Update default persona to Motivational Coach and fix syntax error in app.py

app.py

@@ -4,7 +4,7 @@ from utils import generate_response
 from config import DEFAULT_PERSONA
 
 
-def handle_message(persona, user_input, history):k
+def handle_message(persona, user_input, history):
     """
     Handle a new message in the chat.
 
@@ -72,4 +72,4 @@ with gr.Blocks() as app:
 
 # main function
 if __name__ == "__main__":
-    app.launch()
+    app.launch()

config.py

@@ -17,6 +17,6 @@ OPENROUTER_API_KEY = os.getenv("OPENROUTER_API_KEY", "")
 OPENROUTER_MODEL = os.getenv("OPENROUTER_MODEL", "openai/gpt-4")
 
 # UI + LLM behavior config
-DEFAULT_PERSONA = "Startup Advisor"
+DEFAULT_PERSONA = "Motivational Coach"
 TEMPERATURE = 0.7
 MAX_TURNS = 10