R8 the Mastodon API made real: featured tags, endorsements, notes, notify and languages, suggestions, the direct stream

Featured tags per persona (/api/v1/featured_tags, suggestions, tags/:name/feature, accounts' featured tags, max 10),
listed at /tattoos as Hashtags and sent as Add/Remove{Hashtag} to followers on the featured collection, as Mastodon
sends them; remote accounts' tags received and read from featuredTags. Endorsements (pin/endorse) and private notes
(PersonaNote) kept per persona and never federated; the relationship's notifying, languages, endorsed and note, with
follow's notify (status notifications) and languages (home filter). Reading preferences set on /clientapi. Suggestions
v1/v2 with dismissals and staff picks, never the persona or a sibling. conversation events on the direct stream.
translate, annual reports and the admin API answer. New collections backed up and removed with their persona.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WpVCoDeM1qUTRp4fXQdfof

PrivaPub/Api/Mastodon/Controllers/StreamingController.cs

@@ -41,7 +41,7 @@ namespace PrivaPub.Api.Mastodon.Controllers
 		{
 			switch (name)
 			{
-				case Streams.User or Streams.UserNotification or Streams.Public or Streams.PublicLocal or Streams.PublicRemote:
+				case Streams.User or Streams.UserNotification or Streams.Public or Streams.PublicLocal or Streams.PublicRemote or Streams.Direct:
 					return (new Streams.Key(name), default);
 				case Streams.Hashtag or Streams.HashtagLocal:
 					var normal = TagsController.Normalise(tag);
@@ -69,6 +69,15 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			}
 			if (e.Name == "announcement.reaction")
 				return JsonSerializer.Serialize(await AnnouncementsController.ReactionEvent(e.Id, e.Data, token), MastodonJson.Options);
+			// a direct conversation the persona takes part in (R8): Mastodon's Conversation, as /api/v1/conversations lists it
+			if (e.Name == "conversation")
+			{
+				var group = await _dbEntities.DmGroups.Match(g => g.ID == e.Id && !g.DeletionAt.HasValue && g.Members.Any(m => !m.IsForeign && m.AvatarId == MyId))
+					.ExecuteFirstAsync(token);
+				var conversation = group == default ? default
+					: (await TimelinesController.ConversationsOf(_mapper, _dbEntities, MyId, new List<Models.Group.DmGroup> { group }, token)).FirstOrDefault();
+				return conversation == default ? default : JsonSerializer.Serialize(conversation, MastodonJson.Options);
+			}
 			if (e.Name == "notification")
 			{
 				var notification = await _dbEntities.Notifications.Match(n => n.ID == e.Id && n.AvatarId == MyId).ExecuteFirstAsync(token);