
         }
 
-        RunBackground("backfill_monitored", RunReadRecentAsync);
+        RunBackground(BackfillMonitoredJob, RunReadRecentAsync);
     }
 
     /// <summary>
@@ -50,7 +54,7 @@ public sealed class TelegramBackfillScheduler(
             return;
         }
 
-        RunBackground("first_backfill", (provider, runLogger, ct) => RunFirstBackfillsAsync(provider, runLogger, dialogIds, ct));
+        RunBackground(FirstBackfillJob, (provider, runLogger, ct) => RunFirstBackfillsAsync(provider, runLogger, dialogIds, ct));
     }
 
     // Выполняет работу в собственном scope; любые ошибки — warning в лог (как RatesRefreshScheduler).
diff --git a/src/core/Deal.Api/Sources/SourceIngressGrpcService.cs b/src/core/Deal.Api/Sources/SourceIngressGrpcService.cs
index 93b3eb1..17c8dd6 100644
--- a/src/core/Deal.Api/Sources/SourceIngressGrpcService.cs
+++ b/src/core/Deal.Api/Sources/SourceIngressGrpcService.cs
@@ -21,6 +21,11 @@ public sealed class SourceIngressGrpcService(
     IngressTenantResolver tenants,
     ILogger<SourceIngressGrpcService> logger) : SourceIngressService.SourceIngressServiceBase
 {
+    // Исходы приёма источника для лога аудита.
+    private const string DuplicateOutcome = "duplicate";
+    private const string NoOpOutcome = "no-op";
+    private const string QueuedOutcome = "queued";
+
     /// <summary>
     /// PushSource — запись источника в очередь пайплайна тенанта.
     /// </summary>
@@ -57,7 +62,7 @@ public sealed class SourceIngressGrpcService(
                 tenant.Id,
                 item.Source.Kind,
                 item.Source.ExternalId ?? "-",
-                result.Duplicate ? "duplicate" : result.Id is null ? "no-op" : "queued");
+                result.Duplicate ? DuplicateOutcome : result.Id is null ? NoOpOutcome : QueuedOutcome);
 
             return new PushSourceReply
             {
diff --git a/src/core/Deal.Contracts/Integrations/Models/CardContactTypes.cs b/src/core/Deal.Contracts/Integrations/Models/CardContactTypes.cs
new file mode 100644
index 0000000..92b2a57
--- /dev/null
+++ b/src/core/Deal.Contracts/Integrations/Models/CardContactTypes.cs
@@ -0,0 +1,42 @@
+namespace Deal.Contracts.Integrations.Models;
+
+/// <summary>
+/// Типы контактов заказчика
+/// </summary>
+public static class CardContactTypes
+{
+    /// <summary>
+    /// Telegram (@username)
+    /// </summary>
+    public const string Telegram = "tg";
+
+    /// <summary>
+    /// Телефон
+    /// </summary>
+    public const string Phone = "phone";
+
+    /// <summary>
+    /// Email
+    /// </summary>
+    public const string Email = "email";
+
+    /// <summary>
+    /// WhatsApp
+    /// </summary>
+    public const string WhatsApp = "whatsapp";
+
+    /// <summary>
+    /// LinkedIn
+    /// </summary>
+    public const string LinkedIn = "linkedin";
+
+    /// <summary>
+    /// Сайт
+    /// </summary>
+    public const string Site = "site";
+
+    /// <summary>
+    /// Прочее (не опознано)
+    /// </summary>
+    public const string Other = "other";
+}
diff --git a/src/core/Deal.Contracts/Integrations/Models/TelegramAuthPhases.cs b/src/core/Deal.Contracts/Integrations/Models/TelegramAuthPhases.cs
new file mode 100644
index 0000000..265b40f
--- /dev/null
+++ b/src/core/Deal.Contracts/Integrations/Models/TelegramAuthPhases.cs
@@ -0,0 +1,37 @@
+namespace Deal.Contracts.Integrations.Models;
+
+/// <summary>
+/// Фазы входа в аккаунт Telegram
+/// </summary>
+public static class TelegramAuthPhases
+{
+    /// <summary>
+    /// Аккаунт не подключён
+    /// </summary>
+    public const string Idle = "idle";
+
+    /// <summary>
+    /// Ожидание номера телефона
+    /// </summary>
+    public const string Phone = "phone";
+
+    /// <summary>
+    /// Ожидание кода
+    /// </summary>
+    public const string Code = "code";
+
+    /// <summary>
+    /// Ожидание облачного пароля
+    /// </summary>
+    public const string Password = "password";
+
+    /// <summary>
+    /// Ожидание сканирования QR
+    /// </summary>
+    public const string Qr = "qr";
+
+    /// <summary>
+    /// Аккаунт авторизован
+    /// </summary>
+    public const string Ready = "ready";
+}
diff --git a/src/core/Deal.Contracts/Integrations/Models/TelegramDialogKinds.cs b/src/core/Deal.Contracts/Integrations/Models/TelegramDialogKinds.cs
new file mode 100644
index 0000000..88cf1e4
--- /dev/null
+++ b/src/core/Deal.Contracts/Integrations/Models/TelegramDialogKinds.cs
@@ -0,0 +1,27 @@
+namespace Deal.Contracts.Integrations.Models;
+
+/// <summary>
+/// Виды диалогов Telegram
+/// </summary>
+public static class TelegramDialogKinds
+{
+    /// <summary>
+    /// Канал
+    /// </summary>
+    public const string Channel = "channel";
+
+    /// <summary>
+    /// Группа
+    /// </summary>
+    public const string Group = "group";
+
+    /// <summary>
+    /// Форум (темы внутри группы)
+    /// </summary>
+    public const string Forum = "forum";
+
+    /// <summary>
+    /// Личный чат
+    /// </summary>
+    public const string Chat = "chat";
+}
diff --git a/src/core/Deal.Contracts/Integrations/Models/TelegramOperations.cs b/src/core/Deal.Contracts/Integrations/Models/TelegramOperations.cs
new file mode 100644
index 0000000..fd2cac5
--- /dev/null
+++ b/src/core/Deal.Contracts/Integrations/Models/TelegramOperations.cs
@@ -0,0 +1,102 @@
+namespace Deal.Contracts.Integrations.Models;
+
+/// <summary>
+/// Имена операций Telegram-гейта для логов и диагностики
+/// </summary>
+public static class TelegramOperations
+{
+    /// <summary>
+    /// Статус аккаунта
+    /// </summary>
+    public const string Status = "status";
+
+    /// <summary>
+    /// Вход по номеру телефона
+    /// </summary>
+    public const string StartPhone = "start_phone";
+
+    /// <summary>
+    /// Вход по QR
+    /// </summary>
+    public const string StartQr = "start_qr";
+
+    /// <summary>
+    /// Подтверждение кода
+    /// </summary>
+    public const string SendCode = "send_code";
+
+    /// <summary>
+    /// Подтверждение облачного пароля
+    /// </summary>
+    public const string SendPassword = "send_password";
+
+    /// <summary>
+    /// Выход из аккаунта
+    /// </summary>
+    public const string Logout = "logout";
+
+    /// <summary>
+    /// Обновление каталога диалогов
+    /// </summary>
+    public const string RefreshDialogs = "refresh_dialogs";
+
+    /// <summary>
+    /// Включение/выключение мониторинга диалога
+    /// </summary>
+    public const string SetMonitor = "set_monitor";
+
+    /// <summary>
+    /// Включение/выключение мониторинга всех диалогов
+    /// </summary>
+    public const string SetMonitorAll = "set_monitor_all";
+
+    /// <summary>
+    /// Перечитать последние сообщения
+    /// </summary>
+    public const string Backfill = "backfill";
+
+    /// <summary>
+    /// Чтение последних сообщений
+    /// </summary>
+    public const string ReadRecent = "read_recent";
+
+    /// <summary>
+    /// Чтение исходного сообщения
+    /// </summary>
+    public const string ReadSource = "read_source";
+
+    /// <summary>
+    /// Поиск источников
+    /// </summary>
+    public const string Search = "search";
+
+    /// <summary>
+    /// Информация об источнике
+    /// </summary>
+    public const string GetInfo = "get_info";
+
+    /// <summary>
+    /// Чтение сообщений для оценки
+    /// </summary>
+    public const string ReadForEval = "read_for_eval";
+
+    /// <summary>
+    /// Вступление в источник
+    /// </summary>
+    public const string Join = "join";
+
+    /// <summary>
+    /// Выход из источника
+    /// </summary>
+    public const string Leave = "leave";
+
+    /// <summary>
+    /// Информация об источнике (Discovery)
+    /// </summary>
+    public const string DiscoveryInfo = "discovery_info";
+
+    /// <summary>
+    /// Чтение сообщений источника (Discovery)
+    /// </summary>
+    public const string DiscoveryRead = "discovery_read";
+}
diff --git a/src/core/Deal.Infrastructure/Integrations/Extensions/UriExtensions.cs b/src/core/Deal.Infrastructure/Integrations/Extensions/UriExtensions.cs
index 5a38a50..064ade7 100644
--- a/src/core/Deal.Infrastructure/Integrations/Extensions/UriExtensions.cs
+++ b/src/core/Deal.Infrastructure/Integrations/Extensions/UriExtensions.cs
@@ -6,6 +6,9 @@ namespace Deal.Infrastructure.Integrations.Extensions;
 // Расширения Uri для SSRF-гейта интеграций
 internal static class UriExtensions
 {
+    // Имя loopback-хоста.
+    private const string LocalhostHost = "localhost";
+
     /// <summary>
     /// Проверяет, указывает ли URL на приватный/loopback/link-local адрес
     /// </summary>
@@ -14,7 +17,7 @@ internal static class UriExtensions
     public static bool IsPrivateEndpoint(this Uri uri)
     {
         string host = uri.Host;
-        if (string.Equals(host, "localhost", StringComparison.OrdinalIgnoreCase))
+        if (string.Equals(host, LocalhostHost, StringComparison.OrdinalIgnoreCase))
         {
             return true;
         }
diff --git a/src/core/Deal.Infrastructure/Integrations/Options/MtlsOptions.cs b/src/core/Deal.Infrastructure/Integrations/Options/MtlsOptions.cs
index b84afec..946fcbd 100644
--- a/src/core/Deal.Infrastructure/Integrations/Options/MtlsOptions.cs
+++ b/src/core/Deal.Infrastructure/Integrations/Options/MtlsOptions.cs
@@ -1,5 +1,7 @@
 using Microsoft.Extensions.Configuration;
 
