feat: update MCP config and TOOLS.md with calendar/contacts note

.agents/skills/dingtalk-api/node_modules/xml2js/lib/bom.js

@@ -0,0 +1,12 @@
+// Generated by CoffeeScript 1.12.7
+(function() {
+  "use strict";
+  exports.stripBOM = function(str) {
+    if (str[0] === '\uFEFF') {
+      return str.substring(1);
+    } else {
+      return str;
+    }
+  };
+
+}).call(this);