Bug: Player CreatedAt is overwritten each time they play

[svperfecta]

It should be set the first time a match with the player is received.

[cklugewicz]

If this is changing, there ought to be a 'lastModified' property added to { player }

[schneefux]

Our site depends on createdAt the way it works currently.

Unlike matches, players need an attribute to compare the recency of an API object with a cached object in the database.

If you want to change createdAt's behavior, you should add updatedAt.

[svperfecta]

This is up next. The root issue is a change required to our ingest pipeline. I'm personally working on this starting tomorrow.