+using Deal.SharedKernel.Utilities;
+
 namespace Deal.Infrastructure.Integrations.Options;
 
 /// <summary>
@@ -86,13 +88,16 @@ public sealed class MtlsOptions
         };
     }
 
+    // Строковое представление включённого флага числом.
+    private const string OneLiteral = "1";
+
     /// <summary>
     /// Разбирает значение флага DEAL_MTLS_ENABLED
     /// </summary>
     /// <param name="rawValue">Сырое значение env (null/пусто — выключено).</param>
     public static bool IsEnabled(string? rawValue)
-        => string.Equals(rawValue, "1", StringComparison.Ordinal)
-           || string.Equals(rawValue, "true", StringComparison.OrdinalIgnoreCase);
+        => string.Equals(rawValue, OneLiteral, StringComparison.Ordinal)
+           || string.Equals(rawValue, BoolText.True, StringComparison.OrdinalIgnoreCase);
 
     // Обрезает путь конфигурации (env-значения с пробелами/кавычками не передаются в файловые API).
     // rawValue: Сырое значение env.
diff --git a/src/core/Deal.Infrastructure/Integrations/Services/GrpcTelegramClient.cs b/src/core/Deal.Infrastructure/Integrations/Services/GrpcTelegramClient.cs
index a51d70c..a7d6ef1 100644
--- a/src/core/Deal.Infrastructure/Integrations/Services/GrpcTelegramClient.cs
+++ b/src/core/Deal.Infrastructure/Integrations/Services/GrpcTelegramClient.cs
@@ -73,7 +73,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "status");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.Status);
         }
     }
 
@@ -95,7 +95,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "start_phone");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.StartPhone);
         }
     }
 
@@ -118,7 +118,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "start_qr");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.StartQr);
         }
     }
 
@@ -135,7 +135,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "send_code");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.SendCode);
         }
     }
 
@@ -152,7 +152,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "send_password");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.SendPassword);
         }
     }
 
@@ -167,7 +167,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "logout");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.Logout);
         }
     }
 
@@ -183,7 +183,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "refresh_dialogs");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.RefreshDialogs);
         }
     }
 
@@ -202,7 +202,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "set_monitor");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.SetMonitor);
         }
     }
 
@@ -218,7 +218,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "set_monitor_all");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.SetMonitorAll);
         }
     }
 
@@ -238,7 +238,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "backfill");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.Backfill);
         }
     }
 
@@ -260,7 +260,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "read_recent");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.ReadRecent);
         }
     }
 
@@ -283,7 +283,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "read_source");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.ReadSource);
         }
     }
 
@@ -303,7 +303,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "search");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.Search);
         }
     }
 
@@ -328,7 +328,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "get_info");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.GetInfo);
         }
     }
 
@@ -358,7 +358,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "read_for_eval");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.ReadForEval);
         }
     }
 
@@ -374,7 +374,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "join");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.Join);
         }
     }
 
@@ -390,7 +390,7 @@ public sealed class GrpcTelegramClient : ITelegramGateway
         }
         catch (Exception exception)
         {
-            throw TranslateTransportFailure(exception, tenantId, "leave");
+            throw TranslateTransportFailure(exception, tenantId, TelegramOperations.Leave);
         }
     }
 
diff --git a/src/core/Deal.Infrastructure/Integrations/Services/LocalColumnSuggester.cs b/src/core/Deal.Infrastructure/Integrations/Services/LocalColumnSuggester.cs
index d1ad249..83c9f2c 100644
--- a/src/core/Deal.Infrastructure/Integrations/Services/LocalColumnSuggester.cs
+++ b/src/core/Deal.Infrastructure/Integrations/Services/LocalColumnSuggester.cs
@@ -39,8 +39,6 @@ ContainersService containersService) : IColumnSuggester
 
     private const string KeywordsEmptyReason = "ИИ не смог выделить ключи — попробуйте ещё раз";
 
-    private const string RulesModeAny = "any";
-
     /// <inheritdoc />
     public async Task<SuggestColumnsResultDto> SuggestColumnsAsync(CancellationToken ct)
     {
@@ -121,7 +119,7 @@ ContainersService containersService) : IColumnSuggester
         foreach (SuggestedColumnPlan plan in plans)
         {
             var rules = new ContainerRulesDto(
-                Mode: RulesModeAny,
+                Mode: ColumnRuleModes.Any,
                 Direction: Array.Empty<string>(),
                 Keywords: [plan.Word],
                 Stack: Array.Empty<string>(),
diff --git a/src/core/Deal.Infrastructure/Integrations/Services/LocalTelegramGateway.cs b/src/core/Deal.Infrastructure/Integrations/Services/LocalTelegramGateway.cs
index 6dee6a7..010a30a 100644
--- a/src/core/Deal.Infrastructure/Integrations/Services/LocalTelegramGateway.cs
+++ b/src/core/Deal.Infrastructure/Integrations/Services/LocalTelegramGateway.cs
@@ -5,6 +5,8 @@ namespace Deal.Infrastructure.Integrations.Services;
 
 public sealed class LocalTelegramGateway : ITelegramGateway
 {
+    // Причина пустого чтения: сообщений в источнике нет.
+    private const string NoHistoryReason = "no_history";
     // Фаза idle-формы (аккаунт не подключён — сервиса нет).
     private const string IdlePhase = "idle";
 
@@ -72,7 +74,7 @@ public sealed class LocalTelegramGateway : ITelegramGateway
         string dialogId,
         int limit,
         CancellationToken ct)
-        => Task.FromResult(new TelegramEvalReadDto(false, "no_history", []));
+        => Task.FromResult(new TelegramEvalReadDto(false, NoHistoryReason, []));
 
     Task ITelegramGateway.JoinAsync(string username, CancellationToken ct) => Task.CompletedTask;
 
diff --git a/src/core/Deal.Infrastructure/Integrations/Storage/Extensions/StringExtensions.cs b/src/core/Deal.Infrastructure/Integrations/Storage/Extensions/StringExtensions.cs
index f35320a..072bde7 100644
--- a/src/core/Deal.Infrastructure/Integrations/Storage/Extensions/StringExtensions.cs
+++ b/src/core/Deal.Infrastructure/Integrations/Storage/Extensions/StringExtensions.cs
@@ -1,8 +1,13 @@
+using Deal.SharedKernel.Utilities;
+
 namespace Deal.Infrastructure.Integrations.Storage.Extensions;
 
 // Расширения string для разбора конфигурационных значений.
 internal static class StringExtensions
 {
+    // Строковое представление включённого флага числом.
+    private const string OneLiteral = "1";
+
     /// <summary>
     /// Разбирает строковое значение как булев флаг конфигурации
     /// </summary>
@@ -10,6 +15,6 @@ internal static class StringExtensions
     /// <returns>True — значение распознано как включённое.</returns>
     public static bool IsTrue(this string raw)
     {
-        return string.Equals(raw, "true", StringComparison.OrdinalIgnoreCase) || raw == "1";
+        return string.Equals(raw, BoolText.True, StringComparison.OrdinalIgnoreCase) || raw == OneLiteral;
     }
 }
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/CardEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/CardEntity.cs
index a389a7f..59f1cd0 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/CardEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/CardEntity.cs
@@ -1,3 +1,4 @@
+using Deal.Modules.Cards.Application.Models;
 using NpgsqlTypes;
 
 namespace Deal.Infrastructure.Persistence.Entities;
@@ -130,7 +131,7 @@ public sealed class CardEntity
     /// <summary>
     /// Предыдущая колонка
     /// </summary>
-    public string PrevCol { get; set; } = "inbox";
+    public string PrevCol { get; set; } = CardIds.Inbox;
 
     /// <summary>
     /// Время помещения в архив
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/ContainerEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/ContainerEntity.cs
index 95297d4..7f6f0a6 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/ContainerEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/ContainerEntity.cs
@@ -1,3 +1,4 @@
+using Deal.Modules.Kanban.Application.Models;
 using NpgsqlTypes;
 
 namespace Deal.Infrastructure.Persistence.Entities;
@@ -35,12 +36,12 @@ public sealed class ContainerEntity
     /// <summary>
     /// Вид контейнера: board
     /// </summary>
-    public string Kind { get; set; } = "board";
+    public string Kind { get; set; } = ContainerKinds.Board;
 
     /// <summary>
     /// Пространство: dashboard | selected
     /// </summary>
-    public string Space { get; set; } = "dashboard";
+    public string Space { get; set; } = ContainerSpaces.Dashboard;
 
     /// <summary>
     /// Свёрнутость колонки на дашборде
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/DiscCandidateEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/DiscCandidateEntity.cs
index 8c88eae..b04f08a 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/DiscCandidateEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/DiscCandidateEntity.cs
@@ -1,3 +1,5 @@
+using Deal.Modules.Discovery.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -28,7 +30,7 @@ public sealed class DiscCandidateEntity
     /// <summary>
     /// Тип источника: channel|group|forum.
     /// </summary>
-    public string Kind { get; set; } = "channel";
+    public string Kind { get; set; } = DiscoveryCandidateKinds.Channel;
 
     /// <summary>
     /// Цвет источника из палитры DIALOG_HUES
@@ -63,7 +65,7 @@ public sealed class DiscCandidateEntity
     /// <summary>
     /// Статус кандидата
     /// </summary>
-    public string Status { get; set; } = "new";
+    public string Status { get; set; } = DiscoveryCandidateStatuses.New;
 
     /// <summary>
     /// Вступили автоматически
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/DiscTaskEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/DiscTaskEntity.cs
index f738819..ba0bc15 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/DiscTaskEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/DiscTaskEntity.cs
@@ -1,3 +1,5 @@
+using Deal.Modules.Discovery.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -55,7 +57,7 @@ public sealed class DiscTaskEntity
     /// <summary>
     /// Статус задачи: draft|running|paused|done|failed.
     /// </summary>
-    public string Status { get; set; } = "draft";
+    public string Status { get; set; } = DiscoveryTaskStatuses.Draft;
 
     /// <summary>
     /// Индекс текущего ключа поиска
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/InviteEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/InviteEntity.cs
index a6d9d23..14c58d9 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/InviteEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/InviteEntity.cs
@@ -1,3 +1,5 @@
+using Deal.Modules.Tenants.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -20,7 +22,7 @@ public sealed class InviteEntity
     /// </summary>
     public Guid? TenantId { get; set; }
 
