Pushed updates for release v1.1.0

src/ptlinux/depot.py

@@ -270,6 +270,24 @@ def read_cached_depot_launch_catalog(path: Path) -> DepotLaunchCatalog | None:
 		return None
 
 
+def validate_installed_launch_catalog(
+	paths: AppPaths,
+	catalog: DepotLaunchCatalog | None,
+) -> None:
+	"""Prevent a background update check from supplying arguments for another build."""
+
+	installed_build = _completed_depot_build(paths.native_depot_state)
+	if installed_build is None:
+		return  # Legacy/external installations do not have a native depot receipt.
+	if catalog is None or catalog.build != installed_build:
+		advertised_build = str(catalog.build) if catalog is not None else "missing"
+		raise DepotError(
+			f"launch options build {advertised_build} does not match installed game "
+			f"build {installed_build}; run `pristontale-eu update` before playing "
+			"to refresh the game and its publisher launch parameters together"
+		)
+
+
 def cache_depot_file_catalog(
 	path: Path,
 	game_directory: Path,