The shipped machine tool is now MachineTool/Table-B1.default/Table-B1.mt
and the shipped cutting-parameter / workpiece-material files carry the
`.default` marker, so the three hard-coded resource paths move with them.
These samples are compiled into the public docsite verbatim, so a stale
path here ships as documentation.
Also removes the commented-out PmcB1MachineToolSource line and renames
the class summary, both of which put the retired name on the public docs.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>