[Backport release/3.4.x] feat: request debugging

[ADD-SP]

Summary

Backports:

• https://github.com/Kong/kong/pull/11627
• https://github.com/Kong/kong/pull/11674
• https://github.com/Kong/kong/pull/11722
• https://github.com/Kong/kong/pull/11779
• https://github.com/Kong/kong/pull/11808
• https://github.com/Kong/kong/pull/11892

Checklist

• [X] The Pull Request has tests
• [X] A changelog file has been created under changelog/unreleased/kong or skip-changelog label added on PR if changelog is unnecessary. README.md
• [N/A] There is a user-facing docs PR against https://github.com/Kong/docs.konghq.com - PUT DOCS PR HERE

Issue reference

KAG-3440