feat: implement comments with threading support
Add comment creation, display, and data model with full reply threading. Comments are stored with root (track) and parent (immediate parent) refs per the AT Protocol lexicon, exposing cid on CommentView to unblock reply creation. Lexicon text limit aligned to 300 chars.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: mejsiejdev <mejsiejdev@gmail.com>
authored by
tangled.org
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