Capitaliza device used

frontend.py

@@ -45,7 +45,7 @@ try:
     if health.status_code == 200:
         data = health.json()
         device = data.get("device", "unknown")
-        st.sidebar.success(f"Backend online · {device}")
+        st.sidebar.success(f"Backend online · {device.upper()}")
     else:
         st.sidebar.warning(f"Backend returned {health.status_code}")
 except requests.exceptions.RequestException:
@@ -131,7 +131,9 @@ if st.session_state.summary_result:
     st.subheader("Summary")
     st.write(st.session_state.summary_result["summary"])
     if st.session_state.summary_result.get("used_device"):
-        st.caption(f"Generated on: {st.session_state.summary_result['used_device']}")
+        st.caption(
+            f"Generated on: {st.session_state.summary_result['used_device'].upper()}"
+        )
 
 st.divider()
 st.caption(