The .NET wiki service has parity (same recall on the labelled set), serves
wiki-index.renner.uno and the notes webhook, and the workstation scripts
use it. Removes the app, its Flux Kustomization, image source and build
step, its CNP entries and the OpenBao policy file. The OpenBao role and
the old Gitea webhook are removed live after the merge.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>