Add card/identity sub-objects (camelCase serde per Vaultwarden API). brand/expMonth/expYear sent plaintext; other fields encrypted. Verified end-to-end: create + read decrypt correctly.
Add card/identity sub-objects (camelCase serde per Vaultwarden API). brand/expMonth/expYear sent plaintext; other fields encrypted. Verified end-to-end: create + read decrypt correctly.