UrdaVarg Roadworks 0.14.2-dev10-merged

Base: Survival 0.14.2-dev9-mtr-railmath-tube
Added: Creative 0.1.0-dev10-mtr-railmath-tube

One Fabric mod registration (urdavarg-roadworks), with both Survival and Creative entrypoints.
Survival keeps UrdaVarg Energy dependency and powered/material/time construction.
Creative keeps its separate direct-building nodes, tools, items and namespace.
Both builds contained byte-identical shared MTR/library files.
