fix(browser): keep background Chromium profile alive

[ankitranjan7]

Description

Prevent macOS background Cloak Chromium from crashing with EXC_BREAKPOINT / SIGTRAP after webcmd doctor closes its probe window.

The background launcher bypasses Playwright defaults, so DestroyProfileOnBrowserClose remained enabled while Webcmd kept a hidden CDP target alive. This disables that feature in the macOS background launch arguments and tests the emitted /usr/bin/open argument.

Related issue: None

Type of Change

• 🐛 Bug fix
• ✨ New feature
• 💥 Breaking change
• 📝 Documentation
• 🔧 Maintenance / refactor

Checklist

• I ran the checks relevant to this PR
• I updated tests or docs if needed
• I included output or screenshots when useful

Adapter Notes

• I updated an existing adapter command
• I added a new adapter command
• I updated the adapter manifest/examples
• I ran adapter verification

Screenshots / Output

• Focused regression: 6 passed
• Full suite: 5,550 passed, 56 skipped
• npm run build: passed
• Live macOS webcmd doctor: green; Chromium remained alive for 8 seconds after completion; no crash report generated

[github-actions]

🟠 Maintainer review suggested — low confidence

The automated review could not reach a fully supported conclusion.

Limitations

• The automated review returned an invalid structured result.

This review is advisory and does not block merging.