Task

credit_note.sh formats a credit note incorrectly:

• It prints a debit label instead of a credit label.
• It preserves the sign instead of always showing the credited amount as positive.

Use the smallest correct fix, then run this exact verification command from the repo/ directory:

sh tests/test_credit_note.sh

If you use apply_patch, the patch paths must still be relative to the sandbox workspace root. That means the file paths should be repo/credit_note.sh and repo/tests/test_credit_note.sh.

Do not change the test expectations.