fix: change contributors to array to satisfy GitHub Packages

Author: liueic

package.json

@@ -5,7 +5,12 @@
     "registry": "https://npm.pkg.github.com"
   },
   "description": "A Model Context Protocol (MCP) server that integrates with the KnowS evidence & question-answering API.",
-  "contributors": "xiao-x-bao community, the 1st AI opensource charity community helping cancer/rare disease/chronic disease patients",
+  "contributors": [
+    {
+      "name": "xiao-x-bao community",
+      "url": "https://github.com/PancrePal-xiaoyibao"
+    }
+  ],
   "keywords": [
     "mcp",
     "model-context-protocol",