Fix role issue on Mistral model

app.py

@@ -17,6 +17,7 @@ AVAILABLE_MODELS = {
 # --- Prompt Template ---
 
 PROMPT_TEMPLATE = """
+You are an expert on open-source software compliance and licensing.
 Using **only** the license text provided below, create a concise Markdown
 summary that complies with *all* the rules in this prompt.
 
@@ -81,7 +82,7 @@ def analyze_license(model_display_name, license_text):
     final_prompt = PROMPT_TEMPLATE.format(license_text=license_text)
     
     # Messages to the model in the chat
-    messages = [{"role": "an expert on open-source software licensing", "content": final_prompt}]
+    messages = [{"role": "user", "content": final_prompt}]
 
     try:
         # API call