-    public string Status { get; set; } = "pending";
+    public string Status { get; set; } = InviteStatuses.Pending;
 
     public DateTimeOffset ExpiresAt { get; set; }
 
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/OperatorEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/OperatorEntity.cs
index 73c28cb..ed686f6 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/OperatorEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/OperatorEntity.cs
@@ -1,3 +1,5 @@
+using Deal.Modules.Tenants.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -14,7 +16,7 @@ public sealed class OperatorEntity
 
     public string PasswordHash { get; set; } = string.Empty;
 
-    public string Status { get; set; } = "active";
+    public string Status { get; set; } = TenantStatuses.Active;
 
     public DateTimeOffset CreatedAt { get; set; }
 }
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/QueueItemEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/QueueItemEntity.cs
index 789ab9f..2cae754 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/QueueItemEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/QueueItemEntity.cs
@@ -1,3 +1,5 @@
+using Deal.Modules.Pipeline.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -38,7 +40,7 @@ public sealed class QueueItemEntity
     /// <summary>
     /// Статус строки: <c>new</c> — ждёт разбора воркером, <c>filtered</c> — прошла фильтры и ждёт ИИ/ML.
     /// </summary>
-    public string Status { get; set; } = "new";
+    public string Status { get; set; } = PipelineQueueStatuses.New;
 
     /// <summary>
     /// Признак возврата из отсева
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/RejectedItemEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/RejectedItemEntity.cs
index f8b3846..6dece73 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/RejectedItemEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/RejectedItemEntity.cs
@@ -1,5 +1,7 @@
 using NpgsqlTypes;
 
+using Deal.Modules.Pipeline.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -50,7 +52,7 @@ public sealed class RejectedItemEntity
     /// <summary>
     /// Кто вынес решение
     /// </summary>
-    public string Source { get; set; } = "stop";
+    public string Source { get; set; } = PipelineRejectSources.Rules;
 
     /// <summary>
     /// Время получения исходного сообщения
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/TenantEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/TenantEntity.cs
index e58c8d8..d6b8a2a 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/TenantEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/TenantEntity.cs
@@ -1,3 +1,5 @@
+using Deal.Modules.Tenants.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -9,7 +11,7 @@ public sealed class TenantEntity
 
     public string Name { get; set; } = string.Empty;
 
-    public string Status { get; set; } = "active";
+    public string Status { get; set; } = TenantStatuses.Active;
 
     public DateTimeOffset CreatedAt { get; set; }
 }
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/TenantLimitEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/TenantLimitEntity.cs
index ded8a6d..f747ad6 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/TenantLimitEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/TenantLimitEntity.cs
@@ -1,3 +1,5 @@
+using Deal.Modules.Tenants.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -18,7 +20,7 @@ public sealed class TenantLimitEntity
     /// <summary>
     /// Тип периода: month|day.
     /// </summary>
-    public string Period { get; set; } = "month";
+    public string Period { get; set; } = TenantLimitPeriods.Month;
 
     /// <summary>
     /// Начало текущего периода
diff --git a/src/core/Deal.Infrastructure/Persistence/Entities/UserEntity.cs b/src/core/Deal.Infrastructure/Persistence/Entities/UserEntity.cs
index a8521b6..2d133eb 100644
--- a/src/core/Deal.Infrastructure/Persistence/Entities/UserEntity.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Entities/UserEntity.cs
@@ -1,3 +1,5 @@
+using Deal.Modules.Tenants.Application.Models;
+
 namespace Deal.Infrastructure.Persistence.Entities;
 
 /// <summary>
@@ -16,7 +18,7 @@ public sealed class UserEntity
 
     public string PasswordHash { get; set; } = string.Empty;
 
-    public string Status { get; set; } = "active";
+    public string Status { get; set; } = TenantStatuses.Active;
 
     public DateTimeOffset CreatedAt { get; set; }
 }
diff --git a/src/core/Deal.Infrastructure/Persistence/Repositories/DiscoveryStore.Candidates.cs b/src/core/Deal.Infrastructure/Persistence/Repositories/DiscoveryStore.Candidates.cs
index 57f27fd..6fb4cdd 100644
--- a/src/core/Deal.Infrastructure/Persistence/Repositories/DiscoveryStore.Candidates.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Repositories/DiscoveryStore.Candidates.cs
@@ -59,7 +59,7 @@ public sealed partial class DiscoveryStore
             Username = row.Username,
             Kind = row.Kind,
             Hue = row.Hue,
-            Status = "new",
+            Status = DiscoveryCandidateStatuses.New,
             CreatedAt = now,
             UpdatedAt = now,
         });
@@ -123,7 +123,7 @@ public sealed partial class DiscoveryStore
             return false;
         }
 
-        row.Status = "joined";
+        row.Status = DiscoveryCandidateStatuses.Joined;
         row.AutoJoined = autoJoined;
         row.UpdatedAt = DateTimeOffset.UtcNow;
         await _dbContext.SaveChangesAsync(ct);
@@ -135,7 +135,7 @@ public sealed partial class DiscoveryStore
     {
         DiscCandidateEntity? row = await _dbContext.DiscCandidates
             .FirstOrDefaultAsync(candidate => candidate.DialogId == dialogId, ct);
-        if (row is null || row.Status != "review")
+        if (row is null || row.Status != DiscoveryCandidateStatuses.Review)
         {
             return null;
         }
@@ -156,7 +156,7 @@ public sealed partial class DiscoveryStore
             return false;
         }
 
-        row.Status = "rejected";
+        row.Status = DiscoveryCandidateStatuses.Rejected;
         row.UpdatedAt = DateTimeOffset.UtcNow;
         await _dbContext.SaveChangesAsync(ct);
         return true;
diff --git a/src/core/Deal.Infrastructure/Persistence/Repositories/DiscoveryStore.Tasks.cs b/src/core/Deal.Infrastructure/Persistence/Repositories/DiscoveryStore.Tasks.cs
index e39bae7..2bf2766 100644
--- a/src/core/Deal.Infrastructure/Persistence/Repositories/DiscoveryStore.Tasks.cs
+++ b/src/core/Deal.Infrastructure/Persistence/Repositories/DiscoveryStore.Tasks.cs
@@ -45,7 +45,7 @@ public sealed partial class DiscoveryStore
             SampleSize = row.SampleSize,
             PlanJoins = row.PlanJoins,
             AutoJoin = row.AutoJoin,
-            Status = "draft",
+            Status = DiscoveryTaskStatuses.Draft,
             CreatedAt = now,
             UpdatedAt = now,
         });
@@ -101,7 +101,7 @@ public sealed partial class DiscoveryStore
             return false;
         }
 
-        row.Status = "running";
+        row.Status = DiscoveryTaskStatuses.Running;
         if (resetProgress)
         {
             row.SearchIdx = 0;
@@ -127,7 +127,7 @@ public sealed partial class DiscoveryStore
             return false;
         }
 
-        row.Status = "paused";
+        row.Status = DiscoveryTaskStatuses.Paused;
         row.UpdatedAt = DateTimeOffset.UtcNow;
         await _dbContext.SaveChangesAsync(ct);
         return true;
@@ -143,7 +143,7 @@ public sealed partial class DiscoveryStore
             return false;
         }
 
-        row.Status = "done";
+        row.Status = DiscoveryTaskStatuses.Done;
         row.UpdatedAt = DateTimeOffset.UtcNow;
         await _dbContext.SaveChangesAsync(ct);
         return true;
@@ -211,7 +211,7 @@ public sealed partial class DiscoveryStore
     async Task<int> IDiscoveryStore.SumActivePlanAsync(string? excludeTaskId, CancellationToken ct)
     {
         IQueryable<DiscTaskEntity> query = _dbContext.DiscTasks
-            .Where(task => task.Status != "done" && task.Status != "failed");
+            .Where(task => task.Status != DiscoveryTaskStatuses.Done && task.Status != DiscoveryTaskStatuses.Failed);
         if (excludeTaskId is not null)
         {
             query = query.Where(task => task.Id != excludeTaskId);
diff --git a/src/core/Deal.Modules.Cards/Application/Models/CardContact.cs b/src/core/Deal.Modules.Cards/Application/Models/CardContact.cs
index 693f8b6..ab3ffa5 100644
--- a/src/core/Deal.Modules.Cards/Application/Models/CardContact.cs
+++ b/src/core/Deal.Modules.Cards/Application/Models/CardContact.cs
@@ -1,3 +1,5 @@
+using Deal.Contracts.Integrations.Models;
+
 namespace Deal.Modules.Cards.Application.Models;
 
 /// <summary>
@@ -8,7 +10,7 @@ public sealed record CardContact
     /// <summary>
     /// Тип контакта: tg/phone/email/linkedin/whatsapp/site/other.
     /// </summary>
-    public string Type { get; init; } = "other";
+    public string Type { get; init; } = CardContactTypes.Other;
 
     /// <summary>
     /// Значение: @username, +7…, name@mail, url.
diff --git a/src/core/Deal.Modules.Cards/Application/Models/CardFile.cs b/src/core/Deal.Modules.Cards/Application/Models/CardFile.cs
index ba4d9ec..807420e 100644
--- a/src/core/Deal.Modules.Cards/Application/Models/CardFile.cs
+++ b/src/core/Deal.Modules.Cards/Application/Models/CardFile.cs
@@ -23,7 +23,7 @@ public sealed record CardFile
     /// <summary>
     /// Тип контента: image/video/audio/archive/document/other
     /// </summary>
-    public string Kind { get; init; } = "other";
+    public string Kind { get; init; } = CardFileKinds.Other;
 
