fix(scripts): make the Input access check path-separator agnostic

ripgrep prints backslash paths on Windows, so the infrastructure/input
exclusion never matched and the architecture check failed on a clean tree.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

scripts/check_architecture.sh

@@ -107,7 +107,7 @@ if [ -d game ]; then
 	fi
 
 	input_violations="$(
-		rg -n '\bInput\.' game --glob '*.gd' \
+		rg -n --path-separator / '\bInput\.' game --glob '*.gd' \
 		| rg -v '^game/infrastructure/input/' \
 		|| true
 	)"