jets: mark schnorr jets non-perfect
jets: mark schnorr jets non-perfect

also marks %sosi as non-total, since it conceivably could punt.

ngzax/urbit,urbit/urbit,ngzax/urbit,ngzax/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,urbit/urbit,urbit/urbit,urbit/urbit,ngzax/urbit,ngzax/urbit