     public string ObjectKey { get; init; } = string.Empty;
 }
diff --git a/src/core/Deal.Modules.Cards/Application/Models/CardFileKinds.cs b/src/core/Deal.Modules.Cards/Application/Models/CardFileKinds.cs
new file mode 100644
index 0000000..af7bdb8
--- /dev/null
+++ b/src/core/Deal.Modules.Cards/Application/Models/CardFileKinds.cs
@@ -0,0 +1,37 @@
+namespace Deal.Modules.Cards.Application.Models;
+
+/// <summary>
+/// Категории вложений карточки
+/// </summary>
+public static class CardFileKinds
+{
+    /// <summary>
+    /// Изображение
+    /// </summary>
+    public const string Image = "image";
+
+    /// <summary>
+    /// Видео
+    /// </summary>
+    public const string Video = "video";
+
+    /// <summary>
+    /// Аудио
+    /// </summary>
+    public const string Audio = "audio";
+
+    /// <summary>
+    /// Документ
+    /// </summary>
+    public const string Document = "document";
+
+    /// <summary>
+    /// Архив
+    /// </summary>
+    public const string Archive = "archive";
+
+    /// <summary>
+    /// Прочее (не опознано)
+    /// </summary>
+    public const string Other = "other";
+}
diff --git a/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryCandidateKinds.cs b/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryCandidateKinds.cs
index 25040ce..c531737 100644
--- a/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryCandidateKinds.cs
+++ b/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryCandidateKinds.cs
@@ -19,4 +19,24 @@ public static class DiscoveryCandidateKinds
     /// Форум (группа с темами; topics заполняются оценкой).
     /// </summary>
     public const string Forum = "forum";
+
+    /// <summary>
+    /// Русское написание «канал» (как приходит из Telegram)
+    /// </summary>
+    public const string ChannelAliasRu = "канал";
+
+    /// <summary>
+    /// Русское написание «форум»
+    /// </summary>
+    public const string ForumAliasRu = "форум";
+
+    /// <summary>
+    /// Английское написание «chat»
+    /// </summary>
+    public const string ChatAlias = "chat";
+
+    /// <summary>
+    /// Русское написание «чат»
+    /// </summary>
+    public const string ChatAliasRu = "чат";
 }
diff --git a/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryCandidateRow.cs b/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryCandidateRow.cs
index dcdf44d..dbb4680 100644
--- a/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryCandidateRow.cs
+++ b/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryCandidateRow.cs
@@ -28,7 +28,7 @@ public sealed record DiscoveryCandidateRow
     /// <summary>
     /// Тип источника: channel|group|forum.
     /// </summary>
-    public string Kind { get; init; } = "channel";
+    public string Kind { get; init; } = DiscoveryCandidateKinds.Channel;
 
     /// <summary>
     /// Цвет источника
diff --git a/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryFitOrigins.cs b/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryFitOrigins.cs
new file mode 100644
index 0000000..14ff0e9
--- /dev/null
+++ b/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryFitOrigins.cs
@@ -0,0 +1,17 @@
+namespace Deal.Modules.Discovery.Application.Models;
+
+/// <summary>
+/// Источники решения о соответствии сообщения
+/// </summary>
+public static class DiscoveryFitOrigins
+{
+    /// <summary>
+    /// Эвристика по ключевым словам
+    /// </summary>
+    public const string Heuristic = "heuristic";
+
+    /// <summary>
+    /// Локальная ML-модель
+    /// </summary>
+    public const string Ml = "ml";
+}
diff --git a/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryLanguages.cs b/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryLanguages.cs
new file mode 100644
index 0000000..2cbeab0
--- /dev/null
+++ b/src/core/Deal.Modules.Discovery/Application/Models/DiscoveryLanguages.cs
@@ -0,0 +1,17 @@
+namespace Deal.Modules.Discovery.Application.Models;
+
+/// <summary>
+/// Языки источников Discovery
+/// </summary>
+public static class DiscoveryLanguages
+{
+    /// <summary>
+    /// Русскоязычные источники
+    /// </summary>
+    public const string Russian = "ru";
+
+    /// <summary>
+    /// Любой язык
+    /// </summary>
+    public const string Any = "any";
+}
diff --git a/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryEvaluator.cs b/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryEvaluator.cs
index 5fac7a4..574ba09 100644
--- a/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryEvaluator.cs
+++ b/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryEvaluator.cs
@@ -116,7 +116,7 @@ public sealed class DiscoveryEvaluator
         string raw = text ?? string.Empty;
         if (raw.Trim().Length < MinTextLength)
         {
-            return new DiscoveryMessageFit(false, "слишком короткое", "heuristic");
+            return new DiscoveryMessageFit(false, "слишком короткое", DiscoveryFitOrigins.Heuristic);
         }
 
         if (settingsSnapshot.GetBool(SettingsKeys.MlEnabled, SettingsDefaults.MlEnabled))
@@ -167,11 +167,11 @@ public sealed class DiscoveryEvaluator
             string kw = (keyword ?? string.Empty).Trim();
             if (kw.Length > 0 && haystack.Contains(kw.ToLowerInvariant(), StringComparison.Ordinal))
             {
-                return new DiscoveryMessageFit(true, $"совпал ключ \"{kw}\"", "heuristic");
+                return new DiscoveryMessageFit(true, $"совпал ключ \"{kw}\"", DiscoveryFitOrigins.Heuristic);
             }
         }
 
-        return new DiscoveryMessageFit(false, "нет совпадений с ключами", "heuristic");
+        return new DiscoveryMessageFit(false, "нет совпадений с ключами", DiscoveryFitOrigins.Heuristic);
     }
 
     /// <summary>
diff --git a/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryTasksService.cs b/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryTasksService.cs
index 831b150..8c45a04 100644
--- a/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryTasksService.cs
+++ b/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryTasksService.cs
@@ -65,7 +65,7 @@ public sealed class DiscoveryTasksService(IDiscoveryStore store, DiscoveryPlanGu
         await planGuard.AssertPlanAsync(planJoins, ct).ConfigureAwait(false);
         await planGuard.AssertBudgetAsync(planJoins, excludeTaskId: null, ct).ConfigureAwait(false);
 
-        string lang = draft.Lang is "ru" or "any" ? draft.Lang : "ru";
+        string lang = draft.Lang is DiscoveryLanguages.Russian or DiscoveryLanguages.Any ? draft.Lang : DiscoveryLanguages.Russian;
 
         // Дефолты threshold/sampleSize — из типизированного снимка настроек (C30: один GetAllAsync на создание).
         TenantSettingsSnapshot settingsSnapshot = await TenantSettingsSnapshot.LoadAsync(settings, ct);
@@ -230,7 +230,7 @@ public sealed class DiscoveryTasksService(IDiscoveryStore store, DiscoveryPlanGu
         int? threshold = patch.Threshold is int value ? Clamp(value, min: 1, max: 100) : null;
         int? sampleSize = patch.SampleSize is int sample ? Math.Max(1, sample) : null;
         int? minSubscribers = patch.MinSubscribers is int min ? Math.Max(0, min) : null;
-        string? lang = patch.Lang is "ru" or "any" ? patch.Lang : patch.Lang is null ? null : "ru";
+        string? lang = patch.Lang is DiscoveryLanguages.Russian or DiscoveryLanguages.Any ? patch.Lang : patch.Lang is null ? null : DiscoveryLanguages.Russian;
         string? name = patch.Name is null ? null : patch.Name.Trim();
         string? description = patch.Description;
         return new DiscoveryTaskPatch
diff --git a/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryWorkerService.Helpers.cs b/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryWorkerService.Helpers.cs
index ccf21d7..5184145 100644
--- a/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryWorkerService.Helpers.cs
+++ b/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryWorkerService.Helpers.cs
@@ -7,12 +7,16 @@ namespace Deal.Modules.Discovery.Application.Services;
 // источника (KindCode) и тексты сообщений для оценки (GroupTexts).
 public sealed partial class DiscoveryWorkerService
 {
+    // Префиксы сообщения об ошибке Telegram при FloodWait.
+    private const string FloodPrefix = "flood:";
+    private const string FloodSpacePrefix = "flood ";
+
     internal static bool IsFlood(Exception exception)
     {
         string message = exception.Message ?? string.Empty;
-        return message.StartsWith("flood:", StringComparison.OrdinalIgnoreCase)
-            || message.StartsWith("flood ", StringComparison.OrdinalIgnoreCase)
-            || message.Contains("flood:", StringComparison.OrdinalIgnoreCase);
+        return message.StartsWith(FloodPrefix, StringComparison.OrdinalIgnoreCase)
+            || message.StartsWith(FloodSpacePrefix, StringComparison.OrdinalIgnoreCase)
+            || message.Contains(FloodPrefix, StringComparison.OrdinalIgnoreCase);
     }
 
     private static string KindCode(string kind, bool isForum = false)
@@ -24,9 +28,9 @@ public sealed partial class DiscoveryWorkerService
 
         return kind.Trim().ToLowerInvariant() switch
         {
-            DiscoveryCandidateKinds.Channel or "канал" => DiscoveryCandidateKinds.Channel,
-            DiscoveryCandidateKinds.Forum or "форум" => DiscoveryCandidateKinds.Forum,
-            "chat" or "чат" => DiscoveryCandidateKinds.Group,
+            DiscoveryCandidateKinds.Channel or DiscoveryCandidateKinds.ChannelAliasRu => DiscoveryCandidateKinds.Channel,
+            DiscoveryCandidateKinds.Forum or DiscoveryCandidateKinds.ForumAliasRu => DiscoveryCandidateKinds.Forum,
+            DiscoveryCandidateKinds.ChatAlias or DiscoveryCandidateKinds.ChatAliasRu => DiscoveryCandidateKinds.Group,
             _ => DiscoveryCandidateKinds.Group,
         };
     }
diff --git a/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryWorkerService.Search.cs b/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryWorkerService.Search.cs
index e94ea57..715044b 100644
--- a/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryWorkerService.Search.cs
+++ b/src/core/Deal.Modules.Discovery/Application/Services/DiscoveryWorkerService.Search.cs
@@ -56,7 +56,7 @@ public sealed partial class DiscoveryWorkerService
         foreach (TelegramDialogEntryDto item in results)
         {
             string rawKind = (item.Kind ?? string.Empty).Trim().ToLowerInvariant();
-            if (rawKind == "чат" || rawKind == "chat")
+            if (rawKind == DiscoveryCandidateKinds.ChatAliasRu || rawKind == DiscoveryCandidateKinds.ChatAlias)
             {
                 await _log.AddAsync(taskId, DiscoveryLogEvents.Skip, $"{item.Name}: личный чат/бот", ct)
                     .ConfigureAwait(false);
diff --git a/src/core/Deal.Modules.Kanban/Application/ColumnRules/ColumnMatcher.cs b/src/core/Deal.Modules.Kanban/Application/ColumnRules/ColumnMatcher.cs
index 8ecc1ef..b6195c5 100644
--- a/src/core/Deal.Modules.Kanban/Application/ColumnRules/ColumnMatcher.cs
+++ b/src/core/Deal.Modules.Kanban/Application/ColumnRules/ColumnMatcher.cs
@@ -56,7 +56,7 @@ public static class ColumnMatcher
         bool budgetOk = !budgetEnabled || BudgetInRange.IsInRange(AmountParser.Parse(text), rules.Budget!, rates);
         bool pricesOk = !pricesEnabled || BudgetInRange.IsInRange(AmountParser.Parse(text), rules.Prices!, rates);
 
