Update environment configuration for PostgreSQL: Add new environment variables for NextAuth and PostgreSQL settings in .env file, update docker-compose.yml to utilize these variables, and enhance README documentation for environment setup. Ensure DATABASE_URL is constructed dynamically if not defined.

docker-compose.yml

@@ -35,6 +35,9 @@ services:
       - "3040:3000"
     environment:
       - NODE_ENV=production
+      - POSTGRES_USER=${POSTGRES_USER:-gotgaming}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-change-this-in-production}
+      - POSTGRES_DB=${POSTGRES_DB:-gotgaming}
       - DATABASE_URL=postgresql://${POSTGRES_USER:-gotgaming}:${POSTGRES_PASSWORD:-change-this-in-production}@got-postgres:5432/${POSTGRES_DB:-gotgaming}?schema=public
       - NEXTAUTH_URL=${NEXTAUTH_URL:-http://localhost:3000}
       - NEXTAUTH_SECRET=${NEXTAUTH_SECRET:-change-this-secret-in-production}