A moved account's profile says where it went

PrivaPub now fills `moved` once a move is believed; the profile shows it, linking
the new account's profile. The e2e opens the account SocialPub's moves scenario
moved and finds the new one named.

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

CLAUDE.md

@@ -231,6 +231,8 @@ supplies:
   link, participants and status.
 - **Profiles and search** (`Pages/Profile.razor` at `/account/{id}`, `Pages/Search.razor` at `/search?q=`): a card's
   author and a notification's account open the profile in the app; "Open original" is the only way to the remote site.
+  An account that moved says where to (`Account.Moved`, which PrivaPub fills once the new account names the old one),
+  linking the new account's profile.
   A card in a fixed-height flex column with `overflow-hidden` needs `flex-none`, or it collapses to nothing.
 - **Groups** (`Pages/Groups.razor` at `/groups`): the persona's communities and circles (`GroupService`, `/clientapi/group`):
   made (a circle unless it is a community, with an invitation code and an optional password), joined by invitation and

Models/Mastodon/Account.cs

@@ -25,6 +25,8 @@ public class Account
 	public string LastStatusAt { get; set; }
 	public List<CustomEmoji> Emojis { get; set; } = [];
 	public List<AccountField> Fields { get; set; } = [];
+	/// <summary>The account it moved to (PrivaPub shows it once the new account names this one among its aliases).</summary>
+	public Account Moved { get; set; }
 	/// <summary>Whether it is listed in the directory and suggested; null when its server does not say.</summary>
 	public bool? Discoverable { get; set; }
 	/// <summary>Whether its public posts may be found by full-text search.</summary>

Pages/Profile.razor

@@ -32,6 +32,14 @@
 		}
 		else
 		{
+			@if (account.Moved is { } moved)
+			{
+				<p class="flex flex-wrap items-center gap-2 p-3 rounded-xl neo-inset neo-2xs text-sm" data-moved>
+					<i class="ion-md-swap"></i>
+					<span>@Localizer["{0} has moved to", account.Name]</span>
+					<a class="link font-semibold" href="@($"account/{Uri.EscapeDataString(moved.Id)}")">@("@" + moved.Acct)</a>
+				</p>
+			}
 			<article class="flex flex-none flex-col rounded-xl neo-raised neo-xs overflow-hidden" data-account-id="@account.Id">
 				<div class="h-28 md:h-40 bg-base-200 bg-cover bg-center" style="@HeaderStyle"></div>
 				<div class="flex flex-wrap items-end gap-3 px-4 -mt-10">

Resources/AllStrings.it.resx

@@ -1715,4 +1715,7 @@
   <data name="Every persona of this login goes with it, and everything public they had, here and on the servers that hold it. It cannot be undone." xml:space="preserve">
     <value>Ogni persona di questo accesso se ne va con lui, e tutto ciò che avevano di pubblico, qui e sui server che lo tengono. Non si può annullare.</value>
   </data>
+  <data name="{0} has moved to" xml:space="preserve">
+    <value>{0} si è trasferito su</value>
+  </data>
 </root>

Resources/AllStrings.resx

@@ -1715,4 +1715,7 @@
   <data name="Every persona of this login goes with it, and everything public they had, here and on the servers that hold it. It cannot be undone." xml:space="preserve">
     <value>Every persona of this login goes with it, and everything public they had, here and on the servers that hold it. It cannot be undone.</value>
   </data>
+  <data name="{0} has moved to" xml:space="preserve">
+    <value>{0} has moved to</value>
+  </data>
 </root>

tests/e2e/Actions/ProfileTests.cs

@@ -24,6 +24,39 @@ namespace decePubClient.E2E.Actions
 			return candidates.Last();
 		}
 
+		// the newest GoToSocial account that SocialPub's moves scenario moved (scenarios/moves.sh), as PrivaPub knows it
+		static async Task<(string Old, string New)> Moved()
+		{
+			var start = new System.Diagnostics.ProcessStartInfo("podman") { RedirectStandardOutput = true, RedirectStandardError = true };
+			foreach (var arg in new[] { "exec", "pasture-mongo", "mongosh", "--quiet", "PrivaPub", "--eval",
+				"const a = db.ForeignAvatar.find({ActorURI: {$regex: 'gts.test.users.mvold'}, MovedToURL: {$ne: null}}).sort({_id: -1}).limit(1).toArray()[0];" +
+				"print(a ? a.ActorURI + ' ' + a.MovedToURL : '')" })
+				start.ArgumentList.Add(arg);
+			using var process = System.Diagnostics.Process.Start(start)!;
+			var output = (await process.StandardOutput.ReadToEndAsync()).Trim();
+			await process.WaitForExitAsync();
+			var parts = output.Split(' ', StringSplitOptions.RemoveEmptyEntries);
+			return parts.Length == 2 ? (parts[0], parts[1]) : default;
+		}
+
+		[Fact]
+		public async Task A_moved_accounts_profile_says_where_it_went()
+		{
+			var (old, moved) = await Moved();
+			Assert.SkipWhen(old is null, "no moved account: run SocialPub's tools/pasture/interop.sh moves");
+			var persona = Pasture.Personas().First();
+			var handle = old.Split("/users/")[1] + "@gts.test";
+			await using var session = await SignIn.As(browser, persona);
+			await Results.Cell("client.render.moved", "gts", handle, async () =>
+			{
+				await session.Page.GotoAsync($"{Pasture.Site}/search?q={Uri.EscapeDataString("@" + handle)}");
+				var banner = session.Page.Locator("[data-moved]");
+				await banner.WaitForAsync(new() { Timeout = 30000 });
+				await Assertions.Expect(banner).ToContainTextAsync("@" + moved.Split("/users/")[1] + "@gts.test");
+				await session.AssertGuards();
+			}, session.Page);
+		}
+
 		[Theory]
 		[MemberData(nameof(Origins))]
 		public async Task A_remote_account_found_by_its_handle_is_followed_and_unfollowed_from_its_profile(string platform)