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

Fix Hugging Face Space 503 deployment error by adding robust static fallback paths & missing HTMLResponse import

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

Add Options order execution with max capital cap & persistent Options Ledger UI

Add AI Thought Radar & Direct Options Selection Panel to default main page

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

Support persistent Watchlist saving and add detailed AI Stock Selection Prompt explanation

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

Add submit_stock_order API endpoint for real-time stock buying tests

Add AI Trading Agent Decision and Chat API endpoints

Fix Render deployment dependencies for Quant.ai and InferRoute

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

feat: platform ecosystem showcase and UI upgrade