move the blobstreamx monitoring tool here

We should move https://github.com/celestiaorg/blobstreamx-monitor in here

Start by comparing the blobstreamx-monitor repository with this blobstream-ops repository and identify what “move ... here” is intended to include. Review the existing tool and repository layout first; done should mean the monitoring tool is present in blobstream-ops with its required contents and working integration, though the issue does not define the migration scope.

Written by the indexing model from the issue text.