/nextjs-api-route

Create a Next.js Route Handler with proper HTTP methods and error handling.

# Generate Next.js API Route

Create a Next.js Route Handler with proper HTTP methods and error handling.

## Arguments
- `$ARGUMENTS` - API route path and methods (e.g., "posts with GET, POST, PUT, DELETE")

## Instructions

Create a Route Handler based on the provided path and methods:

1. **Analyze Requirements**
   - Parse route path from `$ARGUMENTS`
   - Identify required HTTP methods
   - Determine if route is dynamic ([id], [slug])
   - Check if authentication is needed

2. **Implementation**
   - Create route.ts in app/api directory
   - Implement requested HTTP methods
   - Add pr...