2dfc3e1 (PR #50's out-of-band squash) overwrote agent-health-check.py with
a version whose AGENTS dict was empty — the health check silently skipped
every agent since. Restore the pre-stomp roster verbatim: tanko (runtime:
dsh), abiba, koby, koonimo.
Also land two Tanko-DSH rows from PR #52 that the earlier merge missed:
- hermes-zulip-plugin live-state table (plugin retired on CT112)
- zulip-self-heal restart-services table (restart via DSH service, not
hermes gateway restart)
Mumuni rows from the branch were NOT restored: they carry pre-migration
CT100/.24 data, superseded by PRs #54-56 (Mumuni now on kagentz CT105/.14).
Closes the reland of PR #52's substance; the stale branch head stays closed.