* We now register SHCs using a different format than old-style ON cards
* server-side register function has been updated to split out old-style and
SHC registrations and put them into different collections so we can easily
delete old-style data when the code path is turned off
* Record SHCs (minus PII) from unexpected issuers so that we can
proactively learn about and react to new SHC issuers or format changes
* Load API config exactly once and reuse it rather than reloading on every
card generation
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