Returns a complete technical analysis package for any US stock: RSI(14) with oversold/overbought signal, MACD(12/26/9) with histogram, Bollinger Bands(20,2σ) with price position, SMA 20/50/200 with crossover state, 20-day volume ratio, and a consensus signal (BULLISH/BEARISH/NEUTRAL) based on indicator agreement. Sourced from 1-year Yahoo Finance daily OHLCV — no API key, live data. Richer than a simple price endpoint: agents use this for entry/exit signal confirmation, momentum screening, and