feat: add warnings package

[l-qing]

Changes

Submitter Checklist

As the author of this PR, please check off the items in this checklist:

• spec PR link included
  • https://github.com/katanomi/spec/issues/289
• Follows the commit message standard
• Meets the contributing guidelines (including
  functionality, content, code)
• Test cases with documentation and functionality works as expected using current and related github repos (MUST deploy and check)
• Release notes block below has been filled in or deleted (only if no user facing changes)