创建 Automation Token（推荐）
访问 https://www.npmjs.com/settings/hualetian/tokens
点击 "Generate New Token" → "Granular Access Token"
设置：
Token name: login-mcp-publish
Expiration: 选择一个过期时间
Packages: Read and write
勾选 "Bypass two-factor authentication for automation"