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

Client/Packages/io.github.hatayama.uloopmcp/Editor/Api/McpTools/Ping/PingSchema.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel;
+
+namespace io.github.hatayama.uLoopMCP
+{
+    /// <summary>
+    /// Schema for Ping command parameters
+    /// Provides type-safe parameter access with default values
+    /// </summary>
+    public class PingSchema : BaseToolSchema
+    {
+        /// <summary>
+        /// Message to send to Unity
+        /// </summary>
+        [Description("Message to send to Unity")]
+        public string Message { get; set; } = "Hello from TypeScript MCP Server";
+    }
+}