A post on a wall says whose, and the persona takes posts off its own

PrivaPub hosts what a persona's followers write on its wall (Smithereen's, FEP-400e) and shows posts written on walls
elsewhere to their owners' followers. A card names the wall (privapub.wall, data-wall, linking the profile), and one
written on the persona's own wall is taken off from the card's menu, which PrivaPub tells as a Remove and Smithereen
applies as a deletion. WallTests checks it against Smithereen.

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

Components/Content.razor

@@ -118,6 +118,16 @@
 					</span>
 				</header>
 
+				@if (status.Privapub?.Wall is { } wall)
+				{
+					<p class="inline-flex items-center gap-2 min-w-0 text-xs opacity-80" data-wall="@wall.Acct">
+						<i class="ion-md-clipboard" aria-hidden="true"></i>
+						<a class="truncate" href="@($"account/{Uri.EscapeDataString(wall.Id)}")" title="@wall.Acct">
+							@Localizer["On the wall of {0}", wall.Name]
+						</a>
+					</p>
+				}
+
 				@if (Warnings.Count > 0 && !showFiltered)
 				{
 					<div class="flex flex-wrap items-center gap-2 text-sm rounded-lg neo-inset neo-2xs px-3 py-2" data-filtered>
@@ -298,6 +308,13 @@
 												<span>@Localizer["Quote"]</span>
 											</DButton>
 										}
+										@if (IsOnOwnWall(status))
+										{
+											<DButton Size="DSize.Sm" class="justify-start whitespace-nowrap" Disabled="IsDefaultDisabled || isActing" OnClick="TakeOffWall" data-take-off-wall>
+												<i aria-hidden="true" class="ion-md-trash text-base text-error"></i>
+												<span>@Localizer["Take off my wall"]</span>
+											</DButton>
+										}
 										@if (!IsOwn)
 										{
 											<DButton Size="DSize.Sm" class="justify-start whitespace-nowrap" Disabled="IsDefaultDisabled || isActing" OnClick="@(() => AccountAction("mute"))">
@@ -828,6 +845,25 @@
 		await OnDeleted.InvokeAsync(Post);
 	}
 
+	// someone's post on the persona's wall: its owner deletes it there (PrivaPub tells the wall's readers, and Smithereen
+	// deletes the post)
+	bool IsOnOwnWall(Status status) => !IsOwn && status.Privapub?.Wall?.Id is { } owner && owner == CascadingState.PersonaId;
+
+	async Task TakeOffWall()
+	{
+		isActing = true;
+		var result = await StatusService.Delete(Status.Id);
+		isActing = false;
+		if (result.IsInvalid)
+		{
+			Toast.AddResponseError(result);
+			return;
+		}
+
+		Toast.AddResponseSuccess(Localizer["Taken off your wall."]);
+		await OnDeleted.InvokeAsync(Post);
+	}
+
 	async Task AccountAction(string action)
 	{
 		isActing = true;