- Remove placeholder comments from initialCode fields - Fix typo: "wichtig Wort" -> "wichtigen Wort" in de/20-html-elements.json - Improve German validation messages for readability - Use consistent terminology (Eingabefeld instead of Input) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>