refactor: CreateDID operation contains only master key
CreateDIDOperation now includes only the master key with CompressedECKeyData. All other keys, services, and contexts must be added via subsequent UpdateDIDOperation. Keys are still derived and stored during createAndStoreDID for use in subsequent UpdateDID operations. Co-Authored-By: Claude Opus 4.6 <[email protected]> Signed-off-by: Yurii Shynbuiev <[email protected]>