7e8ab4bae1
CRITICAL FIXES: - Fixed isPureDontKnow logic in chat mode to properly exclude confusion/help requests - Added detection for repetition frustration: 'hab ich doch schon gesagt', 'already said that' - Enhanced confusion detection in both chat and step-by-step modes - Added topic-specific fallback explanations for bird flight questions - Ensures confused/frustrated children get explanations instead of more questions This resolves the issue where children expressing confusion in chat mode were still getting Socratic questions instead of helpful explanations.