Support for direct camera ALPR data without CodeProject.AI dependency

Problem:
I have a Hikvision ANPR camera that already does plate recognition and sends data to Home Assistant. The current API requires CodeProject.AI format, but I already have the processed data.

Requested Feature:
Add a simple REST endpoint for direct ALPR data submission:

POST /api/plate-reads/direct Headers: x-api-key: YOUR_API_KEY { "plate_number": "ABC1234", "timestamp": "2025-01-15T10:30:00Z", "camera": "entrance_gate", "direction": "FORWARD", // or "REVERSE" "image_base64": "data:image/jpeg;base64,..." }