The viz package existed solely to render one interactive HTML chart for
tx-optimize sweeps, pulling in Plotly — a heavyweight dependency serving a
single artifact while every other timeline renders in-terminal via
braillechart. Drop it with no replacement: delete meshterm/viz, the
--viz/--no-viz flag and its render call, the now-unused output_dir setting
(config field, default, loader, example), the Plotly test, and the README
and pyproject references.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>