The two MPC files that still carried Ringtail names:
cmd/mpcd/main.go — comment ref to luxfi/ringtail
pkg/api/handlers_kms.go — ValidatorKeySet wire schema
handlers_kms.go renames:
ValidatorKeySet.RingtailWalletID → CoronaWalletID
ValidatorKeySet.RingtailPublicKey → CoronaPublicKey
JSON tags ringtailWalletId/PubKey → coronaWalletId/PubKey
local `ringtailWalletID` and the per-validator suffix
"validator-<id>-ringtail" → "validator-<id>-corona"
router switch `case "ringtail":` → `case "corona":`
cmd/mpcd/main.go: comment "luxfi/corona and luxfi/ringtail" was
collapsed to just "luxfi/corona" — the dispatcher's not-yet-impl
stub now references only the live R-LWE library.
Wire break, no compat layer (forwards-perfection policy):
KMS callers must re-issue requests with the new field names.
Build: go build ./... PASS.
Tests: pkg/api PASS 1.374s.