fix(ui,net): Campaign LA gate round 2 — char-select exit confirmation, authored row justify, world name

Finding 1 (Exit button dead): retail's gmCharacterManagementUI Exit
button (element 0x100003A4, offset 7 from the listbox base in
ListenToElementMessage@0x004ed5a0) opens MakeConfirmExitDialog
(0x004ed250), whose exact ID_CharacterManagement_ConfirmExit text
(table 0x23000002) and m_confirmExitDialogContext re-entry guard are
now ported. On confirm (matching RecvNotice_CloseDialog@0x004ed760
case 1's ConfirmationResult check) the client exits through the
EXISTING graceful window-close seam (CharacterSelectionRuntimeBindings
.RequestExit -> d.Window.Close, the same delegate
GameplayInputCommandController's Escape fallback already uses) so
disconnected/exited status events still fire via GameWindow.OnClosing
-> CompleteShutdown. Retail's real post-confirm destination is
QueueUIMode(0x10000009) -> gmEpilogueUI, an epilogue screen this round
does not port — recorded as AD-99. Credits (element 0x100003A3,
QueueUIMode(0x10000005) -> gmCreditsUI) stays visibly ghosted like
Create, same treatment, out of scope this round.

Finding 2 (row names center-aligned, retail is left): the character
row template (LayoutDesc 0x21000004, element 0x100003A5, live-DAT
confirmed HJustify=Left with three stateful Type-3 highlight-art
children and no Type-12 caption child) authors its OWN justify
directly, with no separate text child to lift a label from.
DatWidgetFactory.BuildButton's Left-justify branch required
!ReferenceEquals(labelInfo, info) — true only when a label was LIFTED
from a distinct child — so a button's own direct HJustify=Left was
silently dropped to UiButton's Center default. Widened the branch to
also honor the direct case, preserving the existing lifted-child
LabelOffsetX behavior and leaving genuinely-centered buttons
(CREATE/ENTER/DELETE/RESTORE) untouched.

Finding 3 (World box empty): parsed ACE's GameMessageServerName
(opcode 0xF7E1, ACE.Server/Network/GameMessages/Messages/
GameMessageServerName.cs; retail CM_Login::DispatchUI_WorldInfo
@0x006ad860 -> ClientUISystem::Handle_Login__WorldInfo@0x005641a0 ->
ECM_Login::SendNotice_WorldName@0x00692b10, notice 0x186a2, consumed
by gmCharacterManagementUI::UpdateWorldName@0x004ec120 /
RecvNotice_WorldName@0x004ec360 onto element 0x1000039B) as
src/AcDream.Core.Net/Messages/ServerName.cs, cross-checked against
holtburger's ServerNameData. WorldSession.ServerNameReceived fires
alongside CharacterListReceived (ACE sends both in one
SendConnectResponse batch); RuntimeCharacterSelectionState.
ApplyWorldName is the new J-owner field (ungated by lifecycle, since
either message can arrive first); CharacterManagementUiController
binds it onto the WorldTextElementId UiText. Per the LA1 status
vocabulary, the characterList STATUS event's worldName field is
intentionally NOT added this round (kept bounded to the client-side
fix) — a follow-up if the launcher UI wants it.

Also corrects AD-44, discovered stale while filing AD-99: its opening
claim ("acdream has no retained character-management screen") was
false as of this session — LA7/LA8 shipped the screen in earlier
commits without updating this row.

Tests: exit-confirm open/cancel/confirm/re-entry-guard flow;
DatWidgetFactory own-HJustify-Left/Center regression tests plus the
live-DAT pinned row-justify assertion; ServerName parse round-trip
(byte-exact vs ACE's AceWireWriter fixture, truncation/wrong-opcode
cases); WorldSession dispatch test (roster+world in one wire batch);
RuntimeCharacterSelectionState.ApplyWorldName tests (order-independent
of ApplyRoster, unchanged-value no-op, Reset clears); controller test
binding the World text element to the live snapshot. Extended the
shared RetailDialogFactoryTests.BuildDialogLayout test fixture with a
Confirmation-type branch (Accept/Reject buttons) since this is its
first RetailDialogType.Confirmation consumer.

