Создание таблиц для цепочек подтверждения (#1)

Co-authored-by: gorbenko.pavel <gorbenko.pavel@tansu.kz>
Reviewed-on: http://git.tnsu.kz/gorbenko.pavel/tnsu-approval-route/pulls/1

backend/src/Tnsu.ApprovalRoute.Domain/Entities/RequestType.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace Tnsu.ApprovalRoute.Domain.Entities;
+
+public class RequestType
+{
+    public Guid Id { get; set; } = Guid.NewGuid();
+    public string Name { get; set; } = string.Empty;
+    public string PageUrl { get; set; } = string.Empty;
+
+    public ICollection<Route> Routes { get; set; } = new List<Route>();
+}

backend/src/Tnsu.ApprovalRoute.Domain/Entities/Route.cs

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+using Tnsu.ApprovalRoute.Domain.Enums;
+
+namespace Tnsu.ApprovalRoute.Domain.Entities;
+
+public class Route
+{
+    public Guid Id { get; set; } = Guid.NewGuid();
+    public RouteType RouteType { get; set; } = RouteType.Sequential;
+    public Guid RequestTypeId { get; set; }
+
+    // Внешние справочники (1С/ZUP) — хранятся как ссылки без FK в этой БД.
+    public Guid DepartmentId { get; set; }
+    public Guid CompanyId { get; set; }
+    public bool ByProject { get; set; }
+
+    public bool RequiresControl { get; set; }
+
+    public RequestType? RequestType { get; set; }
+    public ICollection<RouteStep> Steps { get; set; } = new List<RouteStep>();
+}

backend/src/Tnsu.ApprovalRoute.Domain/Entities/RouteStep.cs

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+using Tnsu.ApprovalRoute.Domain.Enums;
+
+namespace Tnsu.ApprovalRoute.Domain.Entities;
+
+public class RouteStep
+{
+    public Guid Id { get; set; } = Guid.NewGuid();
+    public int OrderNo { get; set; }
+
+    // Внешняя ссылка на пользователя (1С/ZUP) — без локальной таблицы Users.
+    public string ExecutorEmail { get; set; } = string.Empty;
+    public string Position { get; set; } = string.Empty;
+    public ProjectRole ProjectRole { get; set; } = ProjectRole.None;
+
+    public RouteStepStatus Status { get; set; } = RouteStepStatus.Draft;
+    public Guid RouteId { get; set; }
+    public bool AllowReassignToOtherApprovers { get; set; }
+
+    public Route? Route { get; set; }
+}

backend/src/Tnsu.ApprovalRoute.Domain/Enums/ProjectRole.cs

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+namespace Tnsu.ApprovalRoute.Domain.Enums;
+
+public enum ProjectRole
+{
+    None,
+    Manager,
+    Engineer,
+    Observer
+}

backend/src/Tnsu.ApprovalRoute.Domain/Enums/RouteStepStatus.cs

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+namespace Tnsu.ApprovalRoute.Domain.Enums;
+
+public enum RouteStepStatus
+{
+    None,
+    Draft,
+    OnApproval,
+    Approved,
+    InExecution,
+    Completed,
+    Returned,
+    Closed
+}

backend/src/Tnsu.ApprovalRoute.Domain/Enums/RouteType.cs

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+namespace Tnsu.ApprovalRoute.Domain.Enums;
+
+public enum RouteType
+{
+    None,
+    Parallel,
+    Sequential
+}