Adds new §The visible-mechanism vocabulary section between §The
body-caste gradient and §Sumptuary fabrication. Codifies joint-design
and tongue-visibility as paired defining-factor visual axes that
follow the flesh = status spine; principle locked, per-tier specifics
exploration-pending the body-mesh authoring pass.
Reshapes §Open question §"Specific tier-distinguishing visual cues"
to acknowledge the visible-mechanism axis is now named.
Strips the metadata blockquote header and version footer per the new
repo discipline (filename = identity, git = changelog, content =
content). Doc opens directly with §What this is.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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