What would be the best way to officially bring all of Peter's violations of the settlement to CBS's attention? Just on off chance that he's managed to keep all of this off of their radar.
I doubt it's off their radar. Even Peter's claims he's gotten letters from CBS lawyers alleging breach of settlement in the past, and in the end nothing's happened.
The issue is; Before Star Trek Discovery launched on the CBSAA streaming service, the suits were very concerned about how the public would react. They had a lot of money involved, and didn't want to take any chances; so with Peter's out there in 2015 Riding high off of a positive response to "Prelude To Axanar" and having raised $1.2 million at the time and rising; and Peter's at that time having some industry professionals, and stating you can do it faster better and cheaper...
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CBS saw that, and figured they had to do something before what Peters was doing had a negative effect on their upcoming launch of a new Star Trek series on their new and largely unknown/untested streaming service business model.
CBS launched the lawsuit and got a settlement that they were happy with. In the four years since the settlement:
Star Trek Discovery has launched on CBSAA, and been a big success for them. They've also now launched two more series, both of which were also successful; and they're about to launch another animated series on Nickelodeon; are producing more seasons of their existing series; and they have two more Star Trek series in various stages of pre-production.
At this point they know Star Trek is a successful franchise on their streaming service, and nothing that Peter's has done since has impacted their business model negatively in any major way.
So yeah they are probably aware he's still using the Star Trek IP to get money, but the amount of money he's getting is negligible, compared to how much he was getting before; and what he's doing is having no real negative effect on how CBS is now doing business with the Star Trek franchise.
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Until that changes, and CBS starts to see a big negative impact on its Star Trek business model from Alec Peter's actions with Axanar, CBS will continue to look the other way.