Reactions

Per-comment and per-discussion reactions.

📄️Get reaction counts for a comment

Returns aggregate counts grouped by `reaction_type` for a single comment. Read-only; safe for unauthenticated widget calls behind the API key.

📄️Toggle a reaction on a comment

End-user toggles a reaction type on a comment. Re-posting the same `reaction_type` removes the prior reaction; a different type is added alongside (a user can hold several reaction types on one comment). Allowed types default to like|love|laugh|surprise|sad|angry, tenant- tunable via the `allowedReactions` setting. Emits a `reaction_toggled` SSE event.