db.createUser(
    {
        user: "ocr_user",
        pwd: "ocr_password",
        roles: [
            {
                role: "readWrite",
                db: "ocr_db"
            }
        ]
    }
);

db.createCollection("processed_documents");
db.createCollection("webhook_logs");
db.createCollection("metrics");

// Create indexes
db.processed_documents.createIndex({ "created_at": 1 });
db.processed_documents.createIndex({ "status": 1 });
db.webhook_logs.createIndex({ "timestamp": 1 });
db.metrics.createIndex({ "timestamp": 1 });