Update preview nodes

- Support custom background color in preview node
- Fix Preview node does not update automatically with same mesh name
- Add system config file that allow custom clients IP address

__init__.py

@@ -1,6 +1,7 @@
 import os
 import sys
 import folder_paths as comfy_paths
+from pyhocon import ConfigFactory
 
 ROOT_PATH = os.path.join(comfy_paths.get_folder_paths("custom_nodes")[0], "ComfyUI-3D-Pack")
 sys.path.append(ROOT_PATH)
@@ -9,7 +10,16 @@ import shutil
 import __main__
 import importlib
 import inspect
-from .webserver.server import server
+from .webserver.server import server, set_web_conf
+
+conf_path = os.path.join(ROOT_PATH, "configs/system.conf")
+# Configuration
+f = open(conf_path)
+conf_text = f.read()
+f.close()
+sys_conf = ConfigFactory.parse_string(conf_text)
+
+set_web_conf(sys_conf['web'])
 
 NODE_CLASS_MAPPINGS = {}
 NODE_DISPLAY_NAME_MAPPINGS = {}