Records the user's choice between the two candidate link targets (the notice
page on oeffentlichevergabe.de, not the awarding portal's own page), what was
checked before touching the adapter, and the trap in verifying it: the target
is a single-page app that answers 200 with an identical shell for any id, so
only rendered content proves the link works.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
