feat: add DEFAULT_URI environment variable

Author: 7-zete-7

compose.yaml

@@ -5,6 +5,7 @@ services:
     restart: unless-stopped
     environment:
       SERVER_NAME: ${SERVER_NAME:-localhost}, php:80
+      DEFAULT_URI: https://${SERVER_NAME:-localhost}:${HTTPS_PORT:-443}
       MERCURE_PUBLISHER_JWT_KEY: ${CADDY_MERCURE_JWT_SECRET:-!ChangeThisMercureHubJWTSecretKey!}
       MERCURE_SUBSCRIBER_JWT_KEY: ${CADDY_MERCURE_JWT_SECRET:-!ChangeThisMercureHubJWTSecretKey!}
       # Run "composer require symfony/orm-pack" to install and configure Doctrine ORM