Stop tracking resources/ (specifications and design notes that stay private)
and move the only fixtures the code needs, the canvas text cases and baseline
anchors, to corpus/canvas. The COM schema used by feature_fixture.py comes
from ONENOTE_2010_XSD instead of the tree. The lab tooling reads ONE_VM_HOME
and ONE_WIN7_ISO from an untracked .env (see .env.example) and no longer
knows any machine or volume; the physical-box driver that reached a Windows 7
machine over the network is retired to tools/w7/wayback unchanged, and the
clones are the only targets.

Assisted-by: claude-fable-5.1