feat: Add backtesting page with dynamic strategy configuration and optimization

requirements.txt

@@ -22,3 +22,7 @@ yfinance
 streamlit>=1.24.0
 plotly>=5.13.0
 streamlit-option-menu>=0.3.2
+
+# Backtesting
+backtesting
+pandas-ta

src/pages/backtesting/__init__.py

@@ -0,0 +1 @@
+# Initialize backtesting package

src/pages/backtesting/backtesting_page.py

@@ -0,0 +1,11 @@
+import streamlit as st
+import pandas_ta as ta
+import pandas as pd
+import numpy as np
+from backtesting import Backtest, Strategy
+from typing import Dict, List, Union
+import itertools
+from datetime import datetime, timedelta
+from src.utils.common_utils import get_stock_data
+
+[... rest of the backtesting_page.py content as provided above ...]

src/streamlit_app.py

@@ -7,6 +7,7 @@ from pages.journal.trading_journal_page import trading_journal_page, format_date
 from pages.screener.technical_scanner_page import technical_scanner_page
 from pages.trading.trading_system_page import trading_system_page
 from pages.trading.trading_plan_page import trading_plan_page
+from pages.backtesting.backtesting_page import backtesting_page
 from trading.journal import (
     create_trades_table, get_open_trades, get_trade_history,
     get_latest_portfolio_value, update_portfolio_value
@@ -30,7 +31,7 @@ def main():
     st.sidebar.title("Navigation")
     st.session_state.page = st.sidebar.radio(
         "Go to",
-        ["Strategy Guide", "Trading Journal", "Technical Scanner", "CANSLIM Screener", "Trading System", "Trading Plans"]
+        ["Strategy Guide", "Trading Journal", "Technical Scanner", "CANSLIM Screener", "Trading System", "Trading Plans", "Backtesting"]
     )
     
     # Create necessary tables
@@ -50,6 +51,8 @@ def main():
         trading_system_page()
     elif st.session_state.page == "Trading Plans":
         trading_plan_page()
+    elif st.session_state.page == "Backtesting":
+        backtesting_page()
 
 if __name__ == "__main__":
     main()