Fix: Final runtime errors (backtest_output NameError and TA-Lib TSI attribute error).

Fix: Restore core/data.py from user-provided data_4.py to resolve model training feature error. Re-applied previous app.py fixes.

Fix: Model training failure by ensuring 'value' is always included as a feature in core/data.py

Fix: ImportError for 'preprocess_data' by moving the function from core/data_2.py to core/data.py and deleting data_2.py

Rename core/data_4.py to core/data.py

Rename core/data.py to core/data_3.py

Feature: Integrate StockData.org as a data source. Fix: AttributeError in app.py.

Update core/data.py

Update core/data.py

Rename core/data_5.py to core/data.py

Rename core/data.py to core/data_2.py

Refactor load_data function in core/data.py for robust Alpha Vantage integration and error handling

Refactor load_data function in core/data.py for robust Alpha Vantage integration and error handling

Refactor load_data function in core/data.py for robust Alpha Vantage integration and error handling

Fix syntax and indentation errors in core/data.py for Alpha Vantage integration

Fix syntax and indentation errors in core/data.py for Alpha Vantage integration

Enable Alpha Vantage for intraday timeframes in core/data.py

Fix indentation error in core/plot.py and update app.py for correct data passing.

Update core/data.py

Update core/data.py

Update core/data.py

Update core/data.py

Update core/data.py

Update core/data.py

Update core/data.py

Update core/data.py

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Update core/data.py

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