Add team filter UI in Handbuilder tab of app.py to allow users to toggle team selections, enhancing player selection flexibility and improving user experience.

app.py

@@ -810,8 +810,27 @@ with tab4:
         st.session_state.handbuilder_editor_key += 1  # Change the key to force reset
         st.rerun()
 
-    # Prepare the player selection DataFrame (fresh on every rerun)
-    player_select_df = dk_roo[['Player', 'Position', 'Team', 'Salary', 'Median', 'Order', 'Hand', 'Own%']].copy()
+    # --- TEAM FILTER UI ---
+    all_teams = sorted(dk_roo['Team'].unique())
+    st.markdown("**Toggle teams to include:**")
+    team_cols = st.columns(len(all_teams) // 8 + 1)  # Spread switches across columns
+
+    selected_teams = []
+    for idx, team in enumerate(all_teams):
+        col = team_cols[idx % len(team_cols)]
+        if f"handbuilder_team_{team}" not in st.session_state:
+            st.session_state[f"handbuilder_team_{team}"] = False
+        checked = col.toggle(team, value=st.session_state[f"handbuilder_team_{team}"], key=f"handbuilder_team_{team}")
+        if checked:
+            selected_teams.append(team)
+
+    # If no teams selected, show all teams
+    if selected_teams:
+        player_select_df = dk_roo[
+            dk_roo['Team'].isin(selected_teams)
+        ][['Player', 'Position', 'Team', 'Salary', 'Median', 'Order', 'Hand', 'Own%']].copy()
+    else:
+        player_select_df = dk_roo[['Player', 'Position', 'Team', 'Salary', 'Median', 'Order', 'Hand', 'Own%']].copy()
     player_select_df['Select'] = False  # Add a checkbox column
 
     col1, col2 = st.columns([1, 2])