Export drill/practice hands from GTO Wizard in a standard .txt hand history

Though drill hands are very useful within GTO Wizard, the lack of a portable export format and the limitations of the current in-platform review tools make them unsuitable for a serious study workflow, especially for players who incorporate exploitable deviations from optimal frequencies into their strategy.

This would help users review practice sessions, experiment with new strategies, archive mistakes, and build proper review workflows. The export should ideally include positions, stacks, actions, sizings, board runout, and the user’s chosen action.