A located post's author deletes it

A located post's card had no action at all, so whoever wrote one (with this device's position) could not take it back
from the app. The persona's own located card now has Delete, which asks first, without the line about other servers
(a located post never left PrivaPub), and goes through /clientapi/post/delete, since the Mastodon API looks past
located posts. The globe's end-to-end test deletes the post it writes this way.

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

Services/StatusService.cs

@@ -228,6 +228,17 @@ namespace decePubClient.Services
 			return await StatusResult(response, cancellationToken);
 		}
 
+		/// <summary>Deletes the persona's own located post: through /clientapi, since the Mastodon API looks past located posts.</summary>
+		public async Task<WebResult> DeleteLocated(string postId, string personaId, CancellationToken cancellationToken = default)
+		{
+			using var response = await httpService.Post(APIs.ClientApi.POST_DeletePost, new DeletePostForm { AvatarId = personaId, PostId = postId },
+				cancellationToken: cancellationToken);
+			if (!response.IsSuccessStatusCode)
+				return await response.Content.ReadWebResult(response.StatusCode, localizer, cancellationToken);
+
+			return new WebResult();
+		}
+
 		public async Task<Status> Get(string statusId, CancellationToken cancellationToken = default)
 		{
 			using var response = await httpService.Get(APIs.Mastodon.GET_M_Status(statusId), cancellationToken: cancellationToken);