Comments on plays

- Anyone who can see a play can read its comments; the player and the people they follow can write.
  The author, the player and admins can delete; comments can be reported (admins see the text).
- Notifications: "commented on" for the player, "replied on" for earlier commenters, each with its
  own setting. Reaction and comment notifications now open the play.
- A 💬 chip with the count next to reactions on the feed and recent plays, opening the thread on
  the app (/play/[id]) and the website. Threads refresh every few seconds while open.
- Blocking removes comments between the two people. Plays with comments survive history trimming.
- Privacy page updated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011Y2iUsKEWDuRGjK5FPmcUP

apps/api/src/routes/admin.ts

@@ -40,6 +40,7 @@ export async function adminRoutes(app: FastifyInstance) {
       createdAt: report.createdAt.toISOString(),
       reporter: by ? toUserSummary(by) : null,
       reported: { ...toUserSummary(who), suspended: Boolean(who.suspendedAt) },
+      comment: report.commentBody ? { id: report.commentId, body: report.commentBody } : null,
     }));
   });