AI Code Review Generator

## Code Review Results

### 🔴 Critical Issues

**1. SQL Injection Vulnerability (Line 23)**
```javascript
// VULNERABLE
const query = `SELECT * FROM users WHERE id = ${userId}`;

// SECURE
const query = 'SELECT * FROM users WHERE id = $1';
const result = await db.query(query, [userId]);
```

**2. Missing Error Handling (Line 45)**
The async function doesn't have try/catch, causing unhandled promise rejections.

### 🟡 Suggestions

**1. Consider using constants for magic numbers**
```javascript
const MAX_RETRIES = 3; // Instead of hardcoded 3
```

**2. Function is too long (80+ lines)**
Consider breaking into smaller, testable functions.

### 🟢 What's Done Well
- Clear variable naming
- Good use of async/await
- Comprehensive input validation