Unity U3: Add CollectionResponse.cs (#48)

unity-client/Assets/Scripts/Models/CollectionResponse.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace CommanderAILab.Models
+{
+    /// <summary>Paginated collection list from GET /api/collection.</summary>
+    [Serializable]
+    public class CollectionResponse
+    {
+        [JsonProperty("cards")] public List<CardModel> cards;
+        [JsonProperty("total")] public int total;
+        [JsonProperty("page")] public int page;
+        [JsonProperty("per_page")] public int perPage;
+
+        public override string ToString() => $"Collection: {total} cards (page {page})";
+    }
+}