feat: trading bot MVP — ICT Order Block + Liquidity Sweep strategy

Full-stack trading bot with:
- FastAPI backend with ICT strategy (Order Block + Liquidity Sweep detection)
- Backtester engine with rolling window, spread simulation, and performance metrics
- Hybrid market data service (yfinance + TwelveData with rate limiting + SQLite cache)
- Simulated exchange for paper trading
- React/TypeScript frontend with TradingView lightweight-charts v5
- Live dashboard with candlestick chart, OHLC legend, trade markers
- Backtest page with configurable parameters, equity curve, and trade table
- WebSocket support for real-time updates
- Bot runner with asyncio loop for automated trading

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/tailwind.config.ts

@@ -0,0 +1,28 @@
+import type { Config } from 'tailwindcss'
+
+const config: Config = {
+  darkMode: 'class',
+  content: [
+    './index.html',
+    './src/**/*.{ts,tsx}',
+  ],
+  theme: {
+    extend: {
+      colors: {
+        background: '#0f1117',
+        surface: '#1a1d27',
+        border: '#2a2d3e',
+        'text-primary': '#e2e8f0',
+        'text-muted': '#64748b',
+        accent: '#6366f1',
+        'bull': '#26a69a',
+        'bear': '#ef5350',
+        'bull-light': '#26a69a33',
+        'bear-light': '#ef535033',
+      },
+    },
+  },
+  plugins: [],
+}
+
+export default config