feat(chat): port retail client command families

Expand the typed client-command boundary across travel, character queries, local UI and layout controls, AFK and consent, emotes, friends, squelch and filters, and fill-components. Preserve retail packet layouts and queue ownership, import the confirmation dialog, and keep authoritative social state in Core.

Co-Authored-By: Codex <codex@openai.com>

src/AcDream.App/UI/UiDialogRoot.cs

@@ -0,0 +1,32 @@
+using System.Numerics;
+
+namespace AcDream.App.UI;
+
+/// <summary>
+/// Full-device modal root for retail dialog element classes. The authored child with id
+/// <c>0x3D</c> supplies the visible popup art; this root only owns modality and input capture.
+/// </summary>
+public sealed class UiDialogRoot : UiPanel
+{
+    public Action? Cancel { get; set; }
+
+    public UiDialogRoot()
+    {
+        BackgroundColor = Vector4.Zero;
+        BorderColor = Vector4.Zero;
+        ClickThrough = false;
+    }
+
+    public override bool OnEvent(in UiEvent e)
+    {
+        if (e.Type == UiEventType.KeyDown
+            && e.Data0 == (int)Silk.NET.Input.Key.Escape)
+        {
+            Cancel?.Invoke();
+        }
+
+        // A dialog root is full-screen and modal. Unhandled clicks/keys must not
+        // fall through into movement, combat, or the default chat input.
+        return true;
+    }
+}