backend/app.py

```python
from fastapi import FastAPI, HTTPException, Depends, Security, Request, Response
from fastapi.security import APIKeyHeader
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel
from typing import Optional, List
import logging
import uvicorn
import os

# Configuration
API_KEY = os.getenv("API_KEY", "default-secret-key")
BINANCE_API_KEY = os.getenv("BINANCE_API_KEY")
BINANCE_SECRET_KEY = os.getenv("BINANCE_SECRET_KEY")
app = FastAPI(title="CryptoPilot Pro API", version="0.1.0")

@app.middleware("http")
async def add_security_headers(request: Request, call_next):
    response = await call_next(request)
    
    # Security Headers
    response.headers["X-Frame-Options"] = "DENY"
    response.headers["X-Content-Type-Options"] = "nosniff"
    response.headers["X-XSS-Protection"] = "1; mode=block"
    response.headers["Referrer-Policy"] = "strict-origin-when-cross-origin"
    response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains"
    response.headers["Content-Security-Policy"] = "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://cdn.jsdelivr.net https://unpkg.com; style-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net; img-src 'self' data: https:; font-src 'self' data: https://cdn.jsdelivr.net; connect-src 'self' https: wss:; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; upgrade-insecure-requests"
    response.headers["Permissions-Policy"] = "geolocation=(), microphone=(), camera=()"
    
    # Performance Headers
    if request.url.path.endswith(('.js', '.css', '.png', '.jpg', '.jpeg', '.gif', '.ico')):
        response.headers["Cache-Control"] = "public, max-age=31536000, immutable"
    else:
        response.headers["Cache-Control"] = "no-store, no-cache, must-revalidate"
    
    # Copyright Protection
    response.headers["X-Copyright"] = "© 2024 BIZRAH ELECTRONICS. All rights reserved."
    response.headers["X-Powered-By"] = "BIZRAH ELECTRONICS"
    
    return response
# Include model router
from backend.services.model_server import router as model_router
app.include_router(model_router)
# CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["GET", "POST", "PUT", "DELETE"],
    allow_headers=["*"],
    expose_headers=["Content-Disposition"]
)
# Security
api_key_header = APIKeyHeader(name="X-API-KEY")

async def get_api_key(api_key: str = Security(api_key_header)):
    if api_key != API_KEY:
        raise HTTPException(status_code=403, detail="Invalid API Key")
    return api_key

# Models
class AccountBalance(BaseModel):
    asset: str
    free: float
    locked: float

class Position(BaseModel):
    symbol: str
    positionAmt: float
    entryPrice: float
    markPrice: float
    unRealizedProfit: float
    leverage: int

class Order(BaseModel):
    symbol: str
    orderId: int
    side: str
    positionSide: str
    type: str
    price: float
    qty: float
    status: str

class Signal(BaseModel):
    symbol: str
    timeframe: str
    prob_up: float
    prob_down: float
    confidence: float
    advice: str

# Routes
@app.get("/api/account", 
         dependencies=[Depends(get_api_key)],
         response_model=List[AccountBalance])
async def get_account():
    """Fetch account balance and open positions"""
    # TODO: Implement Binance API integration
    return {
        "balances": [
            {"asset": "USDT", "free": 10000.0, "locked": 0.0},
            {"asset": "BTC", "free": 0.5, "locked": 0.0}
        ],
        "positions": [
            {
                "symbol": "BTCUSDT",
                "positionAmt": 0.1,
                "entryPrice": 50000.0,
                "markPrice": 51000.0,
                "unRealizedProfit": 100.0,
                "leverage": 10
            }
        ]
    }
@app.get("/api/orders", 
         dependencies=[Depends(get_api_key)],
         response_model=List[Order])
async def get_orders(symbol: Optional[str] = None):
    """List all orders (optionally filtered by symbol)"""
    # TODO: Implement Binance API integration
    return [
        {
            "symbol": "BTCUSDT",
            "orderId": 123456,
            "side": "BUY",
            "positionSide": "LONG",
            "type": "LIMIT",
            "price": 50000.0,
            "qty": 0.1,
            "status": "FILLED"
        }
    ]
@app.post("/api/orders", 
          dependencies=[Depends(get_api_key)],
          response_model=Dict[str, str])
async def create_order():
    """Place new order"""
    # TODO: Implement Binance API integration with risk checks
    return {"status": "success", "message": "Order placed"}
@app.get("/api/signal/{symbol}", 
         dependencies=[Depends(get_api_key)],
         response_model=Signal)
async def get_signal(symbol: str, timeframe: str = "5m"):
    """Get model prediction for symbol"""
    try:
        # Get latest klines from Binance
        binance = BinanceAdapter()
        klines = binance.get_klines(
            symbol=symbol,
            interval=timeframe,
            limit=100
        )
        
        # Format candles for model
        candles = [{
            "open": float(k[1]),
            "high": float(k[2]),
            "low": float(k[3]),
            "close": float(k[4]),
            "volume": float(k[5]),
            "timestamp": k[0]
        } for k in klines]
        
        # Get prediction from model
        return await model_router.get_signal(symbol, candles)
        
    except Exception as e:
        logger.error(f"Error generating signal: {e}")
        return {
            "symbol": symbol,
            "timeframe": timeframe,
            "prob_up": 0.5,
            "prob_down": 0.5,
            "confidence": 0,
            "advice": "neutral"
        }
@app.get("/api/risk/check", 
         dependencies=[Depends(get_api_key)],
         response_model=Dict[str, Any])
async def risk_check():
    """Check if trade passes risk parameters"""
    # TODO: Implement risk engine logic
    return {
        "approved": True,
        "max_leverage": 10,
        "max_position_size": 0.5,
        "required_stop_loss": 49000.0
    }

if __name__ == "__main__":
    uvicorn.run("app:app", host="0.0.0.0", port=8000, reload=True)
```