missing-path-ignore-for-non-code

Detects heavy workflows that do not ignore obviously non-code changes such as docs and markdown.

Why this rule exists:

• documentation-only changes often should not spend the same CI budget as code changes

Current MVP heuristic:

• the workflow is classified as “heavy”
• no paths-ignore entry looks like docs or markdown exclusions

Typical remediation:

• add paths-ignore entries for docs, markdown, and similar non-code content where safe