Add player filters to app.py for enhanced selection options

Implemented player filters allowing users to select specific positions and set a maximum salary. Updated player selection DataFrame to reflect these filters, improving user experience and data management in lineup creation.

app.py

@@ -844,6 +844,18 @@ with tab4:
     lineup = st.session_state['handbuilder_lineup']
     slot_counts = lineup['Slot'].value_counts() if not lineup.empty else {}
 
+    # --- PLAYER FILTERS ---
+    with st.expander("Player Filters"):
+        col1, col2 = st.columns(2)
+        with col1:
+            pos_var3 = st.selectbox("Which position(s) would you like to view?",  ['All', 'Specific'], key='pos_var2')
+            if pos_var3 == 'Specific':
+                pos_select3 = st.multiselect("Select your position(s)", options=['P', 'C', '1B', '2B', '3B', 'SS', 'OF'], key='pos_select3')
+            else:
+                pos_select3 = None
+        with col2:
+            salary_var = st.number_input("Salary Max", min_value = 0, max_value = 20000, value = 20000, step = 100)
+
     # --- TEAM FILTER UI ---
     with st.expander("Team Filters"):
         all_teams = sorted(handbuild_roo['Team'].unique())
@@ -867,6 +879,13 @@ with tab4:
     else:
         player_select_df = handbuild_roo[['Player', 'Position', 'Team', 'Team_Total', 'Opp_Total', 'Salary', 'Median', '2x%', 'Order', 'Hand', 'Own%']].drop_duplicates(subset=['Player', 'Team']).copy()
     
+    # If no teams selected, show all teams
+    if pos_select3 is not None:
+        position_mask_2 = handbuild_roo['Position'].apply(lambda x: any(pos in x for pos in pos_select3))
+        player_select_df = handbuild_roo[position_mask_2][['Player', 'Position', 'Team', 'Team_Total', 'Opp_Total', 'Salary', 'Median', '2x%', 'Order', 'Hand', 'Own%']].drop_duplicates(subset=['Player', 'Team']).sort_values(by='Order', ascending=True).copy()
+    else:
+        player_select_df = handbuild_roo[['Player', 'Position', 'Team', 'Team_Total', 'Opp_Total', 'Salary', 'Median', '2x%', 'Order', 'Hand', 'Own%']].drop_duplicates(subset=['Player', 'Team']).copy()
+    
     with st.expander("Quick Fill Options"):
         auto_team_var = st.selectbox("Auto Fill Team", options=all_teams)
         auto_size_var = st.selectbox("Auto Fill Size", options=[3, 4, 5])