create a minigame in the plugin along with the world and map for the UHCRUN minigame I want it to be the type where the game starts with all players spawning in an open world where they will have to mine resources but pvp will still be turned off, I want there to be 1.3x greater chances for: diamonds, iron, gold, lapis, redstone and I want the trees to dig themselves automatically after one random piece of wood on a given tree is dug and I want the mining time to be 20 minutes and after 20 minutes everyone to spawn into that world again and the remaining 40 minutes I want pvp to be turned on and players can kill each other, I want it in solo and duo mode and I want the world to shrink for those 40 minutes, I mean that I need you to create a large border of barrier or something visually good and scary in that world during the mining phase, and for it to keep shrinking until until there is a 30x30 space left where everyone can be so that it teleports them to a 25x25 space but in the air where the floor will be flat and I will be able to build everything there but I will not have any obstacles