R4 the client catches up: follow requests, followers, downvotes, dismissing, filtering a post, quote policies, statistics in detail

Follow requests answered on the persona's own profile and from the Notifications tab; its followers and the accounts it
follows listed there, a follower removed (asked first). Downvotes on threadiverse posts, after the public-vote notice.
A notification dismissed from its line. "Filter this post" from a card's menu, and the Filters page showing the posts a
filter holds. Who may quote the persona's own posts, and revoking a quote of one. Statistics: a server in detail with
"describe again", the ledger's events, the server's own days. The composer deletes an upload taken out before posting.
MediaType.Documents goes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WpVCoDeM1qUTRp4fXQdfof

Services/AdminService.cs

@@ -10,7 +10,8 @@ namespace decePubClient.Services
 {
 	/// <summary>
 	/// What PrivaPub's moderators and administrators do as the root: reports (/clientapi/moderator), servers blocked
-	/// for the whole instance and the federation statistics (/clientapi/admin). PrivaPub checks the root's role on every
+	/// for the whole instance, the federation statistics (the overview, the servers, one server's days and events, the
+	/// ledger's events, the server's own days) and the backups (/clientapi/admin). PrivaPub checks the root's role on every
 	/// call. Lists come back empty and values null on failure; nothing throws.
 	/// </summary>
 	public class AdminService(IHttpService httpService, ILoggingService logger, CoalescingStringLocalizer localizer)
@@ -160,6 +161,61 @@ namespace decePubClient.Services
 			return null;
 		}
 
+		/// <summary>One server: what it says of itself, its days (counters keyed as the ledger keys them) and its latest 100
+		/// events; null when PrivaPub knows nothing of it or it cannot be read.</summary>
+		public async Task<ViewHostDetail> Host(string host, int days, CancellationToken cancellationToken = default)
+		{
+			using var response = await httpService.Get(APIs.ClientApi.GET_M_StatisticsHost(host), [$"days={days}"], cancellationToken: cancellationToken);
+			if (response.IsSuccessStatusCode)
+				return await response.DefaultReadFromJsonAsync<ViewHostDetail>(cancellationToken);
+
+			if (response.StatusCode is not HttpStatusCode.NotFound)
+				await LogFailure(response, nameof(Host), cancellationToken);
+			return null;
+		}
+
+		/// <summary>Asks PrivaPub to read the server's NodeInfo and instance description again (a queued job, answered 202).</summary>
+		public async Task<WebResult> Describe(string host, CancellationToken cancellationToken = default)
+		{
+			using var response = await httpService.Post(APIs.ClientApi.POST_M_StatisticsDescribe(host), cancellationToken: cancellationToken);
+			return response.IsSuccessStatusCode ? new WebResult() : await response.Content.ReadWebResult(response.StatusCode, localizer, cancellationToken);
+		}
+
+		/// <summary>The ledger's events, newest first, those before `before` when given (the next page starts at the last
+		/// one's time); each filter is left out when null.</summary>
+		public async Task<List<ViewInteractionEvent>> Events(string host, string channel, string outcome, string reason, DateTime? before, int limit,
+			CancellationToken cancellationToken = default)
+		{
+			var parameters = new List<string> { $"limit={limit}" };
+			if (host is { Length: > 0 })
+				parameters.Add($"host={Uri.EscapeDataString(host)}");
+			if (channel is { Length: > 0 })
+				parameters.Add($"channel={Uri.EscapeDataString(channel)}");
+			if (outcome is { Length: > 0 })
+				parameters.Add($"outcome={Uri.EscapeDataString(outcome)}");
+			if (reason is { Length: > 0 })
+				parameters.Add($"reason={Uri.EscapeDataString(reason)}");
+			if (before is { } at)
+				parameters.Add($"before={Uri.EscapeDataString(at.ToUniversalTime().ToString("o", System.Globalization.CultureInfo.InvariantCulture))}");
+			using var response = await httpService.Get(APIs.ClientApi.GET_StatisticsEvents, [.. parameters], cancellationToken: cancellationToken);
+			if (response.IsSuccessStatusCode)
+				return await response.DefaultReadFromJsonAsync<List<ViewInteractionEvent>>(cancellationToken) ?? [];
+
+			await LogFailure(response, nameof(Events), cancellationToken);
+			return [];
+		}
+
+		/// <summary>The server's own days, oldest first: its client API, the documents it served and its ledger.</summary>
+		public async Task<List<ViewServerDay>> ServerDays(int days, CancellationToken cancellationToken = default)
+		{
+			using var response = await httpService.Get(APIs.ClientApi.GET_StatisticsServer, [$"days={days}"], cancellationToken: cancellationToken);
+			if (response.IsSuccessStatusCode)
+				return await response.DefaultReadFromJsonAsync<List<ViewServerDay>>(cancellationToken) ?? [];
+
+			await LogFailure(response, nameof(ServerDays), cancellationToken);
+			return [];
+		}
+
 		async Task LogFailure(HttpResponseMessage response, string caller, CancellationToken cancellationToken)
 		{
 			var result = await response.Content.ReadWebResult(response.StatusCode, localizer, cancellationToken);