Add TownSquare scene assets, resource production docs, and model pipeline updates.

Bring in plaza props/prefabs, ZhaoYun source GLB, design originals, and Hunyuan/Blender tooling used to produce them.

Co-authored-by: Cursor <cursoragent@cursor.com>

Tools/model_tools/bl_bake.py

@@ -91,6 +91,7 @@ def _import_model_joined(path, warnings):
     bpy.ops.object.select_all(action='DESELECT')
     obj.select_set(True)
     bpy.context.view_layer.objects.active = obj
+    # 导入补偿（FBX +90°X）烤进顶点，烘焙在 Blender Z-up 下进行；导出前 restore_source_yup。
     bpy.ops.object.transform_apply(location=True, rotation=True, scale=True)
     return obj
 
@@ -269,11 +270,13 @@ def main():
 
     # 导出低模：剥掉烘焙 image 节点，材质名保留 stem（工具3 兜底识别用）
     bake_mat.node_tree.nodes.remove(target_node)
+    from bl_decimate import export_fbx_source_yup, prepare_game_export
+    prepare_game_export(low, restore_axis=True)
     out_fbx = os.path.join(outdir, stem + ".fbx")
     bpy.ops.object.select_all(action='DESELECT')
     low.select_set(True)
-    bpy.ops.export_scene.fbx(filepath=out_fbx, use_selection=True,
-                             path_mode='STRIP', embed_textures=False)
+    bpy.context.view_layer.objects.active = low
+    export_fbx_source_yup(out_fbx)
 
     print("MT_SUMMARY " + json.dumps(
         {"stem": stem, "fbx": os.path.basename(out_fbx), "outputs": outputs,