Implement support for an optional omitted frontmatter configuration key in DESIGN.md, allowing design system authors to explicitly declare token categories that are intentionally skipped or absent (Issue #78).
* Update Parser: Add 'omitted' to the known schema keys and types. Implement frontmatter parsing supporting both bare strings (e.g. - spacing) and object mappings with reasons (e.g. section: rounded, reason: "No rounded corners").
* Update Model: Forward the parsed omitted sections to the compiled DesignSystemState. Add optional rule property to linter Findings.
* Implement Omission Validation & Suppression:
- Create omittedRule to validate the omitted configuration, warning on unknown or redundant sections (if tokens exist for a section listed in omitted).
- Update missing-sections and missing-typography rules to skip warnings if the targets are explicitly listed as omitted.
- Register the new rule in the default linter list.
* Test Coverage: Add test suites verifying frontmatter parsing, model mapping, linter warnings (declared-omission, redundant-omission, unknown-omission), and rule suppressions.
* Docs: Document the omitted frontmatter key in README.md and spec.mdx, update active rule counts, and regenerate docs/spec.md.
---------
Co-authored-by: David East <deast@google.com>
Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>
Co-authored-by: Sudarshan sunil hadmode <sudarshan.deve@gmail.com>
Zach Shallbetter
961439fc06