address a few shellcheck complains

[EvilOlaf]

one false positive and one that isn't a good idea

Summary by CodeRabbit

• Chores
  • Internal code quality improvements and minor formatting adjustments with no impact on functionality.

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[coderabbitai]

Walkthrough

The pull request adds shellcheck suppression directives to the start-server.sh script to suppress false positive warnings during shutdown handling and server startup. The changes are non-functional—only linting annotations and minor formatting adjustments are introduced.

Changes

Cohort / File(s)	Summary
Shellcheck Suppression Additions start-server.sh	Added shellcheck directives to suppress SC2329 (shutdown function) and SC2086 (xvfb-run invocation) false positives. Removed trailing blank line. No behavioral changes to script logic.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~5–10 minutes

Poem

🐰 A shell script so fine, needs a lint suppression or two,
False warnings begone! SC2329 and SC2086 we subdue,
No logic was changed, just directives we add,
Clean code and less noise—now that's rad! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding shellcheck suppressions to address specific warnings in the start-server.sh script.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch suppress-shellcheck-warnings

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