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BlueLaminate/BlueLaminate.Core/SkinLand/SkinLandJson.cs

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+using System.Text.Json.Serialization;
+
+namespace BlueLaminate.Core.SkinLand;
+
+/// <summary>
+/// The subset of a skin.land <c>obtained-skins</c> offer we persist, parsed from the
+/// JSON the Python worker scrapes (the paginated <c>data[]</c> array). Decimals are
+/// parsed directly (not via double) so the full-precision float round-trips exactly into
+/// <c>numeric(20,18)</c>. skin.land exposes no paint seed / def index, so there's nothing
+/// to fingerprint a <c>SkinInstance</c> with — the shape is intentionally thin.
+/// </summary>
+public sealed class SkinLandOffer
+{
+    [JsonPropertyName("id")] public long Id { get; set; }
+    [JsonPropertyName("item_float")] public decimal? ItemFloat { get; set; }
+    [JsonPropertyName("final_withdrawal_price")] public decimal? FinalWithdrawalPrice { get; set; }
+    [JsonPropertyName("name_tag")] public string? NameTag { get; set; }
+    [JsonPropertyName("item_link")] public string? ItemLink { get; set; }
+    [JsonPropertyName("stickers")] public List<SkinLandSticker?>? Stickers { get; set; }
+    [JsonPropertyName("skin")] public SkinLandSkin? Skin { get; set; }
+}
+
+public sealed class SkinLandSkin
+{
+    [JsonPropertyName("id")] public long? Id { get; set; }
+    [JsonPropertyName("name")] public string? Name { get; set; }
+    [JsonPropertyName("url")] public string? Url { get; set; }       // the market slug
+    [JsonPropertyName("is_stattrak")] public bool IsStatTrak { get; set; }
+    [JsonPropertyName("is_souvenir")] public bool IsSouvenir { get; set; }
+}
+
+public sealed class SkinLandSticker
+{
+    [JsonPropertyName("name")] public string? Name { get; set; }
+}