Merging this PR will not alter performance

✅ 2 untouched benchmarks

_{Comparing copilot/fix-ruff-toml-comments-issue (f8d45fb) with main (ee85faf)¹}

@copilot the TestAddAuthor.test_append test is failing, please investigate.

@copilot the TestAddAuthor.test_append test is failing, please investigate.

Fixed in f00ffcb. The add_author function's delete/re-set dance relied on the old extend_list behavior of creating a plain Python list (which triggered tomlkit's format conversion to [[project.authors]]). With the in-place Array modification, the tomlkit Array type is now preserved, so add_author needs to explicitly unwrap items to plain dicts via [dict(item) for item in full_raw] before re-setting. The test expectation was also updated for a minor cosmetic whitespace difference (one fewer leading newline).

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

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@copilot the static checks are failing - you need to fix these

@copilot the static checks are failing - you need to fix these

Fixed in 282b11a. Two issues:

1. ty type error in author.py:34 — dict(item) where item is object doesn't match any dict.__init__ overload. Fixed by narrowing with assert isinstance(item, Mapping) before calling dict(item).

2. markdownlint AGENTS.md:212-213 — table pipe misalignment (160 chars vs 161 for other rows). This was pre-existing from the merge with main but fixed here by adding a trailing space to align the pipes.