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

Client/Packages/io.github.hatayama.uloopmcp/Editor/Shared/Models/CompilationError.cs

@@ -0,0 +1,22 @@
+namespace io.github.hatayama.uLoopMCP
+{
+    /// <summary>
+    /// Represents a compilation error during code compilation
+    /// 
+    /// Related Classes: RoslynCompiler, CompilationResult
+    /// </summary>
+    public class CompilationError
+    {
+        /// <summary>Line number where the compilation error occurred</summary>
+        public int Line { get; set; }
+
+        /// <summary>Column number where the compilation error occurred</summary>
+        public int Column { get; set; }
+
+        /// <summary>Detailed error message describing the compilation error</summary>
+        public string Message { get; set; }
+
+        /// <summary>Unique error code identifying the specific compilation error</summary>
+        public string ErrorCode { get; set; }
+    }
+}