GoToSocial's interaction policies are honoured

A remote post's canReply, canLike and canAnnounce (with the older always and approvalRequired) are kept beside
canQuote and judged for each persona: let in at once when the rule names the public, the persona, the author's
followers while it follows the author, or the accounts the author follows while the author follows it; asked first
when only the manual list names it; refused (422) otherwise. Asked first, a ReplyRequest, LikeRequest or
AnnounceRequest with the interaction as its instrument goes to the author alone, and the interaction waits
(privapub.approval: pending). The author's Accept brings an authorization, verified on the author's origin as naming the
interaction and the post; the reply then goes out with replyAuthorization, the boost with announceAuthorization, the
like with likeAuthorization. A Reject leaves the reply ours alone and takes a like or a boost back. As a third party, a
reply a policy does not let in at once is kept only with an authorization that verifies. Clients see the rules as
GoToSocial's interaction_policy.

Checked live against GoToSocial 0.22.1: the scenario's nine new checks pass (64 in all), a reply and a like approved
through its interaction requests and a boost refused.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

PrivaPub.Tests/Support/Harness.cs

@@ -51,12 +51,13 @@ namespace PrivaPub.Tests.Support
 			RemotePosts = new RemotePosts(Db, Local, Remote, new NoBlocks(), Queue, Records, new NoPreviews());
 			Outbox = new OutboxPublisher(Db, Local, Delivery);
 			Quotes = new QuoteService(Db, Remote, RemotePosts, Local, Delivery, Outbox);
+			Approvals = new InteractionApprovals(Db, Remote, Local, Delivery, Outbox);
 			Receiver = new InboxReceiver(Local, Remote, Queue, new NoBlocks(), NullLogger<InboxReceiver>.Instance, Ledger);
 			Handlers = new IActivityHandler[]
 			{
 				new FollowHandler(Db, Local, Remote, Delivery),
-				new AcceptHandler(Db, Local, Quotes),
-				new RejectHandler(Db, Local, Quotes),
+				new AcceptHandler(Db, Local, Quotes, Approvals),
+				new RejectHandler(Db, Local, Quotes, Approvals),
 				new UndoHandler(Db, Local, Reactions),
 				new LikeHandler(Db, Reactions),
 				new EmojiReactHandler(Db, Reactions),
@@ -64,7 +65,7 @@ namespace PrivaPub.Tests.Support
 				new DislikeHandler(Db),
 				new JoinHandler(Db, Local, Delivery),
 				new AnnounceHandler(Db, Local, RemotePosts, Fanout, Remote, Records, Quotes),
-				new CreateHandler(Db, Local, Remote, Delivery, new NoBlocks(), Fanout, RemotePosts, Groups, Records, Polls, new NoPreviews(), Quotes),
+				new CreateHandler(Db, Local, Remote, Delivery, new NoBlocks(), Fanout, RemotePosts, Groups, Records, Polls, new NoPreviews(), Quotes, Approvals),
 				new DeleteHandler(Db, Local, Remote, Delivery, Groups, Quotes),
 				new UpdateHandler(Db, Local, Remote, Groups, Records, Quotes),
 				new FlagHandler(Db, Local),
@@ -76,7 +77,7 @@ namespace PrivaPub.Tests.Support
 			Content = new ContentRenderer(Local, Remote);
 			Media = new MediaService(new StaticOptions<MediaOptions>(new MediaOptions { Root = Path.Combine(Path.GetTempPath(), $"privapub-media-{Guid.NewGuid():N}") }),
 				Local, default, NullLogger<MediaService>.Instance);
-			Statuses = new StatusService(Db, Local, Remote, Delivery, Content, Outbox, Fanout, Media, Groups, Polls, new NoPreviews(), Quotes);
+			Statuses = new StatusService(Db, Local, Remote, Delivery, Content, Outbox, Fanout, Media, Groups, Polls, new NoPreviews(), Quotes, Approvals);
 			Posts = new PostsService(Db, Local, Statuses, new KeyLocalizer<GenericRes>(), NullLogger<PostsService>.Instance);
 			Timelines = new TimelineService(Db, new KeyLocalizer<GenericRes>());
 			Relationships = new RelationshipService(Db, Follows, Delivery);
@@ -106,6 +107,7 @@ namespace PrivaPub.Tests.Support
 		public PollService Polls { get; }
 		public Reactions Reactions { get; }
 		public QuoteService Quotes { get; }
+		public InteractionApprovals Approvals { get; }
 		public TimelineService Timelines { get; }
 		public RelationshipService Relationships { get; }
 		public ReportService Reports { get; }