Hunter Bown
a4102ccad4
The selection-tightening from 7125172f restricted copy/select to user
and assistant cell bodies only, which made it impossible to copy text
from system notes, thinking blocks, or tool output. Drop the
body-start gate so the rendered transcript block is selectable in full.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>