-        if (string.Equals(rules.Mode, "any", StringComparison.OrdinalIgnoreCase))
+        if (string.Equals(rules.Mode, ColumnRuleModes.Any, StringComparison.OrdinalIgnoreCase))
         {
             // «любое»: совпасть должна хотя бы одна ВКЛЮЧЁННАЯ (непустая) группа.
             return (keywords.Count > 0 && keywordsOk)
diff --git a/src/core/Deal.Modules.Kanban/Application/ColumnRules/RulesDescriber.cs b/src/core/Deal.Modules.Kanban/Application/ColumnRules/RulesDescriber.cs
index aa963c0..ba9106e 100644
--- a/src/core/Deal.Modules.Kanban/Application/ColumnRules/RulesDescriber.cs
+++ b/src/core/Deal.Modules.Kanban/Application/ColumnRules/RulesDescriber.cs
@@ -69,7 +69,7 @@ public static class RulesDescriber
             return NoRulesText;
         }
 
-        string mode = string.Equals(rules.Mode, "any", StringComparison.OrdinalIgnoreCase)
+        string mode = string.Equals(rules.Mode, ColumnRuleModes.Any, StringComparison.OrdinalIgnoreCase)
             ? AnyModePrefix
             : AllModePrefix;
         return mode + " · " + string.Join("; ", parts);
diff --git a/src/core/Deal.Modules.Kanban/Application/Models/ColumnRuleModes.cs b/src/core/Deal.Modules.Kanban/Application/Models/ColumnRuleModes.cs
new file mode 100644
index 0000000..f629f3e
--- /dev/null
+++ b/src/core/Deal.Modules.Kanban/Application/Models/ColumnRuleModes.cs
@@ -0,0 +1,17 @@
+namespace Deal.Modules.Kanban.Application.Models;
+
+/// <summary>
+/// Режимы сопоставления правил колонки
+/// </summary>
+public static class ColumnRuleModes
+{
+    /// <summary>
+    /// Достаточно любого условия
+    /// </summary>
+    public const string Any = "any";
+
+    /// <summary>
+    /// Нужны все условия
+    /// </summary>
+    public const string All = "all";
+}
diff --git a/src/core/Deal.Modules.Kanban/Application/Models/ContainerCreateDto.cs b/src/core/Deal.Modules.Kanban/Application/Models/ContainerCreateDto.cs
index 5768b09..65e5b59 100644
--- a/src/core/Deal.Modules.Kanban/Application/Models/ContainerCreateDto.cs
+++ b/src/core/Deal.Modules.Kanban/Application/Models/ContainerCreateDto.cs
@@ -15,8 +15,8 @@ public sealed record ContainerCreateDto(
     string Name,
     string Description = "",
     string? Color = null,
-    string Space = "dashboard",
-    string Kind = "board",
+    string Space = ContainerSpaces.Dashboard,
+    string Kind = ContainerKinds.Board,
     bool Suggested = false,
     ContainerRulesDto? Rules = null,
     string Note = "");
diff --git a/src/core/Deal.Modules.Kanban/Application/Models/KanbanWireKeys.cs b/src/core/Deal.Modules.Kanban/Application/Models/KanbanWireKeys.cs
new file mode 100644
index 0000000..d4e9ef6
--- /dev/null
+++ b/src/core/Deal.Modules.Kanban/Application/Models/KanbanWireKeys.cs
@@ -0,0 +1,52 @@
+namespace Deal.Modules.Kanban.Application.Models;
+
+/// <summary>
+/// Ключи wire-контракта канбана (ответы API и патчи карточки)
+/// </summary>
+public static class KanbanWireKeys
+{
+    /// <summary>
+    /// Счётчик новых карточек
+    /// </summary>
+    public const string New = "new";
+
+    /// <summary>
+    /// Счётчик в обучении ML
+    /// </summary>
+    public const string Learning = "learning";
+
+    /// <summary>
+    /// Счётчик решённых ML
+    /// </summary>
+    public const string Ml = "ml";
+
+    /// <summary>
+    /// Счётчик решённых ИИ
+    /// </summary>
+    public const string Ai = "ai";
+
+    /// <summary>
+    /// Признак свёрнутой колонки
+    /// </summary>
+    public const string Collapsed = "collapsed";
+
+    /// <summary>
+    /// Ширина колонки
+    /// </summary>
+    public const string Width = "width";
+
+    /// <summary>
+    /// Нижняя граница бюджета
+    /// </summary>
+    public const string From = "from";
+
+    /// <summary>
+    /// Верхняя граница бюджета
+    /// </summary>
+    public const string To = "to";
+
+    /// <summary>
+    /// Валюта бюджета
+    /// </summary>
+    public const string Currency = "cur";
+}
diff --git a/src/core/Deal.Modules.Kanban/Application/Services/CardsService.Selected.cs b/src/core/Deal.Modules.Kanban/Application/Services/CardsService.Selected.cs
index 34b97ab..5704379 100644
--- a/src/core/Deal.Modules.Kanban/Application/Services/CardsService.Selected.cs
+++ b/src/core/Deal.Modules.Kanban/Application/Services/CardsService.Selected.cs
@@ -361,9 +361,9 @@ public sealed partial class CardsService
             return ClearedBudget;
         }
 
-        double? from = ReadNumber(element, "from");
-        double? to = ReadNumber(element, "to");
-        string cur = ReadText(element, "cur");
+        double? from = ReadNumber(element, KanbanWireKeys.From);
+        double? to = ReadNumber(element, KanbanWireKeys.To);
+        string cur = ReadText(element, KanbanWireKeys.Currency);
         return new CardBudgetDto(from, to, cur);
     }
 
diff --git a/src/core/Deal.Modules.Pipeline/Application/Models/AiRawCardKeys.cs b/src/core/Deal.Modules.Pipeline/Application/Models/AiRawCardKeys.cs
new file mode 100644
index 0000000..6bdd196
--- /dev/null
+++ b/src/core/Deal.Modules.Pipeline/Application/Models/AiRawCardKeys.cs
@@ -0,0 +1,107 @@
+namespace Deal.Modules.Pipeline.Application.Models;
+
+/// <summary>
+/// Ключи JSON-схемы разбора карточки от ИИ
+/// </summary>
+public static class AiRawCardKeys
+{
+    /// <summary>
+    /// Заголовок
+    /// </summary>
+    public const string Title = "title";
+
+    /// <summary>
+    /// Колонка/доска
+    /// </summary>
+    public const string Board = "board";
+
+    /// <summary>
+    /// Компания
+    /// </summary>
+    public const string Company = "company";
+
+    /// <summary>
+    /// Формат работы
+    /// </summary>
+    public const string Format = "format";
+
+    /// <summary>
+    /// О задаче
+    /// </summary>
+    public const string Task = "task";
+
+    /// <summary>
+    /// Требования
+    /// </summary>
+    public const string Requirements = "requirements";
+
+    /// <summary>
+    /// Плюсы
+    /// </summary>
+    public const string Plus = "plus";
+
+    /// <summary>
+    /// Условия
+    /// </summary>
+    public const string Conditions = "conditions";
+
+    /// <summary>
+    /// Краткое описание
+    /// </summary>
+    public const string Summary = "summary";
+
+    /// <summary>
+    /// Стек
+    /// </summary>
+    public const string Stack = "stack";
+
+    /// <summary>
+    /// Бюджет
+    /// </summary>
+    public const string Budget = "budget";
+
+    /// <summary>
+    /// Контакты
+    /// </summary>
+    public const string Contacts = "contacts";
+
+    /// <summary>
+    /// Признак вакансии
+    /// </summary>
+    public const string IsVacancy = "is_vacancy";
+
+    /// <summary>
+    /// Признак определённого типа заявки
+    /// </summary>
+    public const string IsVacancyKnown = "is_vacancy_known";
+
+    /// <summary>
+    /// Признак спама
+    /// </summary>
+    public const string IsSpam = "is_spam";
+
+    /// <summary>
+    /// Значение контакта
+    /// </summary>
+    public const string Value = "value";
+
+    /// <summary>
+    /// Валюта бюджета
+    /// </summary>
+    public const string Currency = "currency";
+
+    /// <summary>
+    /// Короткий код валюты бюджета
+    /// </summary>
+    public const string CurrencyShort = "cur";
+
+    /// <summary>
+    /// Нижняя граница бюджета
+    /// </summary>
+    public const string From = "from";
+
+    /// <summary>
+    /// Верхняя граница бюджета
+    /// </summary>
+    public const string To = "to";
+}
diff --git a/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectConstants.cs b/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectConstants.cs
index f4fbddf..fb49820 100644
--- a/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectConstants.cs
+++ b/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectConstants.cs
@@ -16,20 +16,20 @@ public static class PipelineRejectConstants
     public static readonly IReadOnlyDictionary<string, string> StageLabels =
         new Dictionary<string, string>(StringComparer.Ordinal)
         {
-            ["length"] = "короткое сообщение",
-            ["stop"] = "стоп-фраза",
-            ["resume"] = "резюме соискателя",
-            ["type"] = "тип заявки",
-            ["budget"] = "нет суммы",
-            ["exclude_kw"] = "исключение: слова/технологии",
-            ["exclude_location"] = "исключение: локация/язык",
-            ["exclude_type"] = "исключение: тип",
-            ["exclude_budget"] = "исключение: бюджет",
-            ["stale"] = "устарело",
-            ["spam_ml"] = "спам (ML)",
-            ["spam_ai"] = "спам (ИИ)",
-            ["filter_ai"] = "ИИ-фильтр",
-            ["dup"] = "повтор",
+            [PipelineRejectStages.Length] = "короткое сообщение",
+            [PipelineRejectStages.Stop] = "стоп-фраза",
+            [PipelineRejectStages.Resume] = "резюме соискателя",
+            [PipelineRejectStages.Type] = "тип заявки",
+            [PipelineRejectStages.Budget] = "нет суммы",
+            [PipelineRejectStages.ExcludeKeywords] = "исключение: слова/технологии",
+            [PipelineRejectStages.ExcludeLocation] = "исключение: локация/язык",
+            [PipelineRejectStages.ExcludeType] = "исключение: тип",
+            [PipelineRejectStages.ExcludeBudget] = "исключение: бюджет",
+            [PipelineRejectStages.Stale] = "устарело",
+            [PipelineRejectStages.SpamMl] = "спам (ML)",
+            [PipelineRejectStages.SpamAi] = "спам (ИИ)",
+            [PipelineRejectStages.FilterAi] = "ИИ-фильтр",
+            [PipelineRejectStages.Duplicate] = "повтор",
         };
 
