fix(gltf): select mesh by 'Item' name convention with fallback

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

@@ -113,6 +113,10 @@ public final class GlbParser {
             String name = node.has("name")
                 ? node.get("name").getAsString()
                 : "joint_" + j;
+            // Strip armature prefix (e.g., "MyRig|body" -> "body")
+            if (name.contains("|")) {
+                name = name.substring(name.lastIndexOf('|') + 1);
+            }
             if (GltfBoneMapper.isKnownBone(name)) {
                 skinJointRemap[j] = filteredJointNodes.size();
                 filteredJointNodes.add(nodeIdx);
@@ -145,9 +149,13 @@ public final class GlbParser {
             int nodeIdx = filteredJointNodes.get(j);
             JsonObject node = nodes.get(nodeIdx).getAsJsonObject();
 
-            jointNames[j] = node.has("name")
+            String rawName = node.has("name")
                 ? node.get("name").getAsString()
                 : "joint_" + j;
+            // Strip armature prefix consistently
+            jointNames[j] = rawName.contains("|")
+                ? rawName.substring(rawName.lastIndexOf('|') + 1)
+                : rawName;
 
             // Rest rotation
             if (node.has("rotation")) {
@@ -215,20 +223,36 @@ public final class GlbParser {
             }
         }
 
-        // -- Find mesh (ignore "Player" mesh, take LAST non-Player) --
+        // -- Find mesh by convention, then fallback --
-        // WORKAROUND: Takes the LAST non-Player mesh because modelers may leave prototype meshes
+        // Priority: 1) mesh named "Item", 2) last non-Player mesh
-        //  in the .glb. Revert to first non-Player mesh once modeler workflow is standardized.
         int targetMeshIdx = -1;
+        String selectedMeshName = null;
+        int nonPlayerCount = 0;
         if (meshes != null) {
             for (int mi = 0; mi < meshes.size(); mi++) {
                 JsonObject mesh = meshes.get(mi).getAsJsonObject();
                 String meshName = mesh.has("name")
                     ? mesh.get("name").getAsString()
                     : "";
+                if ("Item".equals(meshName)) {
+                    targetMeshIdx = mi;
+                    selectedMeshName = meshName;
+                    break; // Convention match — use it
+                }
                 if (!"Player".equals(meshName)) {
                     targetMeshIdx = mi;
+                    selectedMeshName = meshName;
+                    nonPlayerCount++;
                 }
             }
+            if (nonPlayerCount > 1 && !"Item".equals(selectedMeshName)) {
+                LOGGER.warn(
+                    "[GltfPipeline] {} non-Player meshes found in {} — using '{}'. "
+                        + "Name your mesh 'Item' for explicit selection.",
+                    nonPlayerCount, debugName,
+                    selectedMeshName != null ? selectedMeshName : "(unnamed)"
+                );
+            }
         }
 
         // -- Parse root material names (for tint channel detection) --