Добавил домен

backend/UniVerse.Domain/Entities/Location.cs

@@ -0,0 +1,15 @@
+namespace UniVerse.Domain.Entities;
+
+public class Location
+{
+    public int Id { get; set; }
+    public string Name { get; set; } = string.Empty;
+    public string? Building { get; set; }
+    public string? Room { get; set; }
+    public string? Address { get; set; }
+    public string? ExternalId { get; set; }
+    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+
+    // Navigation properties
+    public ICollection<Lecture> Lectures { get; set; } = new List<Lecture>();
+}