* HFR can now output waste gases again (#55864)
Commit 241e9cf broke HFR. Leaving internal_output as null meant that
execution would hit runtimes during process(), and never reach the end
where changes were applied.
No radiation was emitted, no nuclear particles were generated.
No waste gases could be removed, neither by fusion waste removal nor by
moderator filtering. Fusion would produce nothing.
It could still enter meltdown, though.
This fixes the endless runtimes like the following:
[07:51:05] Runtime in hypertorus.dm,1067: Cannot execute null.total moles().
[07:52:09] Runtime in hypertorus.dm,957: Cannot execute null.assert gases().
[07:52:17] Runtime in hypertorus.dm,983: Cannot execute null.assert gases().
[07:53:21] Runtime in hypertorus.dm,1012: Cannot execute null.assert gases().
* HFR can now output waste gases again
Co-authored-by: esainane <esainane+github@gmail.com>