Suites: full solution Release build green; AcDream.App.Tests 5100/6
skips, AcDream.Core.Net.Tests 965/0, AcDream.Runtime.Tests 1665/0, all
Release, 0 failures; live-DAT probes (ACDREAM_PROBE_LIVE_MOUNT=1)
green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/AcDream.Runtime/Session/LiveSessionController.cs

@@ -246,23 +246,27 @@ public sealed class LiveSessionController
         private readonly Action _delete;
         private readonly Action<CharacterRestore.Parsed> _restore;
         private readonly Action<CharacterError.Parsed> _error;
+        private readonly Action<ServerName.Parsed> _worldName;
 
         public CharacterSelectionWireBinding(
             WorldSession session,
             Action<CharacterList.Parsed> roster,
             Action delete,
             Action<CharacterRestore.Parsed> restore,
-            Action<CharacterError.Parsed> error)
+            Action<CharacterError.Parsed> error,
+            Action<ServerName.Parsed> worldName)
         {
             _session = session;
             _roster = roster;
             _delete = delete;
             _restore = restore;
             _error = error;
+            _worldName = worldName;
             session.CharacterListReceived += roster;
             session.CharacterDeleteAcknowledged += delete;
             session.CharacterRestoreReceived += restore;
             session.CharacterErrorReceived += error;
+            session.ServerNameReceived += worldName;
         }
 
         public bool IsDisposed => _session is null;
@@ -276,6 +280,7 @@ public sealed class LiveSessionController
             session.CharacterDeleteAcknowledged -= _delete;
             session.CharacterRestoreReceived -= _restore;
             session.CharacterErrorReceived -= _error;
+            session.ServerNameReceived -= _worldName;
         }
     }
 
@@ -886,6 +891,14 @@ public sealed class LiveSessionController
                     if (IsCurrent(scope, generation))
                         CharacterSelectionState.ApplyError(error);
                 }
+            },
+            worldName =>
+            {
+                lock (_gate)
+                {
+                    if (IsCurrent(scope, generation))
+                        CharacterSelectionState.ApplyWorldName(worldName.WorldName);
+                }
             });
 
     public RuntimeCommandResult Highlight(

src/AcDream.Runtime/Session/RuntimeCharacterSelectionState.cs

@@ -36,6 +36,11 @@ public enum RuntimeCharacterSelectionDeltaKind
     ErrorChanged,
     EnteringWorld,
     EnteredWorld,
+    /// <summary>
+    /// Campaign LA gate round 2 finding 3: <see cref="ServerName"/> arrived —
+    /// see <see cref="RuntimeCharacterSelectionState.ApplyWorldName"/>.
+    /// </summary>
+    WorldNameChanged,
 }
 
 public readonly record struct RuntimeCharacterSelectionEntry(
@@ -77,6 +82,7 @@ public readonly record struct RuntimeCharacterSelectionSnapshot(
     string AccountName,
     int SlotCount,
     int RosterCount,
+    string WorldName,
     uint HighlightedCharacterId,
     int HighlightedDisplayIndex,
     uint PendingDeleteCharacterId,
@@ -202,6 +208,7 @@ public sealed class RuntimeCharacterSelectionState : IDisposable
     private long _revision;
     private string _accountName = string.Empty;
     private int _slotCount;
+    private string _worldName = string.Empty;
     private uint _highlightedCharacterId;
     private uint _pendingDeleteCharacterId;
     private uint _lastRestoreRequestedCharacterId;
@@ -236,6 +243,7 @@ public sealed class RuntimeCharacterSelectionState : IDisposable
                     _accountName,
                     _slotCount,
                     _entries.Length,
+                    _worldName,
                     _highlightedCharacterId,
                     selectedIndex,
                     _pendingDeleteCharacterId,
@@ -326,6 +334,28 @@ public sealed class RuntimeCharacterSelectionState : IDisposable
             selected);
     }
 
+    /// <summary>
+    /// Campaign LA gate round 2 finding 3: retail's <c>UpdateWorldName</c>
+    /// (<c>0x004ec120</c>) / <c>RecvNotice_WorldName</c> (<c>0x004ec360</c>)
+    /// both just push <c>Client::GetWorldName()</c> onto element
+    /// <c>0x1000039B</c> — no lifecycle gate. ACE sends <c>ServerName</c> in
+    /// the same batch as <c>CharacterList</c>, so this may land slightly
+    /// before or after <see cref="ApplyRoster"/>; it is intentionally
+    /// ungated (beyond disposal) so neither arrival order loses the name.
+    /// </summary>
+    internal void ApplyWorldName(string worldName)
+    {
+        ArgumentNullException.ThrowIfNull(worldName);
+        lock (_gate)
+        {
+            if (_disposed || _worldName == worldName)
+                return;
+            _worldName = worldName;
+            _revision++;
+        }
+        Publish(RuntimeCharacterSelectionDeltaKind.WorldNameChanged);
+    }
+
     internal bool TryHighlight(uint characterId)
     {
         lock (_gate)
@@ -900,6 +930,7 @@ public sealed class RuntimeCharacterSelectionState : IDisposable
         _entries = [];
         _accountName = string.Empty;
         _slotCount = 0;
+        _worldName = string.Empty;
         _highlightedCharacterId = 0u;
         _pendingDeleteCharacterId = 0u;
         _lastRestoreRequestedCharacterId = 0u;