[codex] Reject boolean n_results values

[pragnyanramtha]

Summary

• Reject boolean values in validate_n_results so n_results=True is not accepted as 1.
• Add focused coverage for both True and False inputs.

Why

bool is a subclass of int in Python, so the existing isinstance(n_results, int) check let True pass validation even though n_results is documented and validated as a positive integer count.

Validation

• python -m pytest --noconftest chromadb/test/api/test_types.py -q
• Direct check that validate_n_results(True) and validate_n_results(False) raise ValueError while validate_n_results(1) still passes.

[github-actions]

Reviewer Checklist

Please leverage this checklist to ensure your code review is thorough before approving

Testing, Bugs, Errors, Logs, Documentation

• Can you think of any use case in which the code does not behave as intended? Have they been tested?
• Can you think of any inputs or external events that could break the code? Is user input validated and safe? Have they been tested?
• If appropriate, are there adequate property based tests?
• If appropriate, are there adequate unit tests?
• Should any logging, debugging, tracing information be added or removed?
• Are error messages user-friendly?
• Have all documentation changes needed been made?
• Have all non-obvious changes been commented?

System Compatibility

• Are there any potential impacts on other parts of the system or backward compatibility?
• Does this change intersect with any items on our roadmap, and if so, is there a plan for fitting them together?

Quality

• Is this code of a unexpectedly high quality (Readability, Modularity, Intuitiveness)

[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.