feat: OpenBB Investment Analysis API

REST API wrapping OpenBB SDK for stock data, sentiment analysis,
technical indicators, macro data, and rule-based portfolio analysis.

- Stock data via yfinance (quote, profile, metrics, financials, historical, news)
- News sentiment via Alpha Vantage (per-article, per-ticker scores)
- Analyst data via Finnhub (recommendations, insider trades, upgrades)
- Macro data via FRED (Fed rate, CPI, GDP, unemployment, treasury yields)
- Technical indicators via openbb-technical (RSI, MACD, SMA, EMA, Bollinger)
- Rule-based portfolio analysis engine (BUY_MORE/HOLD/SELL)
- Stock discovery (gainers, losers, active, undervalued, growth)
- 102 tests, all passing

main.py

@@ -0,0 +1,49 @@
+import logging
+
+import uvicorn
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from config import settings
+from routes import router
+from routes_sentiment import router as sentiment_router
+from routes_macro import router as macro_router
+from routes_technical import router as technical_router
+
+logging.basicConfig(
+    level=settings.log_level.upper(),
+    format="%(asctime)s %(levelname)s %(name)s: %(message)s",
+)
+
+app = FastAPI(
+    title="OpenBB Investment Analysis API",
+    version="0.1.0",
+    description="REST API for stock data and rule-based investment analysis, powered by OpenBB SDK.",
+)
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=settings.cors_origins,
+    allow_credentials=False,
+    allow_methods=["GET", "POST"],
+    allow_headers=["Content-Type", "Authorization"],
+)
+
+app.include_router(router)
+app.include_router(sentiment_router)
+app.include_router(macro_router)
+app.include_router(technical_router)
+
+
+@app.get("/health", response_model=dict[str, str])
+async def health() -> dict[str, str]:
+    return {"status": "ok"}
+
+
+if __name__ == "__main__":
+    uvicorn.run(
+        "main:app",
+        host=settings.host,
+        port=settings.port,
+        reload=settings.debug,
+    )