Add production build optimizations to Vite configuration; set target, output directory, and minification options for improved performance

frontend/vite.config.js

@@ -17,6 +17,31 @@ export default defineConfig({
         changeOrigin: true
       }
     }
-  }
+  },
+  build: {
+    // Produktions-Build-Optimierungen
+    target: 'es2015',
+    outDir: 'dist',
+    assetsDir: 'assets',
+    sourcemap: false,
+    minify: 'terser',
+    terserOptions: {
+      compress: {
+        drop_console: true, // Console-Logs in Produktion entfernen
+        drop_debugger: true
+      }
+    },
+    rollupOptions: {
+      output: {
+        manualChunks: {
+          // Code-Splitting für bessere Performance
+          'vue-vendor': ['vue', 'vue-router', 'pinia']
+        }
+      }
+    },
+    chunkSizeWarningLimit: 1000
+  },
+  // Base-URL für Produktion
+  base: '/'
 })