### What
Adds a quick and dirty description to requestPerSeconds and
segmentedRequestPerSecondsSchema so the enterprise /rps endpoint has
better API docs.
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Co-authored-by: Simon Hornby <liquidwicked64@gmail.com>
## About the changes
This connects our backend with Prometheus (or compatible) metrics
service, and exposes raw data (i.e. acting as a proxy)
Co-authored-by: Christopher Kolstad <chriswk@getunleash.ai>