Add debugging print

src/app.py

@@ -60,6 +60,7 @@ def main_headless():
        print('\033[94m' + get_output(agent_resp, input_text) + '\033[0m')
 
 if __name__ == "__main__":
+    print(f"Test env vars: {os.getenv('TEST_SECRET')}")
     if config.headless:
         main_headless()
     else: