Bring back runnable FPI tutorials

[mmagician]

pending a fix in miden-base, see #110 (comment)

[igamigo]

Is this pending a fix in miden-base? If this is related to 0xMiden/miden-client#1264 (comment), this was fixed and released a couple weeks ago on current versions of miden-base and also on miden-client.

Separately but relatedly, I think one thing that should be addressed (looking at the version in main) is the fact that the transaction submission result is still unused. If this is still the case, any error on that call will not be surfaced in the test execution. See also 0xMiden/miden-client#1264 (comment) for reference.

[mmagician]

Good catch @igamigo! I actually thought we were unwrapping all the client calls, but it seems this is not the case