Retrieve Binance Academy's official educational content (Glossary, Courses, Learn & Earn, Articles) for AI chat. Trigger when the user's message expresses one of these INTENTS (NOT keyword matches): (1) Knowledge Q&A — "What is Gas Fee?", "Why did I receive less crypto than I sent?", "How does staking work?" (2) Risk Education — high-risk trading/investment intent: leverage, borrowing to trade, all-in, scams, "20x long", "borrowing to amplify position" (3) Customized Learning Plan — "I want to learn DeFi", "Build me a 5-day Bitcoin plan", "DeFi learning path for beginners" (4) Learn & Earn — "Which Academy courses have rewards?", "一文读懂 X", "What is X (TICKER)?", "courses that pay crypto" This skill extracts clean query terms from natural language before calling the API. It NEVER gives investment advice — educational content only.