Fix e2e cleanup: ignore errors from OpenClaw leftover files

TemporaryDirectory cleanup fails with OSError when OpenClaw gateway
leaves behind lock/session files. ignore_cleanup_errors=True lets
the test pass while the OS cleans up /tmp on reboot.

e2e/wrap/run.py

@@ -621,7 +621,9 @@ def verify_openclaw_wrap(
 
 def main() -> None:
     verify_installs()
-    with tempfile.TemporaryDirectory(prefix="headroom-wrap-e2e-") as tmp_dir_str:
+    with tempfile.TemporaryDirectory(
+        prefix="headroom-wrap-e2e-", ignore_cleanup_errors=True
+    ) as tmp_dir_str:
         tmp_dir = Path(tmp_dir_str)
         home_dir = tmp_dir / "home"
         project_dir = tmp_dir / "project"