feat(googlechat): improve startup script with URL change detection

- Detect when ngrok URL changes and prompt user to update Google Chat
- Save URL to ~/.clawdbot-googlechat-url for comparison
- Add clear instructions when URL update is needed
- Skip update prompt when URL hasn't changed

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

start-googlechat.sh

@@ -4,7 +4,10 @@
 
 cd "$(dirname "$0")"
 
-echo "Starting Clawdbot Google Chat..."
+CONFIG_FILE="$HOME/.clawdbot-googlechat-url"
+
+echo ""
+echo "🦞 Starting Clawdbot Google Chat..."
 echo ""
 
 # Kill any existing processes
@@ -18,39 +21,63 @@ ngrok http 18792 > /tmp/ngrok.log 2>&1 &
 sleep 4
 
 # Get the ngrok URL
-NGROK_URL=$(curl -s http://localhost:4040/api/tunnels | grep -o '"public_url":"https://[^"]*"' | head -1 | cut -d'"' -f4)
+NGROK_URL=$(curl -s http://localhost:4040/api/tunnels 2>/dev/null | grep -o '"public_url":"https://[^"]*"' | head -1 | cut -d'"' -f4)
 
 if [ -z "$NGROK_URL" ]; then
-    echo "   ERROR: ngrok failed to start. Check your internet connection."
+    echo "   ❌ ERROR: ngrok failed to start. Check your internet connection."
     exit 1
 fi
 
-echo "   ngrok URL: $NGROK_URL"
+WEBHOOK_URL="${NGROK_URL}/webhook/googlechat"
-echo ""
+echo "   ✓ Tunnel active"
+
+# Check if URL changed
+LAST_URL=$(cat "$CONFIG_FILE" 2>/dev/null)
+
+if [ "$NGROK_URL" != "$LAST_URL" ]; then
+    echo ""
+    echo "=========================================="
+    echo "⚠️  NGROK URL CHANGED!"
+    echo "=========================================="
+    echo ""
+    echo "New webhook URL:"
+    echo "$WEBHOOK_URL"
+    echo ""
+    echo "👉 UPDATE GOOGLE CHAT NOW:"
+    echo "   1. Go to: https://console.cloud.google.com/apis/api/chat.googleapis.com/hangouts-chat"
+    echo "   2. Click Clawdbot"
+    echo "   3. Change HTTP endpoint URL to the new URL above"
+    echo "   4. Save"
+    echo ""
+    read -p "Press ENTER after you've updated Google Chat..."
+
+    # Save the new URL
+    echo "$NGROK_URL" > "$CONFIG_FILE"
+else
+    echo "   ✓ Same URL as before - no Google Chat update needed!"
+fi
 
 # Start webhook server
+echo ""
 echo "2. Starting webhook server..."
 npx tsx src/googlechat/run-webhook.ts > /tmp/googlechat-webhook.log 2>&1 &
 sleep 3
 
 # Verify webhook is running
 if lsof -i :18792 > /dev/null 2>&1; then
-    echo "   Webhook running on port 18792"
+    echo "   ✓ Webhook running"
 else
-    echo "   ERROR: Webhook failed to start"
+    echo "   ❌ ERROR: Webhook failed to start"
     exit 1
 fi
 
 echo ""
 echo "=========================================="
-echo "Clawdbot Google Chat is READY!"
+echo "✅ Clawdbot Google Chat is READY!"
 echo "=========================================="
 echo ""
-echo "Webhook URL: ${NGROK_URL}/webhook/googlechat"
+echo "Webhook URL: $WEBHOOK_URL"
 echo ""
-echo "NOTE: If the ngrok URL changed, update it in Google Chat:"
+echo "Logs:  tail -f /tmp/googlechat-webhook.log"
-echo "  https://console.cloud.google.com/apis/api/chat.googleapis.com/hangouts-chat"
+echo "Stop:  pkill -f ngrok && pkill -f run-webhook"
 echo ""
-echo "Logs: tail -f /tmp/googlechat-webhook.log"
-echo ""
-echo "To stop: pkill -f ngrok && pkill -f run-webhook"