feat: write a dto in a separate project

ApiDto/Responses/CampusDetailsResponse.cs

@@ -0,0 +1,27 @@
+namespace Mirea.Api.Dto.Responses;
+
+/// <summary>
+/// Represents detailed information about a campus.
+/// </summary>
+public class CampusDetailsResponse
+{
+    /// <summary>
+    /// Gets or sets the unique identifier of the campus.
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the code name of the campus.
+    /// </summary>
+    public required string CodeName { get; set; }
+
+    /// <summary>
+    /// Gets or sets the full name of the campus (optional).
+    /// </summary>
+    public string? FullName { get; set; }
+
+    /// <summary>
+    /// Gets or sets the address of the campus (optional).
+    /// </summary>
+    public string? Address { get; set; }
+}