Function crossAccountConfirm

crossAccountConfirm(
    profileId: string,
    source: ObjectRef,
    destination: ObjectRef,
): Promise<string>
Mint a one-time confirmation token for a large cross-account copy.

Call this after objectCopy returns AppError { kind: "Validation", details.field: "confirmed_token" }. The returned token is bound to the given (profileId, source, destination) scope and expires after 5 minutes. Pass it back to objectCopy as confirmedToken.
Parameters
- profileId: string
  The profile whose credentials to use.
- source: ObjectRef
  Source bucket + key (must match the failed copy call).
- destination: ObjectRef
  Destination bucket + key (must match the failed copy call).
Returns Promise<string>
- A single-use confirmation token string (UUID v4).
- Defined in src/api/objects.ts:298