     /// <summary>
@@ -38,11 +38,11 @@ public static class PipelineRejectConstants
     public static readonly IReadOnlyDictionary<string, string> SourceLabels =
         new Dictionary<string, string>(StringComparer.Ordinal)
         {
-            ["stop"] = "правила",
-            ["ml"] = "ML",
-            ["ai"] = "ИИ",
-            ["stale"] = "система",
-            ["dup"] = "система",
+            [PipelineRejectSources.Rules] = "правила",
+            [PipelineRejectSources.Ml] = "ML",
+            [PipelineRejectSources.Ai] = "ИИ",
+            [PipelineRejectSources.System] = "система",
+            [PipelineRejectSources.Duplicate] = "система",
         };
 
     /// <summary>
diff --git a/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectSources.cs b/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectSources.cs
new file mode 100644
index 0000000..43d373b
--- /dev/null
+++ b/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectSources.cs
@@ -0,0 +1,32 @@
+namespace Deal.Modules.Pipeline.Application.Models;
+
+/// <summary>
+/// Источники решения об отсеве
+/// </summary>
+public static class PipelineRejectSources
+{
+    /// <summary>
+    /// Правила входящих (стоп-фразы, тип и т.п.)
+    /// </summary>
+    public const string Rules = "stop";
+
+    /// <summary>
+    /// Локальная ML-модель
+    /// </summary>
+    public const string Ml = "ml";
+
+    /// <summary>
+    /// ИИ-фильтр
+    /// </summary>
+    public const string Ai = "ai";
+
+    /// <summary>
+    /// Система (устаревание, дубликаты)
+    /// </summary>
+    public const string System = "system";
+
+    /// <summary>
+    /// Дубликат
+    /// </summary>
+    public const string Duplicate = "dup";
+}
diff --git a/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectStages.cs b/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectStages.cs
new file mode 100644
index 0000000..2a0a9d4
--- /dev/null
+++ b/src/core/Deal.Modules.Pipeline/Application/Models/PipelineRejectStages.cs
@@ -0,0 +1,77 @@
+namespace Deal.Modules.Pipeline.Application.Models;
+
+/// <summary>
+/// Этапы отсева входящих сообщений
+/// </summary>
+public static class PipelineRejectStages
+{
+    /// <summary>
+    /// Слишком короткое сообщение
+    /// </summary>
+    public const string Length = "length";
+
+    /// <summary>
+    /// Стоп-фраза
+    /// </summary>
+    public const string Stop = "stop";
+
+    /// <summary>
+    /// Резюме соискателя
+    /// </summary>
+    public const string Resume = "resume";
+
+    /// <summary>
+    /// Неподходящий тип заявки
+    /// </summary>
+    public const string Type = "type";
+
+    /// <summary>
+    /// Нет суммы
+    /// </summary>
+    public const string Budget = "budget";
+
+    /// <summary>
+    /// Исключение по словам/технологиям
+    /// </summary>
+    public const string ExcludeKeywords = "exclude_kw";
+
+    /// <summary>
+    /// Исключение по локации/языку
+    /// </summary>
+    public const string ExcludeLocation = "exclude_location";
+
+    /// <summary>
+    /// Исключение по типу
+    /// </summary>
+    public const string ExcludeType = "exclude_type";
+
+    /// <summary>
+    /// Исключение по бюджету
+    /// </summary>
+    public const string ExcludeBudget = "exclude_budget";
+
+    /// <summary>
+    /// Устаревшее сообщение
+    /// </summary>
+    public const string Stale = "stale";
+
+    /// <summary>
+    /// Спам по ML
+    /// </summary>
+    public const string SpamMl = "spam_ml";
+
+    /// <summary>
+    /// Спам по ИИ
+    /// </summary>
+    public const string SpamAi = "spam_ai";
+
+    /// <summary>
+    /// Отсев ИИ-фильтром
+    /// </summary>
+    public const string FilterAi = "filter_ai";
+
+    /// <summary>
+    /// Дубликат
+    /// </summary>
+    public const string Duplicate = "dup";
+}
diff --git a/src/core/Deal.Modules.Pipeline/Application/Parse/ContactsQualifier.cs b/src/core/Deal.Modules.Pipeline/Application/Parse/ContactsQualifier.cs
index d496d08..15befbe 100644
--- a/src/core/Deal.Modules.Pipeline/Application/Parse/ContactsQualifier.cs
+++ b/src/core/Deal.Modules.Pipeline/Application/Parse/ContactsQualifier.cs
@@ -1,4 +1,5 @@
 using System.Text.RegularExpressions;
+using Deal.Contracts.Integrations.Models;
 using Deal.Modules.Kanban.Application.Models;
 
 namespace Deal.Modules.Pipeline.Application.Parse;
@@ -65,12 +66,12 @@ public static class ContactsQualifier
 
     private static readonly IReadOnlyDictionary<string, int> PrimaryOrder = new Dictionary<string, int>(StringComparer.Ordinal)
     {
-        ["tg"] = 0,
-        ["phone"] = 1,
-        ["whatsapp"] = 2,
-        ["email"] = 3,
-        ["linkedin"] = 4,
-        ["site"] = 5,
+        [CardContactTypes.Telegram] = 0,
+        [CardContactTypes.Phone] = 1,
+        [CardContactTypes.WhatsApp] = 2,
+        [CardContactTypes.Email] = 3,
+        [CardContactTypes.LinkedIn] = 4,
+        [CardContactTypes.Site] = 5,
     };
 
     private const int UnknownTypePriority = 9;
@@ -93,7 +94,7 @@ public static class ContactsQualifier
             string name = s[1..].Trim();
             if (ProfileHandleRe.IsMatch(name) && !name.EndsWith(BotSuffix, StringComparison.OrdinalIgnoreCase))
             {
-                return new CardContactDto("tg", "@" + name);
+                return new CardContactDto(CardContactTypes.Telegram, "@" + name);
             }
 
             return null;
@@ -106,7 +107,7 @@ public static class ContactsQualifier
             if (!ReservedProfileNames.Contains(name.ToLowerInvariant())
                 && !name.EndsWith(BotSuffix, StringComparison.OrdinalIgnoreCase))
             {
-                return new CardContactDto("tg", "@" + name);
+                return new CardContactDto(CardContactTypes.Telegram, "@" + name);
             }
 
             return null;
@@ -114,23 +115,23 @@ public static class ContactsQualifier
 
         if (EmailRe.IsMatch(s))
         {
-            return new CardContactDto("email", s.ToLowerInvariant());
+            return new CardContactDto(CardContactTypes.Email, s.ToLowerInvariant());
         }
 
         string digits = new string(s.Where(char.IsDigit).ToArray());
         if (PhoneRe.IsMatch(s) && digits.Length is >= 10 and <= 15)
         {
-            return new CardContactDto("phone", (s.StartsWith('+') ? "+" : string.Empty) + digits);
+            return new CardContactDto(CardContactTypes.Phone, (s.StartsWith('+') ? "+" : string.Empty) + digits);
         }
 
         if (LinkedinRe.IsMatch(s))
         {
-            return new CardContactDto("linkedin", s);
+            return new CardContactDto(CardContactTypes.LinkedIn, s);
         }
 
         if (WhatsappRe.IsMatch(s))
         {
-            return new CardContactDto("whatsapp", s);
+            return new CardContactDto(CardContactTypes.WhatsApp, s);
         }
 
         if (s.StartsWith("http", StringComparison.OrdinalIgnoreCase))
@@ -144,7 +145,7 @@ public static class ContactsQualifier
                 return null;
             }
 
-            return new CardContactDto("site", s);
+            return new CardContactDto(CardContactTypes.Site, s);
         }
 
         return null;
diff --git a/src/core/Deal.Modules.Pipeline/Application/Services/AiRawCardMapper.cs b/src/core/Deal.Modules.Pipeline/Application/Services/AiRawCardMapper.cs
index ff1f111..9e93335 100644
--- a/src/core/Deal.Modules.Pipeline/Application/Services/AiRawCardMapper.cs
+++ b/src/core/Deal.Modules.Pipeline/Application/Services/AiRawCardMapper.cs
@@ -4,7 +4,9 @@ using System.Text.Json.Nodes;
 using Deal.Contracts.Integrations.Models;
 using Deal.Modules.Kanban.Application.Models;
 using Deal.Modules.Kanban.Application.Services;
+using Deal.Modules.Pipeline.Application.Models;
 using Deal.Modules.Pipeline.Application.Parse;
+using Deal.SharedKernel.Utilities;
 
 namespace Deal.Modules.Pipeline.Application.Services;
 
@@ -19,9 +21,9 @@ public static class AiRawCardMapper
 
     private const string BudgetAmountPattern = @"[0-9.,]+\s*[кkКK]?";
 
-    private const string CurrencyFieldName = "currency";
-
-    private const string CurrencyFieldNameShort = "cur";
+    // Строковые значения bool-полей, которые считаются «ложью».
+    private static readonly IReadOnlySet<string> FalsyAnswerValues =
+        new HashSet<string>(StringComparer.Ordinal) { "0", BoolText.False, "no", "нет", "null", "none" };
 
     // Регулярное выражение числа бюджета: число + необязательные «к»/валюта-суффиксы.
     private static readonly System.Text.RegularExpressions.Regex BudgetNumRe =
@@ -39,7 +41,7 @@ public static class AiRawCardMapper
         JsonObject? root = JsonNode.Parse(json) as JsonObject
             ?? throw new JsonException("Ответ ИИ-классификатора — не JSON-объект (ok=true, но схема нарушена).");
 
-        string title = MessageTextCleaner.CleanShort(ReadRawString(root, "title"), MaxTitleCodePoints);
+        string title = MessageTextCleaner.CleanShort(ReadRawString(root, AiRawCardKeys.Title), MaxTitleCodePoints);
         if (title.Length == 0)
         {
             title = MessageTextCleaner.CleanShort(text, MaxFallbackTextCodePoints); // python L455 fallback
@@ -49,7 +51,7 @@ public static class AiRawCardMapper
         AiBudgetDto? budget = ReadBudget(root);
         IReadOnlyList<AiContactDto> contacts = ReadContacts(root, text);
 
