Pre-release: CoDaWork 2026 Methods Challenge (MC-4) Body (short):

Working draft of the Higgins Unity Framework, packaged for review by the CoDa community.
Included in this release:

MC-4 Methods Challenge packet (PDF, 11 pages)
EMBER sample compositions — Germany, Japan, UK (2000–2025), 9 fuel types, CoDa-ready CSV
Metric correction note (L2 vs TV distance)

This is a pre-release. The central claim (MC-4) is structured as a falsifiable challenge — four defeat paths are specified in the packet.
Full repo: https://github.com/PeterHiggins19/Higgins-Unity-Framework