feat(web): wire domain events into realtime stream

src/services/chat/service.ts

@@ -103,6 +103,8 @@ export type SyncProgressListener = (progress: SyncProgress | null) => void;
 
 /** Fired when a chat we sent into first receives a reply from the other party. */
 export type NewReplyListener = (info: {
+  conversationId: string;
+  replyId: string;
   username: string;
   replySnippet: string;
 }) => void;
@@ -806,6 +808,8 @@ export class ChatService {
           this.logger.info(`[chat] stored successful chat example from ${chat.username}`);
           try {
             this.newReplyListener?.({
+              conversationId: chat.roomId,
+              replyId: `${chat.roomId}:${firstReply?.timestamp ?? Date.now()}`,
               username: chat.username,
               replySnippet: firstReply?.text.slice(0, 200) ?? '',
             });