Prebuilt deck purchasing and fixes

SVSim.EmulatedEntrypoint/Models/Dtos/Requests/BuildDeck/BuildDeckBuyRequest.cs

@@ -0,0 +1,21 @@
+using System.Text.Json.Serialization;
+using MessagePack;
+using SVSim.EmulatedEntrypoint.Models.Dtos.Requests;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos.Requests.BuildDeck;
+
+/// <summary>
+/// /build_deck/buy request body. sales_type is ShopCommonUtility.SalesType:
+/// 0=free, 1=crystal, 2=rupy, 3=ticket (v1: 3 returns 501).
+/// </summary>
+[MessagePackObject]
+public class BuildDeckBuyRequest : BaseRequest
+{
+    [JsonPropertyName("product_id")]
+    [Key("product_id")]
+    public int ProductId { get; set; }
+
+    [JsonPropertyName("sales_type")]
+    [Key("sales_type")]
+    public int SalesType { get; set; }
+}

SVSim.EmulatedEntrypoint/Models/Dtos/Requests/BuildDeck/BuildDeckGetPurchaseCountRequest.cs

@@ -0,0 +1,13 @@
+using System.Text.Json.Serialization;
+using MessagePack;
+using SVSim.EmulatedEntrypoint.Models.Dtos.Requests;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos.Requests.BuildDeck;
+
+[MessagePackObject]
+public class BuildDeckGetPurchaseCountRequest : BaseRequest
+{
+    [JsonPropertyName("product_id")]
+    [Key("product_id")]
+    public int ProductId { get; set; }
+}

SVSim.EmulatedEntrypoint/Models/Dtos/Requests/BuildDeck/BuildDeckInfoRequest.cs

@@ -0,0 +1,17 @@
+using System.Text.Json.Serialization;
+using MessagePack;
+using SVSim.EmulatedEntrypoint.Models.Dtos.Requests;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos.Requests.BuildDeck;
+
+/// <summary>
+/// /build_deck/info request body. <c>add_series_id == 0</c> means "return all"; non-zero filters
+/// to the single matching series (used by the client to re-fetch after a purchase).
+/// </summary>
+[MessagePackObject]
+public class BuildDeckInfoRequest : BaseRequest
+{
+    [JsonPropertyName("add_series_id")]
+    [Key("add_series_id")]
+    public int AddSeriesId { get; set; }
+}

SVSim.EmulatedEntrypoint/Models/Dtos/Requests/LeaderSkin/LeaderSkinSetRequest.cs

@@ -0,0 +1,33 @@
+using System.Text.Json.Serialization;
+using MessagePack;
+using SVSim.EmulatedEntrypoint.Models.Dtos.Requests;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos.Requests.LeaderSkin;
+
+/// <summary>
+/// POST /leader_skin/set — the per-class "current leader skin" preference used as a fallback
+/// when a deck has <c>leader_skin_id == 0</c>. Two modes:
+///   - Non-random: <c>is_random_leader_skin=false</c>, <c>leader_skin_id</c> is the chosen skin id.
+///   - Random:     <c>is_random_leader_skin=true</c>, <c>leader_skin_id_list</c> is the shuffle pool
+///     (server picks per-match). Random mode is not implemented in v1 (returns 501).
+/// Source: <c>Wizard/LeaderSkinUpdateTask.cs</c>.
+/// </summary>
+[MessagePackObject]
+public class LeaderSkinSetRequest : BaseRequest
+{
+    [JsonPropertyName("class_id")]
+    [Key("class_id")]
+    public int ClassId { get; set; }
+
+    [JsonPropertyName("leader_skin_id")]
+    [Key("leader_skin_id")]
+    public int LeaderSkinId { get; set; }
+
+    [JsonPropertyName("is_random_leader_skin")]
+    [Key("is_random_leader_skin")]
+    public bool IsRandomLeaderSkin { get; set; }
+
+    [JsonPropertyName("leader_skin_id_list")]
+    [Key("leader_skin_id_list")]
+    public int[] LeaderSkinIdList { get; set; } = Array.Empty<int>();
+}