feat: add request for create user

ApiDto/Requests/CreateUserRequest.cs

@@ -0,0 +1,36 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Mirea.Api.Dto.Requests;
+
+/// <summary>
+/// Request model for creating a user.
+/// </summary>
+public class CreateUserRequest
+{
+    /// <summary>
+    /// Gets or sets the email address of the user.
+    /// </summary>
+    /// <remarks>
+    /// The email address is a required field.
+    /// </remarks>
+    [Required]
+    public required string Email { get; set; }
+
+    /// <summary>
+    /// Gets or sets the username of the user.
+    /// </summary>
+    /// <remarks>
+    /// The username is a required field.
+    /// </remarks>
+    [Required]
+    public required string Username { get; set; }
+
+    /// <summary>
+    /// Gets or sets the password of the user.
+    /// </summary>
+    /// <remarks>
+    /// The password is a required field.
+    /// </remarks>
+    [Required]
+    public required string Password { get; set; }
+}