feat(gltf): add suggestBoneName + knownBoneNames helpers to GltfBoneMapper

src/main/java/com/tiedup/remake/client/gltf/GltfBoneMapper.java

@@ -7,6 +7,7 @@ import net.minecraft.client.model.HumanoidModel;
 import net.minecraft.client.model.geom.ModelPart;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Maps glTF bone names to Minecraft HumanoidModel parts.
@@ -110,4 +111,25 @@ public final class GltfBoneMapper {
     public static boolean isKnownBone(String boneName) {
         return BONE_TO_PART.containsKey(boneName);
     }
+
+    /**
+     * Get all known bone names for validation/suggestion purposes.
+     */
+    public static Set<String> knownBoneNames() {
+        return BONE_TO_PART.keySet();
+    }
+
+    /**
+     * Suggest a known bone name for a case-insensitive match.
+     * Returns null if no case-insensitive match is found.
+     */
+    @Nullable
+    public static String suggestBoneName(String unknownBone) {
+        for (String known : BONE_TO_PART.keySet()) {
+            if (known.equalsIgnoreCase(unknownBone)) {
+                return known;
+            }
+        }
+        return null;
+    }
 }