fix(ui): handle missing or empty local version values and standardize defaults

kiauh/components/webui_client/client_utils.py

@@ -152,7 +152,7 @@ def symlink_webui_nginx_log(
 def get_local_client_version(client: BaseWebClient) -> str | None:
     relinfo_file = client.client_dir.joinpath("release_info.json")
     version_file = client.client_dir.joinpath(".version")
-    default = "n/a"
+    default = "-"
 
     if not client.client_dir.exists():
         return default

kiauh/core/menus/update_menu.py

@@ -257,14 +257,14 @@ class UpdateMenu(BaseMenu):
 
     def _format_local_status(self, local_version, remote_version) -> str:
         color = Color.RED
-        if not local_version:
+        if not local_version or local_version == '-':
             color = Color.RED
         elif local_version == remote_version:
             color = Color.GREEN
         elif local_version != remote_version:
             color = Color.YELLOW
 
-        return Color.apply(local_version or "-", color)
+        return str(Color.apply(local_version or '-', color))
 
     def _set_status_data(self, name: str, status_fn: Callable, *args) -> None:
         comp_status: ComponentStatus = status_fn(*args)