Note

Low Risk
Limited to docs content generation logic; main risk is misclassification or missing example articles if the expected folder structure differs.

Overview
Fixes docs build failures when generating the examples section by changing article discovery to recursively locate README.md files instead of assuming a flat directory layout.

This refactors generateSection to use explicit article source lists (getRegularArticleSources vs getExampleArticleSources), derives example articleId/categoryId from folder paths, and allows getArticleData to accept a category override so example category assignment no longer depends on frontmatter.

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