track(merged): feat: Add transparent listener + enforce-redirect for proxy-sidecar egress (ext#485)

Tracking stub for **merged PR kagenti-extensions#485** — auto-created so it rolls up as completed work under epic #1429.

https://github.com/kagenti/kagenti-extensions/pull/485

_Closed because the PR is already merged. Label `epic-progress` marks auto-created trackers._