Based on the following code changes, select which wiki articles should be updated.

Code changes:
{content}

Available wiki articles:
{wiki_files}

Consider updating:
- Usage.md if commands or workflows changed
- Architecture.md if system design changed
- Configuration.md if config options changed
- API.md if APIs changed
- Security.md if security features changed

Return structured result with:
- selected_articles: List of wiki filenames that need updates