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/Diagnostics/WorldLifecycleAutomationControllerTests.cs

@@ -61,6 +61,33 @@ public sealed class WorldLifecycleAutomationControllerTests
         }
     }
 
+    [Fact]
+    public void RetailScreenshotRequest_UsesFirstFreeScreenShotNumber()
+    {
+        string directory = NewDirectory();
+        Directory.CreateDirectory(directory);
+        File.WriteAllBytes(Path.Combine(directory, "ScreenShot00000.png"), [0]);
+        var controller = new FrameScreenshotController(
+            (_, _) => [255, 255, 255, 255],
+            directory);
+
+        try
+        {
+            Assert.True(controller.TryRequestRetailScreenshot(
+                out string path,
+                out string error), error);
+            Assert.Equal(
+                Path.Combine(directory, "ScreenShot00001.png"),
+                path);
+            Assert.True(controller.CapturePending(1, 1));
+            Assert.True(File.Exists(path));
+        }
+        finally
+        {
+            Directory.Delete(directory, recursive: true);
+        }
+    }
+
     [Fact]
     public void ScreenshotCapture_ReportsNoWorkAndFailedCapture()
     {