Made procgen naked beach spawns fairer to cover more areas of beach with less strict checks
* Also fixes party spawns not working on first spawn; reset pooled team spawn state
* Reduced monument check from 50m to 30m using painted topology, not boxes
* Allow spawning on jungle/desert coastline if it is 50m away from temperate/tundra
* Don't block spawning near swamps, substations or caves
* Fairer weighting so smaller beaches see more spawns (sqrt of area rather than just area)
* Opened up more coastline to spawning by allowing spawn within 5m of Oceanside texels
* Skip spawnpoints that are >0.5 underwater (fixes existing rare bugs)
* Before/After images below :
* https://files.facepunch.com/jacob/2026/November/12_11_16-34-GlassDobermanpinscher.png
* https://files.facepunch.com/jacob/2026/November/12_11_16-35-RapidFoxterrier.png
* https://files.facepunch.com/jacob/2026/November/12_11_16-35-BustlingBlackfish.png
* https://files.facepunch.com/jacob/2026/November/12_11_16-35-FavoriteGrasshopper.png