Validates the integration credentials against the per-type schema (already
guaranteed by Zod at the tRPC input boundary) and, for Kipu, merges the
server-side access_id and secret_key from environment variables so they
are written to the DB without ever being exposed to the client.
Validates the integration credentials against the per-type schema (already guaranteed by Zod at the tRPC input boundary) and, for Kipu, merges the server-side
access_idandsecret_keyfrom environment variables so they are written to the DB without ever being exposed to the client.