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.

tests/AcDream.App.Tests/UI/Layout/KeyboardConfigLiveMountProbeTests.cs

@@ -221,6 +221,13 @@ public sealed class KeyboardConfigLiveMountProbeTests
         string[] keys =
         {
             "ID_ActionKeyMap_MapInstructions",
+            "ID_ActionKeyMap_Binding",
+            "ID_ActionKeyMap_ButtonLabel",
+            "ID_ActionKeyMap_NonUserBindableBinding",
+            "ID_ActionKeyMap_OverwriteExistingBinding",
+            "ID_ActionKeyMap_OverwriteExistingBindings",
+            "ID_ActionKeyMap_TT_ExistingBinding",
+            "ID_ActionKeyMap_TT_NewBinding",
             "ID_KeyDescDelimiter",
             "ID_KeyNameWithSubControl",
             "ID_KeyMapCantOverwriteReadOnlyKeymap_Label",
@@ -251,7 +258,11 @@ public sealed class KeyboardConfigLiveMountProbeTests
         }
 
         // Candidate variable-name hashes for the MapInstructions template slot.
-        foreach (string candidate in new[] { "ACTION", "NAME", "KEY", "SUBCONTROL", "PLAYER", "COMMAND" })
+        foreach (string candidate in new[]
+                 {
+                     "ACTION", "BINDINGS", "KEY", "LABEL", "VALUE",
+                     "NAME", "SUBCONTROL", "PLAYER", "COMMAND",
+                 })
             Console.WriteLine(
                 $"[kbstr] hash('{candidate}') = 0x{DatStringResolver.ComputeHash(candidate):X8}");