Remodel DB with paid actions at center?

[huumn]

As I'm working on satistics I'm realizing a lot of db model could use refactoring now that paid actions are pretty ubiquitous.

Something like a PaidAction table that's a parent of ItemAct, SubAct, etc. so it can include other things like buying CCs (needs its own special table otherwise), giving invite gifts (currently inferred), rewards, etc.

PaidAction {
    type
    state
    cost
    senderId
    receiverId
    paymentMethod
}

Then relevant rows in other tables (should they be needed) would belong to a PaidAction. This might make retries and other types of associations easier.

It's maybe not a high priority thing but it's longterm optimal afaict.