Add kit system, KitManager and Goblin kit

Introduce a full kit framework and supporting utilities.

- Add core kit API: Kit, Playstyle, ActiveAbility, PassiveAbility, AbilityResult, charge state and PlayerChargeData.
- Implement KitManager for registration, lobby selections, apply/remove/clear lifecycle and charge tracking.
- Add KitEventDispatcher listener to centralize kit event handling (interact, hits, move) and integrate passive/active hooks.
- Provide example kit implementations: GoblinKit (functional abilities) and TemplateKit (reference).
- Add utilities: ItemBuilder and WorldEditUtils (WorldEdit-based sphere creation).
- Integrate into plugin: SpeedHG now initialises KitManager, registers kits and KitEventDispatcher, applies kits at game start and clears on end.
- LanguageManager: add default message/list/component helpers.
- Build changes: bump Kotlin plugin to 2.2.0 and add WorldEdit compileOnly deps; also expose legacySerializer in Extensions.

These changes implement the kit feature set (items, abilities, charge/recharge flow) and wire it into the game lifecycle.

build.gradle.kts

@@ -2,8 +2,8 @@ plugins {
 	id("java")
 	id("maven-publish")
 	id("com.github.johnrengelman.shadow") version "8.1.1"
-	kotlin("jvm") version libs.versions.kotlin
-	kotlin("kapt") version libs.versions.kotlin
+	kotlin("jvm") version "2.2.0"
+	kotlin("kapt") version "2.2.0"
 }
 
 group = "club.mcscrims"
@@ -17,11 +17,16 @@ repositories {
 	maven("https://libraries.minecraft.net/")
 	maven("https://repo.codemc.io/repository/maven-public/")
 	maven("https://repo.lunarclient.dev")
+	maven("https://maven.enginehub.org/repo/")
 }
 
 dependencies {
 	implementation("fr.mrmicky:fastboard:2.1.3")
+
 	compileOnly("io.papermc.paper:paper-api:1.21.1-R0.1-SNAPSHOT")
+
+	compileOnly("com.sk89q.worldedit:worldedit-core:7.2.17-SNAPSHOT")
+	compileOnly("com.sk89q.worldedit:worldedit-bukkit:7.2.17-SNAPSHOT")
 }
 
 tasks {