Refactor project to use Vite: Remove Vue CLI configuration files and update package.json to integrate Vite for development and build processes. Adjust HTML structure for improved asset loading and streamline dependencies in package-lock.json.

vite.config.js

@@ -0,0 +1,35 @@
+import { defineConfig } from 'vite';
+import vue from '@vitejs/plugin-vue';
+import { fileURLToPath, URL } from 'node:url';
+
+// Vite: wir halten es erstmal möglichst nah an der bisherigen Vue-CLI-Dev-Experience.
+// - Dev-Proxy /api -> Backend
+// - Build nach dist/ (wie gewohnt), danach copy-dist -> public/ (bestehender Deploy-Flow)
+export default defineConfig(({ mode }) => {
+  const backendTarget = process.env.VITE_BACKEND_PROXY || 'http://torstens:3010';
+
+  return {
+    plugins: [vue()],
+    resolve: {
+      alias: {
+        '@': fileURLToPath(new URL('./src', import.meta.url)),
+      },
+    },
+    server: {
+      host: 'localhost',
+      port: Number(process.env.VITE_FRONTEND_PORT || process.env.FRONTEND_PORT || 8080),
+      proxy: {
+        '/api': {
+          target: backendTarget,
+          changeOrigin: true,
+          secure: false,
+        },
+      },
+    },
+    build: {
+      outDir: 'dist',
+      sourcemap: true,
+    },
+  };
+});
+