added backend which maintains ai instances;

added frontend as control panel

frontend/src/locale/locale.ts

@@ -0,0 +1,32 @@
+import type {I18n} from 'vue-i18n';
+import {createI18n as vueCreateI18n} from 'vue-i18n';
+import {datetimeFormatsEn, messagesEn} from '@/locale/en';
+import {datetimeFormatsDe, messagesDe} from '@/locale/de';
+
+const messages = {
+  en: messagesEn,
+  de: messagesDe,
+};
+
+const datetimeFormats = {
+  en: datetimeFormatsEn,
+  de: datetimeFormatsDe,
+};
+
+export function createI18n(): I18n {
+  let browserLocale = (navigator.language ?? '').toLowerCase();
+  const match = browserLocale.match(/^([a-z][a-z])/);
+  if (match) {
+    browserLocale = match[1];
+  } else {
+    browserLocale = 'en';
+  }
+  return vueCreateI18n({
+    locale: browserLocale,
+    fallbackLocale: 'en',
+    messages: messages,
+    //@ts-ignore TS2769 TODO weird typing issue
+    datetimeFormats: datetimeFormats,
+    legacy: true,
+  });
+}