Bug: Locale-independent numeric parsing regression – Windows build failure and incorrect parsing

Bug: Locale-independent numeric parsing regression – Windows build failure and incorrect parsing: a task in LegoFlow-SWE (Harbor dataset). Platform/Environment - Windows builds using MinGW-w64 targeting Windows 7 (linking against older msvcrt.dll variants). - The regression also affects runtime…

The task

**Platform/Environment** - Windows builds using MinGW-w64 targeting Windows 7 (linking against older `msvcrt.dll` variants). - The regression also affects runtime parameter parsing on all platforms.

Part of Lego-X/LegoFlow-SWE.