A damaged DWG opens partially since #859 and the drawing's read notes
say how many object records were left out. OPEN echoes them and MCP
`open` returns them as `warnings`, but `cadcraft-cli info` and
`convert` stayed silent: a corpus round trip wrote thousands of skipped
records away without a word.
- convert: each read note goes to stderr as `IN: <note>`, next to the
skipped-records warning (#872). The exit code stays 0.
- drawing.inspect (and so info, MCP inspect_drawing and the control
channel): new field `readNotes`, next to `skipped`. Existing fields
are unchanged.
- run already prints OPEN's notes with the session log.
- README and docs/control-protocol.md say where the notes appear.
Part of #1039.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
