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/Infrastructure/Backup/ProtectiveMerge.cs

@@ -102,7 +102,8 @@ namespace PrivaPub.Infrastructure.Backup
 						report.PersonasDeleted++;
 					await avatars.ReplaceOneAsync(Id(avatar["_id"]), avatar, cancellationToken: token);
 					// what RootRemoval takes with a persona, which the backup still had
-					foreach (var collection in new[] { "PersonaListMember", "PersonaList", "PersonaFilter", "FollowedTag", "ScheduledStatus" })
+					foreach (var collection in new[] { "PersonaListMember", "PersonaList", "PersonaFilter", "FollowedTag", "ScheduledStatus",
+						"FeaturedTag", "Endorsement", "PersonaNote", "SuggestionDismissal" })
 						await database.GetCollection<BsonDocument>(collection).DeleteManyAsync(new BsonDocument("AvatarId", avatar["_id"].ToString()), token);
 					continue;
 				}

PrivaPub/Infrastructure/Data/Indexes.cs

@@ -59,6 +59,20 @@ namespace PrivaPub.Infrastructure.Data
 			await Plain<AnnouncementReaction>(token, r => r.AvatarId);
 			// the server's custom emoji, one per shortcode whatever its case (a new collection, R7)
 			await Unique<LocalEmoji>(e => e.Key, Builders<LocalEmoji>.Filter.Gt(e => e.Key, ""), token);
+			// what the Mastodon API keeps per persona (new collections, R8): one featured hashtag per persona and name, one per
+			// account elsewhere and name, one endorsement, note and dismissal per persona and account
+			await DB.Default.Index<FeaturedTag>().Key(t => t.AvatarId, KeyType.Ascending).Key(t => t.Name, KeyType.Ascending)
+				.Option(o => o.Unique = true).CreateAsync(token);
+			await DB.Default.Index<RemoteFeaturedTag>().Key(t => t.ActorURI, KeyType.Ascending).Key(t => t.Name, KeyType.Ascending)
+				.Option(o => o.Unique = true).CreateAsync(token);
+			await DB.Default.Index<Endorsement>().Key(e => e.AvatarId, KeyType.Ascending).Key(e => e.TargetAccountId, KeyType.Ascending)
+				.Option(o => o.Unique = true).CreateAsync(token);
+			await Plain<Endorsement>(token, e => e.TargetAccountId);
+			await DB.Default.Index<PersonaNote>().Key(n => n.AvatarId, KeyType.Ascending).Key(n => n.TargetAccountId, KeyType.Ascending)
+				.Option(o => o.Unique = true).CreateAsync(token);
+			await Plain<PersonaNote>(token, n => n.TargetAccountId);
+			await DB.Default.Index<SuggestionDismissal>().Key(d => d.AvatarId, KeyType.Ascending).Key(d => d.AccountId, KeyType.Ascending)
+				.Option(o => o.Unique = true).CreateAsync(token);
 			// the staff's log, read newest first
 			await DB.Default.Index<Models.AdminAction>().Key(a => a.At, KeyType.Descending).CreateAsync(token);