Sorry to disagree with you on this matter specifically, Bitcoin has a very limited supply which i believe we all know, it is not important that Satoshi mention everything that Bitcoin is today in the whitepaper, circumstances or performance of a thing sometimes creates new uses for it, Satoshi might not have thought Bitcoin to be a hedge against inflation, but the limited supply, scarcity level, demand and its performance has made people see it as a hedge against inflation.
To give you an instance or example , Ten years ago, maybe with $2000 USD fiat money could afford you a certain type of car, lets use Toyota camry as an example, and you will up to 1000 Bitcoins to buy the same car, But today, you need $4000 USD or more in fiat money to buy the same car due to inflation, while with just 0.5 Bitcoin, you could buy two of that same car.
I hope this makes you see how Bitcoin truly is a hedge against inflation.