fix: ensure that baselines show up across filters

app.py

@@ -200,13 +200,14 @@ def update_leaderboard(show_percentage, selected_groups, compact_view, cached_df
     # Use cached dataframe instead of re-downloading
     df_to_format = cached_df.copy()
 
-    # Apply training set filter
+    # Apply training set filter (baselines always shown regardless of filter)
+    ALWAYS_SHOW_MODELS = {'AFLOW', 'Alexandria', 'OQMD'}
     if training_set_filter and training_set_filter != "All" and 'training_set' in df_to_format.columns:
-        df_to_format = df_to_format[
-            df_to_format['training_set'].apply(
-                lambda x: training_set_filter in parse_training_set(x)
-            )
-        ]
+        mask = (
+            df_to_format['training_set'].apply(lambda x: training_set_filter in parse_training_set(x)) |
+            df_to_format['model_name'].isin(ALWAYS_SHOW_MODELS)
+        )
+        df_to_format = df_to_format[mask]
 
     # Convert display name back to raw column name for sorting
     if sort_by and sort_by != "None":