Walks the display list (as the PDF and PNG exports draw it) for glyph id 0
and names each by code point, capped at 256 distinct. Chart/SmartArt label
runs and equation runs now carry per-glyph text ranges.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FypgCX8G9hbs6XYZFsgjbL