-        string? board = ReadRawString(root, "board").Trim();
+        string? board = ReadRawString(root, AiRawCardKeys.Board).Trim();
         if (board.Length == 0)
         {
             board = null;
@@ -57,19 +59,19 @@ public static class AiRawCardMapper
 
         return new AiParsedCardDto(
             Title: title,
-            Company: ReadNullableString(root, "company"),
-            Format: ReadNullableString(root, "format"),
-            Task: ReadNullableString(root, "task"),
-            Requirements: ReadItems(root, "requirements"),
-            Plus: ReadItems(root, "plus"),
-            Conditions: ReadNullableString(root, "conditions"),
-            Summary: ReadNullableString(root, "summary"),
+            Company: ReadNullableString(root, AiRawCardKeys.Company),
+            Format: ReadNullableString(root, AiRawCardKeys.Format),
+            Task: ReadNullableString(root, AiRawCardKeys.Task),
+            Requirements: ReadItems(root, AiRawCardKeys.Requirements),
+            Plus: ReadItems(root, AiRawCardKeys.Plus),
+            Conditions: ReadNullableString(root, AiRawCardKeys.Conditions),
+            Summary: ReadNullableString(root, AiRawCardKeys.Summary),
             Stack: stack,
             Budget: budget,
             Contacts: contacts,
-            IsVacancy: ReadBool(root, "is_vacancy"),
-            IsVacancyKnown: ReadBool(root, "is_vacancy_known"), // false — воркер стемпит true после успешного ИИ
-            IsSpam: ReadBool(root, "is_spam"),
+            IsVacancy: ReadBool(root, AiRawCardKeys.IsVacancy),
+            IsVacancyKnown: ReadBool(root, AiRawCardKeys.IsVacancyKnown), // false — воркер стемпит true после успешного ИИ
+            IsSpam: ReadBool(root, AiRawCardKeys.IsSpam),
             Board: board);
     }
 
@@ -114,7 +116,7 @@ public static class AiRawCardMapper
         if (value.TryGetValue<string>(out string? text))
         {
             string lower = (text ?? string.Empty).Trim().ToLowerInvariant();
-            return lower.Length > 0 && lower is not ("0" or "false" or "no" or "нет" or "null" or "none");
+            return lower.Length > 0 && !FalsyAnswerValues.Contains(lower);
         }
 
         return false;
@@ -147,7 +149,7 @@ public static class AiRawCardMapper
 
     private static IReadOnlyList<string> ReadStack(JsonObject root)
     {
-        if (!root.TryGetPropertyValue("stack", out JsonNode? node) || node is null)
+        if (!root.TryGetPropertyValue(AiRawCardKeys.Stack, out JsonNode? node) || node is null)
         {
             return Array.Empty<string>();
         }
@@ -161,19 +163,19 @@ public static class AiRawCardMapper
 
     private static AiBudgetDto? ReadBudget(JsonObject root)
     {
-        if (!root.TryGetPropertyValue("budget", out JsonNode? node) || node is not JsonObject budget)
+        if (!root.TryGetPropertyValue(AiRawCardKeys.Budget, out JsonNode? node) || node is not JsonObject budget)
         {
             return null;
         }
 
-        string currency = ReadRawString(budget, CurrencyFieldName);
+        string currency = ReadRawString(budget, AiRawCardKeys.Currency);
         if (currency.Length == 0)
         {
-            currency = ReadRawString(budget, CurrencyFieldNameShort); // ai.py L327: currency или cur
+            currency = ReadRawString(budget, AiRawCardKeys.CurrencyShort); // ai.py L327: currency или cur
         }
 
-        double? from = ParseBudgetBound(budget, "from");
-        double? to = ParseBudgetBound(budget, "to");
+        double? from = ParseBudgetBound(budget, AiRawCardKeys.From);
+        double? to = ParseBudgetBound(budget, AiRawCardKeys.To);
         CardBudgetDto? normalized = BudgetNormalizer.Normalize(new BudgetRangeDto(from, to, currency));
         return normalized is null
             ? null
@@ -226,7 +228,7 @@ public static class AiRawCardMapper
     private static IReadOnlyList<AiContactDto> ReadContacts(JsonObject root, string text)
     {
         List<string> candidates = new();
-        if (root.TryGetPropertyValue("contacts", out JsonNode? node) && node is not null)
+        if (root.TryGetPropertyValue(AiRawCardKeys.Contacts, out JsonNode? node) && node is not null)
         {
             if (node is JsonValue)
             {
@@ -245,7 +247,7 @@ public static class AiRawCardMapper
                             break;
                         case JsonObject contactObject:
                         {
-                            string value = ReadRawString(contactObject, "value"); // python L402–403: dict.get("value")
+                            string value = ReadRawString(contactObject, AiRawCardKeys.Value);
                             if (value.Length > 0)
                             {
                                 candidates.Add(value);
diff --git a/src/core/Deal.Modules.Pipeline/Application/Services/MlReviewService.cs b/src/core/Deal.Modules.Pipeline/Application/Services/MlReviewService.cs
index 14c2426..9ba38bf 100644
--- a/src/core/Deal.Modules.Pipeline/Application/Services/MlReviewService.cs
+++ b/src/core/Deal.Modules.Pipeline/Application/Services/MlReviewService.cs
@@ -220,7 +220,7 @@ public sealed class MlReviewService(
         {
             // TrashCardAsync(teach:true) сам шлёт обучающий сигнал «спам» — второй сигнал не нужен.
             CardDto? trashed = await cards.TrashCardAsync(card.Id, teach: true, ct);
-            return new MlApplyResult(null, Ok: true, Learned: true, Moved: "trash", LeadId: trashed?.Id ?? card.Id);
+            return new MlApplyResult(null, Ok: true, Learned: true, Moved: CardIds.Trash, LeadId: trashed?.Id ?? card.Id);
         }
 
         await mlClient.PushAsync(text, MlLearningLabels.Spam, UserPushWeight, ct);
diff --git a/src/core/Deal.Modules.Pipeline/Application/Services/PipelineProcessingService.cs b/src/core/Deal.Modules.Pipeline/Application/Services/PipelineProcessingService.cs
index 2a79770..5969fc2 100644
--- a/src/core/Deal.Modules.Pipeline/Application/Services/PipelineProcessingService.cs
+++ b/src/core/Deal.Modules.Pipeline/Application/Services/PipelineProcessingService.cs
@@ -47,16 +47,16 @@ public sealed class PipelineProcessingService(
     // Вес снятия метки «спам»: реальное действие пользователя «это не спам» (delta=−1.0).
     private const double SpamUnlearnDelta = -1.0;
 
-    private const string DuplicateSource = "dup";
+    private const string DuplicateSource = PipelineRejectSources.Duplicate;
 
     // Имя сущности для текста ошибки «не найдено».
     private const string RejectedEntityName = "Запись отсева";
 
     private static readonly HashSet<string> SpamStages = new(StringComparer.Ordinal)
     {
-        "spam_ml",
-        "spam_ai",
-        "filter_ai",
+        PipelineRejectStages.SpamMl,
+        PipelineRejectStages.SpamAi,
+        PipelineRejectStages.FilterAi,
     };
 
 
diff --git a/src/core/Deal.Modules.Settings/Application/Models/SettingsFieldKeys.cs b/src/core/Deal.Modules.Settings/Application/Models/SettingsFieldKeys.cs
new file mode 100644
index 0000000..5586f9f
--- /dev/null
+++ b/src/core/Deal.Modules.Settings/Application/Models/SettingsFieldKeys.cs
@@ -0,0 +1,37 @@
+namespace Deal.Modules.Settings.Application.Models;
+
+/// <summary>
+/// Ключи полей настроек провайдеров/промптов
+/// </summary>
+public static class SettingsFieldKeys
+{
+    /// <summary>
+    /// API-ключ провайдера
+    /// </summary>
+    public const string ApiKey = "apiKey";
+
+    /// <summary>
+    /// Базовый URL провайдера
+    /// </summary>
+    public const string BaseUrl = "baseUrl";
+
+    /// <summary>
+    /// Модель провайдера
+    /// </summary>
+    public const string Model = "model";
+
+    /// <summary>
+    /// Название пользовательского промпта
+    /// </summary>
+    public const string Name = "name";
+
+    /// <summary>
+    /// Текст пользовательского промпта
+    /// </summary>
+    public const string Prompt = "prompt";
+
+    /// <summary>
+    /// Описание пользовательского промпта
+    /// </summary>
+    public const string Description = "description";
+}
diff --git a/src/core/Deal.Modules.Settings/Application/Services/SettingsService.PatchMyPrompts.cs b/src/core/Deal.Modules.Settings/Application/Services/SettingsService.PatchMyPrompts.cs
index 06d379d..e695acf 100644
--- a/src/core/Deal.Modules.Settings/Application/Services/SettingsService.PatchMyPrompts.cs
+++ b/src/core/Deal.Modules.Settings/Application/Services/SettingsService.PatchMyPrompts.cs
@@ -26,14 +26,14 @@ public sealed partial class SettingsService
                 continue;
             }
 
-            string name = ReadTrimmedField(item, "name", PromptNameMaxLength);
-            string prompt = ReadTrimmedField(item, "prompt", PromptTextMaxLength);
+            string name = ReadTrimmedField(item, SettingsFieldKeys.Name, PromptNameMaxLength);
+            string prompt = ReadTrimmedField(item, SettingsFieldKeys.Prompt, PromptTextMaxLength);
             if (name.Length == 0 || prompt.Length == 0)
             {
                 continue; // пустые name/prompt — дроп
             }
 
-            string description = ReadTrimmedField(item, "description", PromptDescriptionMaxLength);
+            string description = ReadTrimmedField(item, SettingsFieldKeys.Description, PromptDescriptionMaxLength);
             string id = ReadPromptId(item);
             clean.Add(new MyPromptDto(id, name, description, prompt));
         }
diff --git a/src/core/Deal.Modules.Settings/Application/Services/SettingsService.PatchSecrets.cs b/src/core/Deal.Modules.Settings/Application/Services/SettingsService.PatchSecrets.cs
index 1576558..975eb36 100644
--- a/src/core/Deal.Modules.Settings/Application/Services/SettingsService.PatchSecrets.cs
+++ b/src/core/Deal.Modules.Settings/Application/Services/SettingsService.PatchSecrets.cs
@@ -46,19 +46,19 @@ public sealed partial class SettingsService
             // каталогом — иначе тенант мог бы перенаправить ключ/запрос на произвольный внутренний адрес
             // (SSRF, Security review) и проверка подключения ушла бы на него.
             bool baseUrlMutable = meta is { Local: true } || providerId == CustomProviderId;
-            if (baseUrlMutable && TryReadFieldText(entry, "baseUrl", out string newBaseUrl))
+            if (baseUrlMutable && TryReadFieldText(entry, SettingsFieldKeys.BaseUrl, out string newBaseUrl))
             {
                 baseUrl = newBaseUrl;
             }
 
