use bigger model

on_startup.sh

@@ -20,8 +20,8 @@ done
 
 # Try pulling the model up to 3 times if it fails
 for attempt in {1..3}; do
-  echo "Attempt $attempt: Pulling gemma3:4b..."
-  if ollama pull gemma3:4b; then
+  echo "Attempt $attempt: Pulling gemma3:27b-it-qat..."
+  if ollama pull gemma3:27b-it-qat; then
     echo "Model pulled successfully."
     break
   else