Add authentication controller.

Marechai.Data/Models/AuthRequest.cs

@@ -0,0 +1,16 @@
+using System.ComponentModel.DataAnnotations;
+using System.Text.Json.Serialization;
+
+namespace Marechai.Data.Models;
+
+public sealed record AuthRequest
+{
+    [Required]
+    [EmailAddress]
+    [JsonPropertyName("email")]
+    public string Email { get; set; } = null!;
+    [Required]
+    [DataType(DataType.Password)]
+    [JsonPropertyName("password")]
+    public string Password { get; set; } = null!;
+}

Marechai.Data/Models/AuthResponse.cs

@@ -0,0 +1,13 @@
+using System.Text.Json.Serialization;
+
+namespace Marechai.Data.Models;
+
+public sealed record AuthResponse
+{
+    [JsonPropertyName("succeeded")]
+    public bool Succeeded { get; set; }
+    [JsonPropertyName("message")]
+    public string Message { get; set; } = null!;
+    [JsonPropertyName("token")]
+    public string Token { get; set; } = null!;
+}