Added umu download and repair for missing components on install, update and manual repair.

ptlinux/__main__.py

@@ -9,10 +9,16 @@ def main() -> int:
 	arguments = sys.argv[1:]
 	if not arguments or arguments == ["gui"]:
 		from .paths import AppPaths
-		from .ui import run_dashboard
+		from .umu import provision_umu_for_startup
 
 		try:
-			run_dashboard(AppPaths.from_environment())
+			paths = AppPaths.from_environment()
+			# Older installed releases cannot run a bootstrap step that only exists
+			# in their update payload. Their automatic restart enters here instead.
+			provision_umu_for_startup(paths)
+			from .ui import run_dashboard
+
+			run_dashboard(paths)
 		except KeyboardInterrupt:
 			return 130
 		except (ValueError, OSError, RuntimeError) as exc: