An edited post's versions open from its card

The card marks an edited post with a button that opens its versions, newest first (/statuses/:id/history), each with
its time, warning and words; PrivaPub now has a remote post's earlier versions from Pleroma's formerRepresentations
too. The composer's e2e test opens the history after its edit. The wall test retries smuser's post while Smithereen
has not yet had the persona's Accept.

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

MastodonJsonContext.cs

@@ -36,6 +36,7 @@ namespace decePubClient;
 [JsonSerializable(typeof(PostStatusForm))]
 [JsonSerializable(typeof(StatusEditForm))]
 [JsonSerializable(typeof(StatusSource))]
+[JsonSerializable(typeof(List<StatusEdit>))]
 [JsonSerializable(typeof(Poll))]
 [JsonSerializable(typeof(PollVoteForm))]
 [JsonSerializable(typeof(MastodonList))]