Is your feature request related to a problem? Please describe.
Feedback from real-life DSS deployments at least twice reported performance issues caused (possibly partially) by accumulation of stale data in the DB, leading to latency and contention resulting in degraded overall performances.

Reproducing such scenarios in our CI would hopefully allow us to anticipate better such issues before they are actually encountered in production.

Describe the solution you'd like
A CI job querying a (possibly pooled) DSS loaded with significant amount of entities, ensuring the degradation in performances remain within acceptable limits.

Describe alternatives you've considered
N/A

Additional context
#1241
#1074
Discussed during InterUSS weekly 2025-08-26