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

Client/Packages/io.github.hatayama.uloopmcp/Editor/Compilation/CompiledAssemblyLoadService.cs

@@ -0,0 +1,12 @@
+namespace io.github.hatayama.uLoopMCP
+{
+    internal sealed class CompiledAssemblyLoadService : ICompiledAssemblyLoader
+    {
+        public CompiledAssemblyLoadResult Load(
+            DynamicCodeSecurityLevel securityLevel,
+            byte[] assemblyBytes)
+        {
+            return CompiledAssemblyLoader.Load(securityLevel, assemblyBytes);
+        }
+    }
+}