encodeBlob method
Encode a blob into primary and secondary slivers for all shards.
Returns an EncodedBlob containing the blob ID, metadata bytes, root hash, and all slivers indexed by sliver pair index.
Uses the native FFI encoder for canonical output.
Implementation
EncodedBlob encodeBlob(Uint8List data, int numShards) {
return _encodeBlobFFI(data, numShards);
}