* Extended functionalities

* Added different UIs

MealPlan.Api/Models/RecipeGeneratorSession.cs

@@ -0,0 +1,45 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace MealPlan.Api.Models;
+
+[Table("RecipeGeneratorSessions")]
+public class RecipeGeneratorSession
+{
+    [Column("Id")]
+    public int Id { get; set; }
+
+    [Column("UserId")]
+    public Guid UserId { get; set; }
+
+    [Column("Status")]
+    [MaxLength(32)]
+    public string Status { get; set; } = RecipeGeneratorStatuses.Draft;
+
+    [Column("ConstraintsJson")]
+    public string ConstraintsJson { get; set; } = "{}";
+
+    [Column("DraftJson")]
+    public string? DraftJson { get; set; }
+
+    [Column("SavedRecipeId")]
+    public int? SavedRecipeId { get; set; }
+
+    [Column("GenerationVersion")]
+    public int GenerationVersion { get; set; } = 1;
+
+    [Column("CreatedAt")]
+    public DateTime CreatedAt { get; set; }
+
+    [Column("UpdatedAt")]
+    public DateTime? UpdatedAt { get; set; }
+
+    public Recipe? SavedRecipe { get; set; }
+}
+
+public static class RecipeGeneratorStatuses
+{
+    public const string Draft = "draft";
+    public const string Saved = "saved";
+    public const string Abandoned = "abandoned";
+}