London open range — notes, not a backtest

Working name: first 15-minute range after 07:00 London, on EUR/USD. Entry logic is not finished. Exit logic is blank. I do not have a stop distance, a sample size, a spread assumption, or a drawdown. I will not invent a profit factor to make the note look complete. If you have published those fields for a similar session rule, link the write-up. Code is welcome as text. Nothing here is executed.