refactor: eliminate remaining direct credentialsVcJWT dependencies
- apiServerJobsCore: replace ES256KSigner/EdSigner with VcJwtService - credentialsPreX: add JwtDecoder param to decouple from JwtCredential/JwtPresentation - oid4vciCore: move JwtSignerImplicits to sharedCrypto - oid4vciHttp: add explicit credentialsVcJWT dep (was transitive via oid4vciCore) - Add arch constraints for apiServerJobsCore and oid4vciCore Co-Authored-By: Claude Opus 4.6 <[email protected]>