Modernize MNB Exchange Rate Script to v2.0#3

peter-oroszvari wants to merge 6 commits into

belidzs:developbelidzs/mnb:developfrom

peter-oroszvari:claude/repo-review-011CUoUDiQFLAG29fgEUpUHHpeter-oroszvari/mnb:claude/repo-review-011CUoUDiQFLAG29fgEUpUHHCopy head branch name to clipboard