R-UST fuel injector overhaul

[DamianX]

Needs changelog, wiki update, testing of the fuel port.
Tested.
Addresses some of #16190

it's mostly a UI/QoL + code style change, with the core functionality staying intact

🆑

• tweak: The R-UST fuel injector no longer requires cable coils in construction. It can now be deconstructed, and its circuit board is available from the circuit imprinter.
• tweak: The R-UST fuel injector has a new UI.

[Kurfursten]

What do you know, there was a build recipe after all. It just wasn't in constructable_frame for reasons unknown.

For maintainability it might be best to kill Rust/circuits and move those to the rest of the designs

[Kurfursten]

As a reminder, under boards/machine_engie.dm, look up the /datum/design/rust_injector

It builds the wrong board

[DamianX]

But this PR addresses that?

[Kurfursten]

I missed that file change. 👍

[ghost]

god bless, i remember the pain of convincing R&D i needed specific parts for the R-UST machines one round, it was faster to just order the things

the new UI is good too, the old one was a bit ech