Add body for asset

It makes sense to expose entire underlying asset to the callers, as underlying body might have features they like, such as currencyid or est_usd - values that do not exist in json and we're not making use of them, but we still want to keep if provided e.g. by ArchiHandler.

ArchiSteamFarm/Steam/Data/Asset.cs

@@ -24,6 +24,7 @@
 using System;
 using System.Text.Json.Serialization;
 using JetBrains.Annotations;
+using SteamKit2.Internal;
 
 namespace ArchiSteamFarm.Steam.Data;
 
@@ -34,6 +35,9 @@ public sealed class Asset {
 	public const ulong SteamCommunityContextID = 6;
 	public const ulong SteamPointsShopInstanceID = 3865004543;
 
+	[JsonIgnore]
+	public CEcon_Asset Body { get; } = new();
+
 	[JsonIgnore]
 	public bool IsSteamPointsShopItem => !Tradable && (InstanceID == SteamPointsShopInstanceID);
 
@@ -56,26 +60,41 @@ public sealed class Asset {
 	[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.WriteAsString)]
 	[JsonPropertyName("amount")]
 	[JsonRequired]
-	public uint Amount { get; internal set; }
+	public uint Amount {
+		get => (uint) Body.amount;
+		internal set => Body.amount = value;
+	}
 
 	[JsonInclude]
 	[JsonPropertyName("appid")]
-	public uint AppID { get; private init; }
+	public uint AppID {
+		get => Body.appid;
+		private init => Body.appid = value;
+	}
 
 	[JsonInclude]
 	[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.WriteAsString)]
 	[JsonPropertyName("assetid")]
-	public ulong AssetID { get; private init; }
+	public ulong AssetID {
+		get => Body.assetid;
+		private init => Body.assetid = value;
+	}
 
 	[JsonInclude]
 	[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.WriteAsString)]
 	[JsonPropertyName("classid")]
-	public ulong ClassID { get; private init; }
+	public ulong ClassID {
+		get => Body.classid;
+		private init => Body.classid = value;
+	}
 
 	[JsonInclude]
 	[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.WriteAsString)]
 	[JsonPropertyName("contextid")]
-	public ulong ContextID { get; private init; }
+	public ulong ContextID {
+		get => Body.contextid;
+		private init => Body.contextid = value;
+	}
 
 	[JsonIgnore]
 	public InventoryDescription? Description { get; internal set; }
@@ -83,7 +102,10 @@ public sealed class Asset {
 	[JsonInclude]
 	[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.WriteAsString)]
 	[JsonPropertyName("instanceid")]
-	public ulong InstanceID { get; private init; }
+	public ulong InstanceID {
+		get => Body.instanceid;
+		private init => Body.instanceid = value;
+	}
 
 	[JsonInclude]
 	[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.WriteAsString)]
@@ -93,6 +115,13 @@ public sealed class Asset {
 		init => AssetID = value;
 	}
 
+	public Asset(CEcon_Asset asset, InventoryDescription? description = null) {
+		ArgumentNullException.ThrowIfNull(asset);
+
+		Body = asset;
+		Description = description;
+	}
+
 	public Asset(uint appID, ulong contextID, ulong classID, uint amount, InventoryDescription? description = null, ulong assetID = 0, ulong instanceID = 0) {
 		ArgumentOutOfRangeException.ThrowIfZero(appID);
 		ArgumentOutOfRangeException.ThrowIfZero(contextID);

ArchiSteamFarm/Steam/Integration/ArchiHandler.cs

@@ -238,7 +238,7 @@ public sealed class ArchiHandler : ClientMsgHandler {
 					continue;
 				}
 
-				yield return new Asset(asset.appid, asset.contextid, asset.classid, (uint) asset.amount, description, asset.assetid, asset.instanceid);
+				yield return new Asset(asset, description);
 			}
 
 			if (!response.more_items) {