add mic on push-to-talk mode, iphone open in phone tab default

src/components/playground/PhoneSimulator.tsx

@@ -1121,8 +1121,25 @@ export function PhoneSimulator({
               {/* Push-to-Talk Mode Layout */}
               {isPushToTalkMode && phoneMode !== "hand_off" && voiceAssistant.agent && (
                 <div className="w-full flex items-center justify-center gap-8">
-                  {/* Camera Switch Button - Left (hidden in important_message mode) */}
+                  {/* Mic Toggle and Camera Switch Buttons - Left (hidden in important_message mode) */}
                   {phoneMode !== "important_message" && (
+                    <div className="flex flex-col items-center gap-2">
+                      {/* Mic Toggle Button */}
+                      <button
+                        className={`p-4 rounded-full backdrop-blur-md transition-colors ${
+                          !isMicEnabled
+                            ? "bg-white text-black"
+                            : "bg-gray-800/50 text-white hover:bg-gray-800/70"
+                        }`}
+                        onClick={handleMicToggle}
+                      >
+                        {isMicEnabled ? (
+                          <MicIcon className="w-6 h-6" />
+                        ) : (
+                          <MicOffIcon className="w-6 h-6" />
+                        )}
+                      </button>
+                      {/* Camera Switch Button */}
                       <div className="relative">
                         <button
                           className="p-4 rounded-full bg-gray-800/50 text-white hover:bg-gray-800/70 transition-colors"
@@ -1151,6 +1168,7 @@ export function PhoneSimulator({
                           </div>
                         )}
                       </div>
+                    </div>
                   )}
 
                   {/* Large Push-to-Talk Button - Center (hidden in important_message mode) */}

src/components/playground/Playground.tsx

@@ -873,7 +873,7 @@ export default function Playground({
           <PlaygroundTabbedTile
             className="h-full"
             tabs={mobileTabs}
-            initialTab={mobileTabs.length - 1}
+            initialTab={0}
           />
         </div>
         <div