improved: cm-cli.py save-snapshot - validate output path

fixed: Update all - Properly display the results of the ComfyUI update.
fixed: Update all - An issue where the action results of the custom nodes manager were reflected in the main dialog.

https://github.com/ltdrdata/ComfyUI-Manager/issues/1548

glob/manager_core.py

@@ -42,7 +42,7 @@ import manager_downloader
 from node_package import InstalledNodePackage
 
 
-version_code = [3, 21]
+version_code = [3, 21, 1]
 version_str = f"V{version_code[0]}.{version_code[1]}" + (f'.{version_code[2]}' if len(version_code) > 2 else '')
 
 
@@ -1619,7 +1619,6 @@ def read_config():
                }
 
     except Exception:
-        traceback.print_exc()
         manager_util.use_uv = False
         return {
             'http_channel_enabled': False,

glob/manager_server.py

@@ -599,6 +599,7 @@ async def task_worker():
                 nodepack_result[ui_id] = msg
                 ui_target = "main"
             elif kind == 'update-comfyui':
+                nodepack_result['comfyui'] = msg
                 ui_target = "main"
             else:
                 nodepack_result[ui_id] = msg