I am lost with an easy-looking jq problem. Given a key-value object, I want to transform the value into a nested object with a value-key. I tried permutations with to_entries and native output as well as the {}-output option, but without success. I'm convinced there is a rather obvious solution, but I cannot find it.

Input:

{ "mykey" : "myvalue" }

Desired output:

{ "mykey" : { "value" : "myvalue" }}