fix(test): UI probe pointer commands convert canvas to window coordinates; char-select Enter logs its outcome

The automation probe fed element-center CANVAS coordinates straight into
UiRoot.OnMouseMove/Down/Up, which take WINDOW coordinates and map
window->canvas internally (UiRoot.MapWindowToCanvas). The two spaces are
identical on every screen without UiRoot.FixedCanvasSize — every prior
probe gate passed — but the character-select/chargen screens stretch an
authored 800x600 canvas across the window, so every synthetic click and
hover landed at canvas*(canvas/window): nowhere near the target. The
enter-world connected gate's 'click element 0x100003A2' silently did
nothing for two full rounds. Element-derived pointer paths (ClickAt,
DragAt, HoverElement) now convert canvas->window via UiRoot.CanvasScale;
raw 'mousemove x y' stays a passthrough.

CharacterManagementUiController.EnterSelected also logs a once-per-click
outcome line ('[UI] character enter accepted/rejected status=...') — a
refused Enter was previously indistinguishable from a click that never
dispatched (both silent), which cost a connected-gate round to tell
apart.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/AcDream.App/UI/Layout/CharacterManagementUiController.cs

@@ -580,6 +580,13 @@ internal sealed class CharacterManagementUiController : IDisposable
         // remains authoritative and closes it on InWorld/error/reset.
         EnsureEnterWait();
         RuntimeCommandResult result = _bindings.Enter();
+        // Enter-world round (2026-08-17): once-per-click outcome line — a
+        // refused Enter was previously indistinguishable from a click that
+        // never dispatched (both silent), which cost a full connected-gate
+        // round to tell apart.
+        Console.WriteLine(result.Accepted
+            ? "[UI] character enter accepted"
+            : $"[UI] character enter rejected status={result.Status}");
         if (!result.Accepted)
             CloseContext(ref _enterWaitContext, suppressCallback: true);
         InvalidateAndTick();