Robot Ip input & cache

public/app.js

@@ -566,9 +566,26 @@ function flashHotword(utterance, score) {
   hotwordTimer = setTimeout(() => el.classList.remove('active'), 3000);
 }
 
-// ── Init ──────────────────────────────────────────────────────────────────────
+// ── Menu: Robot & Mode Selection ────────────────────────────────────────────
+
+let selectedRobot = null;
+let selectedMode = 'commander';
+
+// Get the selected robot and mode from sessionStorage
+function initializeMode() {
+  selectedRobot = sessionStorage.getItem('selectedRobot') || 'jibo-001';
+  selectedMode = sessionStorage.getItem('selectedMode') || 'commander';
+}
+
+// Back to home button
+document.getElementById('btn-back-home')?.addEventListener('click', () => {
+  window.location.href = 'index.html';
+});
+
+// ── Initialization ───────────────────────────────────────────────────────────
 
 connectWS();
+initializeMode();
 
 // Populate LLM fields from server config (.env defaults)
 get('/api/config').then(cfg => {