has been resituated several times in the house now.
I think I finally have it in the right spot- it's on the mineral table in the front room (where the big fish tank is). The table is just wide enough that none of the fronds extend beyond it, so it won't get banged up by people walking by. It will just take a few weeks' observation to see if it gets enough light here.
I still haven't repotted it yet, but it seems content enough. Fiddleheads uncurling at a slow but steady rate.