speed up devcontainer remove extension

[adamoutler]

📌 Description

This PR reworks 2 devcontainer issues.

1. The order of execution of building test container and initializing services is reversed to allow quicker access to services.
2. the pamaron.pytest-runner plugin was causing crashes and does not appear to be required.

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🔍 Related Issues

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📋 Type of Change

• 🐛 Bug fix
• ✨ New feature
• ♻️ Code refactor
• 📚 Documentation update
• 🧪 Test addition or change
• 🔧 Build/config update
• 🚀 Performance improvement
• 🔨 CI/CD or automation
• 🧹 Cleanup / chore

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📷 Screenshots or Logs (if applicable)

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🧪 Testing Steps

1. Trigger a devcontainer rebuild.
2. Observe service availability timing.
3. Verify VS Code stability without the pamaron.pytest-runner extension.

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✅ Checklist

• I have read the Contribution Guidelines
• I have tested my changes locally
• I have updated relevant documentation (if applicable)
• I have verified my changes do not break existing behavior
• I am willing to respond to requested changes and feedback

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🙋 Additional Notes

The pamaron.pytest-runner extension was identified as the primary source of workspace crashes. Testing confirms that native VS Code Python test discovery handles requirements sufficiently.

Summary by CodeRabbit

• Chores
  • Optimized development environment configuration and removed unnecessary development extensions to streamline the developer setup process.

Note: This release contains no user-facing changes.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

📝 Walkthrough

Walkthrough

The devcontainer configuration was updated to reorder postStartCommand entries, placing the test-container build before the environment startup, and removed the pytest-runner VSCode extension from the extensions list.

Changes

Cohort / File(s)	Summary
Dev Container Configuration .devcontainer/devcontainer.json	Reordered postStartCommand entries with "Build test-container" now preceding "Start Environment"; added trailing comma to accommodate the reordering; removed pamaron.pytest-runner from vscode extensions list

Poem

🐰 The config hops in new sequence order,
Build before start, let tests soar and explore,
One extension removed from the VSCode store,
Cleaner, faster, who could ask for more!

🚥 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 directly addresses the main objectives: removing an extension and optimizing devcontainer performance.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

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