Improves SPDX header linting to ensure consistent license metadata across
the codebase.
Key changes:
- Enforce deterministic tag ordering (License-Identifier, FileCopyrightText,
FileContributor) to ensure consistency, prevent merge conflicts, and
simplify code reviews
- Add contributor alias mapping to consolidate contributors with multiple
emails or name variations (e.g., "nickl-" → "Nick Lombard")
- Add --contributions-strategy option with "blame" (current code authors)
and "log" (all historical contributors) to support different attribution
philosophies
- Add optional path argument to lint specific files or directories
- Add --fix option to automatically correct header issues
Assisted-by: Claude Code (claude-opus-4-5-20251101)
