fix: restore dual-platform navigation hub on root route for InferRoute Gateway and Quant.ai Trader

feat: optimize Hugging Face Space Docker build and zero-config deployment

Integrate Institutional Ownership %, Short Interest %, and Beta into AI decision engine

Fix Alpaca 500 internal error by adding 3x retry mechanism and preventing UI screen locks

Add interactive 3 AI Agent Mode Selector UI card & update default High Freq Sniper mode

Add 3 AI Trading Modes (Aggressive Day Trading, Swing Trend, Options Quant ML) & persist in AGENTS.md

Add Alpaca Broker Order History Ledger table to Quant.ai Web UI

feat: Integrate Quant.ai into InferRoute gateway under /quant and /api routes

feat: platform ecosystem showcase and UI upgrade