add_comment (POST /idr/v1/comments) and list_comments (GET /idr/v1/comments)
close the gap the Demisto integration never covered: the investigation comment
thread is where an analyst's reasoning is recorded, and a playbook could neither
write into it nor read it back.
The Comments API is v1-only and has no multi-customer parameter, so neither
command takes api_version. It addresses its target by RRN; the short
investigation ID the other v1 endpoints accept is refused with a 400 that names
no parameter, so both commands reject a non-RRN up front and say why.
list_comments walks the pages (size capped at 100 by the API) up to `limit`, or
all of them with all_results, with a 50-page backstop.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
