[Patrick-Erichsen]

Summary

The Bash helper timeout test could kill a freshly created macOS executable before it wrote its PID, so it failed without exercising the intended cleanup assertion. Wait for the actual helper to identify itself before starting the test's short timeout.

 launch real helper
+wait for matching helper PID (bounded setup)
 exercise 0.1s timeout
 assert helper is reaped

Evidence

• Before: the unchanged test fails 5/5 in a fresh real host scanner install with FileNotFoundError: helper.pid.
• After: the same installed scanner passes 5/5 repeated timeout runs and all 34 Bash adapter controls. The real subprocess, process-group cleanup and elapsed-time assertion remain exercised.
• Production parser code and its 0.5s limit are unchanged. Independent P0–P3 review is clean.

Merge Danger

Door: two-way

Blast Radius: tests

[clawsweeper]

🦞👀
ClawSweeper picked this up.

Pull request received. I will update this pull request when review starts.