Update start.sh

start.sh

@@ -9,8 +9,8 @@ until curl -s http://localhost:11434/api/tags >/dev/null; do
 done
 
 # Pull the model if not already present
-if ! ollama list | grep -q "tinyllama"; then
-    ollama pull tinyllama
+if ! ollama list | grep -q "mistral:instruct"; then
+    ollama pull mistral:instruct
 fi
 
 # Start the FastAPI server