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>

tests/AcDream.Core.Tests/Ui/RetailPositionFormatterTests.cs

@@ -0,0 +1,31 @@
+using System.Numerics;
+using AcDream.Core.Physics;
+using AcDream.Core.Ui;
+
+namespace AcDream.Core.Tests.Ui;
+
+public sealed class RetailPositionFormatterTests
+{
+    [Fact]
+    public void Format_MatchesPositionToStringFieldOrderAndPrecision()
+    {
+        var position = new Position(
+            0xA9B40001u,
+            new CellFrame(
+                new Vector3(1.25f, -2.5f, 3f),
+                new Quaternion(0.1f, 0.2f, 0.3f, 0.9f)));
+
+        Assert.Equal(
+            "0xA9B40001 [1.250000 -2.500000 3.000000] 0.900000 0.100000 0.200000 0.300000",
+            RetailPositionFormatter.Format(position));
+    }
+
+    [Fact]
+    public void FormatOutdoorCell_UsesRetailRadarCoordinateOrder()
+    {
+        Assert.True(RadarCoordinates.TryFromCell(0xA9B40001u, out var expected));
+        Assert.Equal(expected.CombinedText,
+            RetailPositionFormatter.FormatOutdoorCell(0xA9B40001u));
+        Assert.Null(RetailPositionFormatter.FormatOutdoorCell(0xA9B40164u));
+    }
+}