Fix indentation errors - use consistent 4-space indentation

app.py

@@ -95,10 +95,10 @@ def app_handle(email_text):    # frontend wrapper - keep syncronous
     formatted_text = format_response_text(result)
     return result, formatted_text
 
-def format_response_text(result):"""Format JSON response into readable text"""
-            if not result:
-                        return "No response generated."
-
+def format_response_text(result):
+    """Format JSON response into readable text"""
+    if not result:
+        return "No response generated."
                     formatted = f"""📧 **Email Response Generated**
 
                     **Type:** {result.get('type', 'N/A').title()}