Compile against Adventure 5.2.0, the version Paper 26.3 ships

Paper still provides Adventure at runtime. Every Adventure method Iris calls has the same signature in 4.17 and 5.2.0, so older servers keep working.

Model used: Claude Opus 5.5

core/build.gradle.kts

@@ -53,6 +53,7 @@ val lib = "com.volmit.iris.util"
 dependencies {
     // Provided or Classpath
     compileOnly(libs.paper)
+    compileOnly(platform(libs.adventure.bom))
     compileOnly(libs.log4j.api)
     compileOnly(libs.log4j.core)
 

gradle/libs.versions.toml

@@ -14,6 +14,7 @@ grgit = "5.3.2" # https://github.com/ajoberstar/grgit
 # Core Libraries
 lombok = "1.18.38"
 paper = "1.20.1-R0.1-SNAPSHOT" # https://repo.papermc.io/repository/maven-public/io/papermc/paper/paper-api/maven-metadata.xml
+adventure = "5.2.0" # https://github.com/KyoriPowered/adventure
 log4j = "2.19.0" # https://central.sonatype.com/artifact/org.apache.logging.log4j/log4j-api
 
 annotations = "26.0.2" # https://central.sonatype.com/artifact/org.jetbrains/annotations
@@ -58,6 +59,7 @@ craftengine = "26.5" # https://github.com/Xiao-MoMi/craft-engine/releases
 # Core Libraries
 lombok = { module = "org.projectlombok:lombok", version.ref ="lombok" }
 paper = { module = "io.papermc.paper:paper-api", version.ref = "paper" }
+adventure-bom = { module = "net.kyori:adventure-bom", version.ref = "adventure" }
 log4j-api = { module = "org.apache.logging.log4j:log4j-api", version.ref = "log4j" }
 log4j-core = { module = "org.apache.logging.log4j:log4j-core", version.ref = "log4j" }
 annotations = { module = "org.jetbrains:annotations", version.ref = "annotations" }