Fix duplicate macConfigPath field in McpClient to resolve CS0102

Author: dsarno

UnityMcpBridge/Editor/Models/McpClient.cs

@@ -6,7 +6,6 @@ public class McpClient
         public string windowsConfigPath;
         public string macConfigPath;
         public string linuxConfigPath;
-        public string macConfigPath; // optional macOS-specific config path
         public McpTypes mcpType;
         public string configStatus;
         public McpStatus status = McpStatus.NotConfigured;