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

Client/Packages/io.github.hatayama.uloopmcp/Editor/Api/Errors/ParameterValidationException.cs

@@ -0,0 +1,22 @@
+using System;
+
+namespace io.github.hatayama.uLoopMCP
+{
+    /// <summary>
+    /// Exception thrown when tool parameter JSON fails type validation.
+    /// </summary>
+    public class ParameterValidationException : Exception
+    {
+        public ParameterValidationException(string message)
+            : base(message)
+        {
+        }
+
+        public ParameterValidationException(string message, Exception innerException)
+            : base(message, innerException)
+        {
+        }
+    }
+}
+
+

Client/Packages/io.github.hatayama.uloopmcp/Editor/Api/Errors/ParameterValidationException.cs.meta

@@ -0,0 +1,11 @@
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