SystemRecordList_v1 should use a []SystemRecord_v1 not []string

[ma-kerl]

In systems like sregister you used SystemRecord_v1, which doesn't exist here.

[vanDeventer]

Issue Summary:
This issue reflects the current unmaintained state of the Service Registry System, which relies on an SQL database as its backend or asset. The SystemRecord_v1 form is no longer in use and therefore cannot be found—rendering the existing code non-functional. This change stems from the increasing complexity of querying across multiple SQL tables, which has made the approach impractical.

Alternative Approach:
A functional alternative is the Ephemeral Service Registry (ESR), which replaces the SQL database with an in-memory map. This is sufficient because the registry only needs to track currently available services, and thus does not require persistence.

Status:
This issue will remain open until the original system is either maintained or removed from the repository. It is currently retained as a reference example for how an SQL-backed system might be implemented.