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Fix timestamp parsing for historical data on Windows #4
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…stamps on Windows and restore full historical XAUUSD data.
…stamps on Windows
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Hi, I found an issue in timestamp parsing on Windows. When fetching symbols
with very old history (e.g. XAUUSD on OANDA), TradingView returns negative
Unix timestamps for pre-1970 data. datetime.fromtimestamp raises OSError on
Windows for negative values, causing get_hist to fail.
Replacing fromtimestamp with an epoch + timedelta(seconds) calculation fixes
the problem and works consistently across Windows, Linux, and macOS.