Fix sandbox instructions and update .gitignore

[bmunkholm]

No description provided.

[coderabbitai]

Walkthrough

Adds build/lib to .gitignore and updates two pip install --editable commands in docs/sandbox.md to quote the extras specifier for correct shell parsing.

Changes

Cohort / File(s)	Change Summary
Git configuration .gitignore	Added build/lib to ignore patterns.
Documentation docs/sandbox.md	Quoted the extras specifier in two pip install --editable commands (from --editable=.[develop,docs,test] to --editable '.[develop,docs,test]').

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• Quick checks: verify .gitignore pattern is correct and not unintentionally hiding tracked files; confirm doc command quoting is syntactically correct for common shells.

Poem

🐇 I tidy files with a hop and nibble,
Ignoring build crumbs from every dribble.
I tuck quotes round pip with care,
So shells don't grumble or despair.
Hooray — the repo breathes cleaner air! ✨

Pre-merge checks and finishing touches

❌ Failed checks (1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	❓ Inconclusive	No pull request description was provided by the author, making it impossible to assess whether it relates to the changeset.	Add a description explaining the motivation and details of the .gitignore update and sandbox instruction fixes.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main changes: fixing sandbox instructions in docs and updating .gitignore with the build/lib pattern.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 3182012 and bfe8f74.

📒 Files selected for processing (2)

• .gitignore (1 hunks)
• docs/sandbox.md (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (2)

• .gitignore
• docs/sandbox.md

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