feat(dal): Модели и сервисы для работы с Task

PARR.DAL/Models/Task/TaskError.cs

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+using Microsoft.EntityFrameworkCore;
+using PARR.DAL.Context;
+using PARR.DAL.Models.Base;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace PARR.DAL.Models.Task
+{
+    [Table("Errors", Schema = DataContextSettings.Task)]
+    [Comment("Таблица ошибок заданий")]
+    public class TaskError : IBase
+    {
+        [Key]
+        public Guid Id { get; set; }
+
+        public DateTimeOffset DateCreated { get; set; }
+
+        [NotMapped]
+        public DateTimeOffset? DateModified { get; set; }
+
+        public Guid TaskId { get; set; }
+
+        public int AttemptNumber { get; set; }
+
+        public required string ErrorMessage { get; set; }
+
+        public string? StackTrace { get; set; }
+
+        [ForeignKey(nameof(TaskId))]
+        public Task? Task { get; set; }
+    }
+}