add csfloat api usage

BlueLaminate/BlueLaminate.Scraper/Skins/CatalogSkin.cs

@@ -3,6 +3,8 @@ namespace BlueLaminate.Scraper.Skins;
 /// <summary>A single CS2 skin from the CSGO-API static catalogue (skins.json).</summary>
 /// <param name="Id">Stable catalogue id, e.g. "skin-e757fd7191f9". Globally unique natural key.</param>
 /// <param name="WeaponName">Owning weapon, e.g. "AK-47", "Hand Wraps", "Bayonet".</param>
+/// <param name="DefIndex">CS weapon definition index (weapon.weapon_id), e.g. AK-47=7. Null if absent.</param>
+/// <param name="PaintIndex">Paint index identifying the finish, e.g. 985. Null if absent.</param>
 /// <param name="Category">Weapon category, e.g. "Rifles", "Knives", "Gloves". Becomes the weapon type.</param>
 /// <param name="Team">"CT", "T", or "Both".</param>
 /// <param name="Name">Skin/pattern name, e.g. "Dragon Lore"; "Vanilla" for knives with no finish.</param>
@@ -17,6 +19,8 @@ namespace BlueLaminate.Scraper.Skins;
 public sealed record CatalogSkin(
     string Id,
     string WeaponName,
+    int? DefIndex,
+    int? PaintIndex,
     string Category,
     string Team,
     string Name,

BlueLaminate/BlueLaminate.Scraper/Skins/SkinCatalogClient.cs

@@ -48,6 +48,8 @@ public sealed class SkinCatalogClient
         return new CatalogSkin(
             Id: dto.Id,
             WeaponName: dto.Weapon?.Name ?? "Unknown",
+            DefIndex: dto.Weapon?.WeaponId,
+            PaintIndex: dto.PaintIndex,
             Category: dto.Category?.Name ?? "Unknown",
             Team: MapTeam(dto.Team?.Id),
             // Knives with no finish carry a null pattern; "Vanilla" is the community term.
@@ -88,9 +90,11 @@ public sealed class SkinCatalogClient
         string Id,
         string? Name,
         string? Description,
-        NamedDto? Weapon,
+        WeaponDto? Weapon,
         NamedDto? Category,
         NamedDto? Pattern,
+        // Top-level paint index. AllowReadingFromString handles its string form.
+        int? PaintIndex,
         decimal? MinFloat,
         decimal? MaxFloat,
         NamedDto? Rarity,
@@ -102,4 +106,7 @@ public sealed class SkinCatalogClient
         List<NamedDto>? Crates);
 
     private sealed record NamedDto(string? Id, string? Name);
+
+    // Weapon carries a numeric weapon_id (the def_index) alongside id/name.
+    private sealed record WeaponDto(string? Id, int? WeaponId, string? Name);
 }