Current native restore does not support primary_replica_only, it is hard-coded disabled and this may lead to data amplification issues. This patch extends the restore REST API to accept a primary_replica_only parameter and propagates it to sstables_loader so it gets correctly passed to load_and_stream. Fixes #26584 Signed-off-by: Robert Bindar <robert.bindar@scylladb.com> Signed-off-by: Robert Bindar <robert.bindar@scylladb.com>