Вытащил солюшен на уровень выше, чтобы прощё было дотнетить

Domains/VisaApplicationDomain/VisaApplication.cs

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+using Domains.ApplicantDomain;
+
+namespace Domains.VisaApplicationDomain;
+
+/// Model of visit request
+public class VisaApplication : IEntity
+{
+    /// Unique identifier of <see cref="VisaApplication"/>
+    public Guid Id { get; private set; } = Guid.NewGuid();
+
+    /// Identifier of the <see cref="Applicant"/>
+    public Guid ApplicantId { get; set; }
+
+    /// Status of application
+    public ApplicationStatus Status { get; set; }
+
+    /// <inheritdoc cref="Domains.VisaApplicationDomain.ReentryPermit"/>
+    /// <remarks>always null if <see cref="Applicant"/> is not a non-resident</remarks>
+    public ReentryPermit? ReentryPermit { get; set; }
+
+    /// Country that <see cref="Applicant"/> wants to visit
+    public string DestinationCountry { get; set; } = null!;
+
+    /// List of <see cref="PastVisa"/> that applicant had before
+    public List<PastVisa> PastVisas { get; set; } = null!;
+
+    /// Permission to enter the destination country of <see cref="Applicant"/>
+    /// <remarks>always null if <see cref="DestinationCountry"/> is Schengen</remarks>
+    public PermissionToDestCountry? PermissionToDestCountry { get; set; }
+
+    public List<PastVisit> PastVisits { get; set; } = null!;
+
+    /// <see cref="Domains.VisaApplicationDomain.VisaCategory"/>
+    public VisaCategory VisaCategory { get; set; }
+
+    /// Is for group
+    public bool ForGroup { get; set; }
+
+    /// <see cref="Domains.VisaApplicationDomain.RequestedNumberOfEntries"/>
+    public RequestedNumberOfEntries RequestedNumberOfEntries { get; set; }
+
+    /// When application was created
+    public DateTime RequestDate { get; set; }
+
+    /// Valid days requested
+    public int ValidDaysRequested { get; set; }
+}