feat: add serve-client and start-test-environment scripts, enhance voice-client with debugging info

example/serve-client.js

@@ -0,0 +1,29 @@
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
+const PORT = 3000;
+
+// Create a simple HTTP server to serve the voice client HTML
+const server = http.createServer((req, res) => {
+  if (req.url === '/' || req.url === '/index.html') {
+    const htmlPath = path.join(__dirname, 'voice-client.html');
+    fs.readFile(htmlPath, (err, data) => {
+      if (err) {
+        res.writeHead(500);
+        res.end('Error loading voice-client.html');
+        return;
+      }
+      res.writeHead(200, {'Content-Type': 'text/html'});
+      res.end(data);
+    });
+  } else {
+    res.writeHead(404);
+    res.end('Not found');
+  }
+});
+
+server.listen(PORT, () => {
+  console.log(`Voice client available at: http://localhost:${PORT}`);
+  console.log(`Make sure to also start the WebSocket server with: npm run ws:server`);
+});