The two arch docs and the plans index still described ETR as the old
scaffold (just ±50 wrap + [17,35] bands, "RESTORE_GAIN + coupling
unfitted"). Bring them current: five-zone bistable axis with snap-across
flips, the why/how axis semantics (provenance/continuity · burden ·
double-down/dodge), implemented & tested in Octave (26/0/1) + R port (31),
only L5 coupling open. A8 index status updated from bare SCAFFOLD.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015hmgREHNsxYCuim33yUF2c