Fixes negative payment in NTpay & Encodes name param sent to admins in fax

[ghost]

About The Pull Request

NTpay wasn't validating negative input serverside, allowing for negative payment to users(Negative - Negative = Positive, so it adds money to the senders account.) Also encodes a parameter that was sent unsanitized to admins.

Why It's Good For The Game

Changelog

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fix: Fixes a NTPay exploit.
/:cl:

[Fikou]

thank you for the pr in the future can you not tell people how to do these with a fully detailed guide on how to run these exploits every round (people hijack the game by running them every round)

[ghost]

thank you for the pr in the future can you not tell people how to do these with a fully detailed guide on how to run these exploits every round (people hijack the game by running them every round)

I didn't expect them to exploit it. I just wanted more people to know how such an exploit could be done. Unlike hrefs very few people know how these things work, and I think it leads to UI developers not expecting these things to even be possible. I apologize.