The schema file lives at docs/function-classification-schema.md but is not a published Starlight page, so a relative link resolves fine in the manual source tree but breaks once copied into docs/site/src/content/docs/ — starlight-links-validator failed CI's build-docs job on it. Rewrite it as an absolute Gitea blob URL, the same pattern _rewrite_repo_links already uses for CONTRIBUTING.md/LICENSE.