fix(client): restore retail interaction parity

Harden keyboard and camera routing, inventory and vendor interactions, chat/emotes, relog portal flow, and paperdoll rendering. Add retail research, connected gate coverage, and release-gate validation.

src/AcDream.UI.Abstractions/Panels/Chat/ChatVM.cs

@@ -59,6 +59,12 @@ public sealed class ChatVM : IDisposable, IChatCommandFeedback
     public string? LastOutgoingTellTarget =>
         _commandTargets.LastOutgoingTellTarget;
 
+    public string? LastMonarchSender =>
+        _commandTargets.LastMonarchSender;
+
+    public string? LastPatronSender =>
+        _commandTargets.LastPatronSender;
+
     /// <summary>
     /// Optional callback exposing the live framerate. Wired by
     /// <c>GameWindow</c> at construction so the client-side