feat: Create a Docker Image around the laravel app

docker/healthcheck.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+set -eu
+
+PORT="${APP_PORT:-8080}"
+
+# 1) App Health
+curl -fsS "http://127.0.0.1:${PORT}/healthz" >/dev/null
+
+# 2) PHP-FPM Ping via Nginx
+curl -fsS "http://127.0.0.1:${PORT}/fpm-ping" >/dev/null
+
+exit 0