The dialog test caught the new option immediately, which is what it is for.
Updated for five backends, plus checks specific to Connect: it must be offered,
disabled, labelled so the reason is visible rather than just greyed out, carry
no credential field while unusable, and point at the free equivalent that works
today.
connect is left out of the per-type field-swap loop on purpose — a disabled
option cannot be selected, which is the behaviour we want and is asserted
directly instead.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
7b0cf0bbba