Update app.py

Updated the prompt

app.py

@@ -71,15 +71,14 @@ def build_prompt(filename: str, issues: list):
         f"- {item['message']} at line {item['line']}"
         for item in issues
     ])
+
     prompt = f"""
-You are a C++ expert. The code below may violate MISRA C++:2012 rules.
-Source code:
-Issues:
-{summary}
+    You are a C++ expert. The code below may violate MISRA C++:2012 rules.
+    Source code:
+    Issues:
+    {summary}
+    …"""
 
-For each issue, suggest a concise patch (diff format) to fix it.
-Only output the unified diff, no extra commentary.
-"""
     return prompt.strip()
 
 def predict_patch(prompt: str):