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.Core.Tests/Input/RetailActionMapReaderTests.cs

@@ -169,6 +169,38 @@ public sealed class RetailActionMapReaderTests
         Assert.Empty(row.DefaultBindings);
     }
 
+    [Fact]
+    public void Read_PreservesRetailInputMapConflictPolicy()
+    {
+        var actionMap = new ActionMap
+        {
+            InputMaps = new Dictionary<uint, Dictionary<uint, ActionMapValue>>(),
+            ConflictingMaps = new Dictionary<uint, InputsConflictsValue>
+            {
+                [0x10000003u] = new InputsConflictsValue
+                {
+                    InputMap = 0x10000003u,
+                    ConflictingInputMaps = new List<uint>
+                    {
+                        0x10000003u,
+                        0x10000002u,
+                    },
+                },
+            },
+        };
+        var dats = new FakeDatObjectSource();
+        dats.Add(RetailActionMapIds.ActionMapId, actionMap);
+
+        RetailActionMapSnapshot snapshot = Assert.IsType<RetailActionMapSnapshot>(
+            RetailActionMapReader.Read(dats));
+
+        Assert.True(snapshot.InputMapsConflict(0x10000003u, 0x10000003u));
+        Assert.True(snapshot.InputMapsConflict(0x10000003u, 0x10000002u));
+        Assert.False(snapshot.InputMapsConflict(0x10000003u, 0x10000004u));
+        Assert.True(snapshot.InputMapsConflict(0xDEADBEEFu, 0xDEADBEEFu));
+        Assert.False(snapshot.InputMapsConflict(0xDEADBEEFu, 0x10000003u));
+    }
+
     [Fact]
     public void RetailInputMapHeaders_HasAllNineteenByteVerifiedEntries()
     {
@@ -245,5 +277,12 @@ public sealed class RetailActionMapReader_LiveDatTests
         Assert.Equal(2, moveForward.DefaultBindings.Count);
         Assert.Contains(moveForward.DefaultBindings, c => c.Scan == 0x11u); // DIK_W
         Assert.Contains(moveForward.DefaultBindings, c => c.Scan == 0xC8u); // DIK_UPARROW
+
+        // The authored combat modes intentionally share the five attack/aim
+        // keys. Retail's conflict table keeps those mode-local contexts apart;
+        // Configure Keyboard must not erase one mode while editing another.
+        Assert.False(snapshot.InputMapsConflict(0x10000003u, 0x10000004u));
+        Assert.False(snapshot.InputMapsConflict(0x10000003u, 0x10000005u));
+        Assert.False(snapshot.InputMapsConflict(0x10000004u, 0x10000005u));
     }
 }