feat(voice): on-device voice tier — Gemma 4, Moonshine and Kokoro in the browser

server/standalone/vite.config.js

@@ -18,6 +18,7 @@ export default defineConfig(({ command, mode }) => {
     cesiumToken: process.env.CESIUM_ION_TOKEN,
     host: process.env.HOST,
     port: process.env.PORT,
+    naturalVoice: process.env.GEV_NATURAL_VOICE,
     command,
   });
 });