chore(unity): 固定Unity CLI Loop本地包并移除UnitySkills依赖

Client/Packages/io.github.hatayama.uloopmcp/Editor/Shared/Composition/DomainReloadStateRegistry.cs

@@ -0,0 +1,46 @@
+using System.Diagnostics;
+
+namespace io.github.hatayama.uLoopMCP
+{
+    public static class DomainReloadStateRegistry
+    {
+        private static readonly object SyncRoot = new object();
+        private static IDomainReloadStateProvider _provider;
+
+        public static void RegisterProvider(IDomainReloadStateProvider provider)
+        {
+            Debug.Assert(provider != null, "provider must not be null");
+
+            lock (SyncRoot)
+            {
+                _provider = provider;
+            }
+        }
+
+        public static bool IsDomainReloadInProgress()
+        {
+            IDomainReloadStateProvider provider;
+            lock (SyncRoot)
+            {
+                provider = _provider;
+            }
+
+            if (provider == null)
+            {
+                return false;
+            }
+
+            return provider.IsDomainReloadInProgress();
+        }
+
+        public static IDomainReloadStateProvider SwapProviderForTests(IDomainReloadStateProvider provider)
+        {
+            lock (SyncRoot)
+            {
+                IDomainReloadStateProvider previousProvider = _provider;
+                _provider = provider;
+                return previousProvider;
+            }
+        }
+    }
+}