added https withe self sign ssl to backentd and healthcheck to frontend

frontend/src/pages/ErrorPage.vue

@@ -0,0 +1,13 @@
+<template>
+  <div class="fullscreen bg-red-5 text-white flex flex-center column">
+    <div class="text-h5 mb-4">⚠ Error</div>
+    <div class="text-subtitle1">{{ message }}</div>
+  </div>
+</template>
+
+<script setup>
+import { useRoute } from 'vue-router'
+
+const route = useRoute()
+const message = route.query.msg || 'An unknown error occurred.'
+</script>