Add bounded aircraft control and verify current packaged runtime closure

docs/evidence/package-2026-09-19-1317-all/evidence/map/native-child.py

@@ -0,0 +1,9 @@
+import json, os, subprocess, sys
+from pathlib import Path
+command = sys.argv[3:]
+environment = os.environ.copy()
+environment.update(json.loads(Path(sys.argv[2]).read_text()))
+code = subprocess.call(command, env=environment)
+with Path(sys.argv[1]).open('x') as output:
+    json.dump({'command': command, 'exit_code': code}, output)
+sys.exit(code)