feat: Add buy/sell direction selector to trading journal page

src/streamlit_app.py

@@ -149,6 +149,13 @@ def trading_journal_page():
         
         ticker = st.text_input("Ticker Symbol").upper()
         
+        # Add direction selection
+        direction = st.selectbox(
+            "Direction",
+            ["Buy", "Sell"],
+            key="trade_direction"
+        )
+        
         if ticker:
             # Show existing positions for this ticker
             existing_positions = get_position_summary(ticker)
@@ -206,7 +213,8 @@ def trading_journal_page():
                         position_id=position_id,
                         followed_rules=followed_rules,
                         entry_reason=entry_reason,
-                        notes=notes
+                        notes=notes,
+                        direction=direction.lower()  # Add direction parameter
                     )
                     
                     add_trade(trade)