-            if (TryReadFieldText(entry, "model", out string newModel))
+            if (TryReadFieldText(entry, SettingsFieldKeys.Model, out string newModel))
             {
                 model = newModel;
             }
 
             // apiKey: непустой, ≥8 симв., без префикса enc: и без маски (содержит "…") → шифруется;
             // иначе (пустой/маска) ключ не меняется.
-            if (TryReadFieldText(entry, "apiKey", out string newKey)
+            if (TryReadFieldText(entry, SettingsFieldKeys.ApiKey, out string newKey)
                 && newKey.Length >= ApiKeyMinLength
                 && !newKey.StartsWith(EncryptedValuePrefix, StringComparison.Ordinal)
                 && !newKey.Contains(MaskEllipsis, StringComparison.Ordinal))
diff --git a/src/core/Deal.Modules.Settings/Application/Services/SettingsService.ReadMerge.cs b/src/core/Deal.Modules.Settings/Application/Services/SettingsService.ReadMerge.cs
index f2865d3..76f5e0f 100644
--- a/src/core/Deal.Modules.Settings/Application/Services/SettingsService.ReadMerge.cs
+++ b/src/core/Deal.Modules.Settings/Application/Services/SettingsService.ReadMerge.cs
@@ -1,6 +1,7 @@
 using System.Globalization;
 using System.Text.Json;
 using Deal.Modules.Settings.Application.Models;
+using Deal.SharedKernel.Utilities;
 
 namespace Deal.Modules.Settings.Application.Services;
 
@@ -82,11 +83,11 @@ public sealed partial class SettingsService
                 return true;
 
             case JsonValueKind.True:
-                text = "true";
+                text = BoolText.True;
                 return true;
 
             case JsonValueKind.False:
-                text = "false";
+                text = BoolText.False;
                 return true;
 
             default:
@@ -218,9 +219,9 @@ public sealed partial class SettingsService
                     continue;
                 }
 
-                string apiKey = TryReadFieldText(provider.Value, "apiKey", out string storedKey) ? storedKey : string.Empty;
-                string baseUrl = TryReadFieldText(provider.Value, "baseUrl", out string storedBase) ? storedBase : string.Empty;
-                string model = TryReadFieldText(provider.Value, "model", out string storedModel) ? storedModel : string.Empty;
+                string apiKey = TryReadFieldText(provider.Value, SettingsFieldKeys.ApiKey, out string storedKey) ? storedKey : string.Empty;
+                string baseUrl = TryReadFieldText(provider.Value, SettingsFieldKeys.BaseUrl, out string storedBase) ? storedBase : string.Empty;
+                string model = TryReadFieldText(provider.Value, SettingsFieldKeys.Model, out string storedModel) ? storedModel : string.Empty;
                 merged[provider.Name] = new AiConfigSetting(apiKey, baseUrl, model);
             }
         }
diff --git a/src/core/Deal.Modules.Tenants/Application/Services/TenantAdminService.cs b/src/core/Deal.Modules.Tenants/Application/Services/TenantAdminService.cs
index c6965b1..dd0fb19 100644
--- a/src/core/Deal.Modules.Tenants/Application/Services/TenantAdminService.cs
+++ b/src/core/Deal.Modules.Tenants/Application/Services/TenantAdminService.cs
@@ -73,7 +73,7 @@ public sealed class TenantAdminService(
                 Id: ownerUserId,
                 Login: normalizedEmail,
                 TenantId: tenantId,
-                Status: "active",
+                Status: TenantStatuses.Active,
                 PasswordHash: passwordHasher.Hash(initialPassword)),
             ct);
 
diff --git a/src/core/Deal.SharedKernel/Observability/DealMetrics.cs b/src/core/Deal.SharedKernel/Observability/DealMetrics.cs
index 137dabe..0d2290d 100644
--- a/src/core/Deal.SharedKernel/Observability/DealMetrics.cs
+++ b/src/core/Deal.SharedKernel/Observability/DealMetrics.cs
@@ -54,6 +54,51 @@ public static class DealMetrics
     /// </summary>
     public const string AiBudgetUsedRatioName = "deal.ai.budget.used.ratio";
 
+    /// <summary>
+    /// Имя метрики успешных вызовов платного ИИ
+    /// </summary>
+    public const string AiCallsName = "deal.ai.calls";
+
+    /// <summary>
+    /// Имя метрики токенов платного ИИ
+    /// </summary>
+    public const string AiTokensName = "deal.ai.tokens";
+
+    /// <summary>
+    /// Имя метрики вызовов локального ML
+    /// </summary>
+    public const string MlCallsName = "deal.ml.calls";
+
+    /// <summary>
+    /// Имя метрики оценки токенов локального ML
+    /// </summary>
+    public const string MlTokensName = "deal.ml.tokens";
+
+    /// <summary>
+    /// Имя метрики событий аудита
+    /// </summary>
+    public const string AuditEventsName = "deal.audit.events";
+
+    /// <summary>
+    /// Имя метрики событий подозрительной активности
+    /// </summary>
+    public const string SecurityEventsName = "deal.security.suspicious";
+
+    /// <summary>
+    /// Имя метрики глубины очереди пайплайна
+    /// </summary>
+    public const string PipelineQueueDepthName = "deal.pipeline.queue.depth";
+
+    /// <summary>
+    /// Имя метрики глубины очереди обучения ML
+    /// </summary>
+    public const string MlOutboxDepthName = "deal.ml.outbox.depth";
+
+    /// <summary>
+    /// Имя метрики активных сессий
+    /// </summary>
+    public const string ActiveSessionsName = "deal.sessions.active";
+
     // Meter прикладных метрик (static — один на процесс, как того требует System.Diagnostics.Metrics).
     private static readonly Meter Meter = new(MeterName);
 
@@ -61,44 +106,44 @@ public static class DealMetrics
     /// Успешные вызовы платного ИИ
     /// </summary>
     public static readonly Counter<long> AiCalls =
-        Meter.CreateCounter<long>("deal.ai.calls", description: "Успешные вызовы платного ИИ (ai-service).");
+        Meter.CreateCounter<long>(AiCallsName, description: "Успешные вызовы платного ИИ (ai-service).");
 
     /// <summary>
     /// Токены платного ИИ по видам
     /// </summary>
     public static readonly Counter<long> AiTokens =
-        Meter.CreateCounter<long>("deal.ai.tokens", description: "Токены платных ИИ-вызовов (prompt/completion).");
+        Meter.CreateCounter<long>(AiTokensName, description: "Токены платных ИИ-вызовов (prompt/completion).");
 
     /// <summary>
     /// Вызовы локального ML
     /// </summary>
     public static readonly Counter<long> MlCalls =
-        Meter.CreateCounter<long>("deal.ml.calls", description: "Вызовы локального ML-предсказания.");
+        Meter.CreateCounter<long>(MlCallsName, description: "Вызовы локального ML-предсказания.");
 
     /// <summary>
     /// Оценка токенов локальных ML-вызовов
     /// </summary>
     public static readonly Counter<long> MlTokens =
-        Meter.CreateCounter<long>("deal.ml.tokens", description: "Оценка токенов локальных ML-вызовов.");
+        Meter.CreateCounter<long>(MlTokensName, description: "Оценка токенов локальных ML-вызовов.");
 
     /// <summary>
     /// События аудита по типам и акторам
     /// </summary>
     public static readonly Counter<long> AuditEvents =
-        Meter.CreateCounter<long>("deal.audit.events", description: "Записи аудита по типам и акторам.");
+        Meter.CreateCounter<long>(AuditEventsName, description: "Записи аудита по типам и акторам.");
 
     /// <summary>
     /// События подозрительной активности по видам
     /// </summary>
     public static readonly Counter<long> SecurityEvents =
-        Meter.CreateCounter<long>("deal.security.suspicious", description: "События подозрительной активности по видам (rate_limit, login_blocked).");
+        Meter.CreateCounter<long>(SecurityEventsName, description: "События подозрительной активности по видам (rate_limit, login_blocked).");
 
     /// <summary>
     /// Суммарная глубина очереди пайплайна
     /// </summary>
     public static readonly ObservableGauge<long> PipelineQueueDepth =
         Meter.CreateObservableGauge(
-            "deal.pipeline.queue.depth",
+            PipelineQueueDepthName,
             (Func<long>)(() => (long)Interlocked.Read(ref DealMetrics._pipelineQueueDepth)),
             description: "Суммарная глубина очереди пайплайна (new+filtered) по всем тенантам.");
 
@@ -107,7 +152,7 @@ public static class DealMetrics
     /// </summary>
     public static readonly ObservableGauge<long> MlOutboxDepth =
         Meter.CreateObservableGauge(
-            "deal.ml.outbox.depth",
+            MlOutboxDepthName,
             (Func<long>)(() => (long)Interlocked.Read(ref DealMetrics._mlOutboxDepth)),
             description: "Суммарная глубина очереди обучения ML (MlOutbox) по всем тенантам.");
 
@@ -116,7 +161,7 @@ public static class DealMetrics
     /// </summary>
     public static readonly ObservableGauge<long> ActiveSessions =
         Meter.CreateObservableGauge(
-            "deal.sessions.active",
+            ActiveSessionsName,
             (Func<long>)(() => (long)Interlocked.Read(ref DealMetrics._activeSessions)),
             description: "Активные непросроченные сессии пользователей и операторов.");
 
diff --git a/src/core/Deal.SharedKernel/Utilities/BoolText.cs b/src/core/Deal.SharedKernel/Utilities/BoolText.cs
new file mode 100644
index 0000000..17e2f64
--- /dev/null
+++ b/src/core/Deal.SharedKernel/Utilities/BoolText.cs
@@ -0,0 +1,17 @@
+namespace Deal.SharedKernel.Utilities;
+
+/// <summary>
+/// Строковые представления булевых значений
+/// </summary>
+public static class BoolText
+{
+    /// <summary>
+    /// Истина
+    /// </summary>
+    public const string True = "true";
+
+    /// <summary>
+    /// Ложь
+    /// </summary>
+    public const string False = "false";
+}