Update app.py (#98)

- Update app.py (a5b5e86cfbd82632bb256669ad475c0d344462bb)

app.py

@@ -1034,6 +1034,7 @@ def play_page():
                     "correct_flags": flags
                 }
                 unified_push_leaderboard(row)
+                save_score_to_csv(row)
 
                 # Auto-close game if needed
                 if game.get('auto_close', True):
@@ -1195,6 +1196,14 @@ def leaderboard_page():
     st.header("🏆 Leaderboard")
 
     # Get leaderboard data
+    with open(LEADERBOARD_FILE, "rb") as f:
+    st.download_button(
+        "⬇ Download Leaderboard CSV",
+        f,
+        file_name="leaderboard.csv",
+        mime="text/csv"
+    )
+
     leaderboard = unified_get("leaderboard") or []
 
     if not leaderboard: