feat: better healthcheck and prevent useless composer install calls

docker/caddy/Caddyfile

@@ -2,7 +2,7 @@
 	{$CADDY_GLOBAL_OPTIONS}
 }
 
-{$SERVER_NAME:localhost} 
+{$SERVER_NAME:localhost}
 
 {$CADDY_EXTRA_CONFIG}
 
@@ -19,10 +19,6 @@ log {
 }
 
 route {
-	# Healthcheck URL
-	respond /healthz 200
-	skip_log /healthz
-
 	root * /srv/app/public
 	mercure {
 		# Transport to use (default to Bolt)

docker/php/docker-entrypoint.sh

@@ -27,7 +27,7 @@ if [ "$1" = 'php-fpm' ] || [ "$1" = 'php' ] || [ "$1" = 'bin/console' ]; then
 		fi
 	fi
 
-	if [ "$APP_ENV" != 'prod' ]; then
+	if [ ! -d 'vendor/' ]; then
 		composer install --prefer-dist --no-progress --no-interaction
 	fi