Fix: Use NPMTOKEN secret name instead of NPM_TOKEN

Author: xplusplusai

.github/workflows/publish-mcp.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Publish to npm
         run: npm publish
         env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPMTOKEN }}
 
       - name: Install MCP Publisher
         run: |