docs: sync from source repos 2026-08-13

[kong-volcano-app]

Automated docs sync. Sources: docs.config.yaml.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}