I completed onboarding

[mouftz]

Summary

Completed the onboarding exercise from issue #:

• Added mouftz to user_list in tests/test_introduction.py
• Added test_mouftz (palindrome check on "racecar")
• Updated test_kurbydoo's length assertion from == 2 to == 3 to reflect the new list size

Verified locally with uv run pytest (33 passed) and uv run ruff check . / uv run ruff format --check . (clean).

Validation

• scripts/quality-check.sh passes locally
• Appropriate /test commands were run and are passing (e.g. /test gpu)
• Unit tests were added / e2e tests were added where applicable
• Manual testing, if applicable (describe further):

Checklist

• The change is focused and easy to review.
• Tests were added or updated for behaviour changes.
• No secrets, generated files, or files that only make sense on my machine are included.
• Relevant documentation is updated.

Additional Comments

Closes #20
scripts/format-check.sh fails on macOS's default bash (3.2) at line 49: check_format[@]: unbound variable. It's an unset-array expansion under set -u. Fix is "${check_format[@]:-}". Works fine on Linux and bash 5+

[KurbyDoo]

lgtm

[KurbyDoo]

/test all

[KurbyDoo]

https://www.githubstatus.com/

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