Dynamic Mice: Let's populate maintenance randomly

[Vi3trice]

What Does This PR Do

This creates a step in the late mapping process where mice are spawned in maintenance randomly, with a random ratio range. Instead of just placing them manually, let the game do it for you unless you have really specific spots in mind.

Current ratios are 125 to 200 valid maintenance turfs per mice, making it range from 20 to 30 on Boxstation.

Maps are edited to remove all mice except for Tom, as the current fixed spawns would be excessive on top of the random ones (Except for Delta, which has a notable lack of mice). Let me know if there's some that should remain, or if the ratio should be tweaked.

Why It's Good For The Game

Mice being hard placed essentially means they'll have the same outcome most of the time (i.e. chew on the same cable every round). This changes things up, and is not reliant on dropping random spawners.

Images of changes

Testing

Launched an instance, and looked around for mice.

---

Declaration

• I confirm that I either do not require pre-approval for this PR, or I have obtained such approval and have included a screenshot to demonstrate this below.

---

Changelog

🆑
add: Added dynamic spawning of mice in maintenance on new rounds.
del: Removed fixed spawn points for mice (Except Tom) in all stations.
/:cl:

[Drsmail]

Really love your idea! One thing, can i ssk you to read this and include necessary files, for smoth experience on downstream? We have different maps.

https://github.com/ParadiseSS13/Paradise/tree/master/tools/UpdatePaths

P.S. I forgot you need to leave some special mouses, not sure now if it can be done with this tool

[Drsmail]

I think it's good to go as it is. But you might wanna check my comment and maybe give it a slight improvement

resolved