Added 1.21.1 mod targets

- Build Fabric, Forge and NeoForge per target listed in gradle/mod-targets.json (1.21.1, 26.3)
- Add 1.21.1 adapter source overlays under adapters/*/src/versions/1.21.1
- Add verifyModdedMatrix and per-target Java runtime verification of loader jars
- Re-inject persistent dimensions from the levels-ready hook before the watchdog starts
- Wait for queued chunks and the final save before pregen completes
- Add the 1.21.1 data version and datapack supported_formats range
- Cascade regions whose sea or shore pool loses every biome
- Use Gson calls available on the 1.21.1 runtime

adapters/forge/build.gradle

@@ -22,6 +22,7 @@ import org.gradle.api.file.FileCopyDetails
 import org.gradle.api.file.FileSystemOperations
 import org.gradle.api.file.FileTree
 import org.gradle.api.tasks.compile.JavaCompile
+import org.gradle.api.attributes.Bundling
 import org.gradle.jvm.toolchain.JavaLanguageVersion
 
 import javax.inject.Inject
@@ -42,6 +43,8 @@ plugins {
     alias(libs.plugins.shadow)
 }
 
+apply from: file('../../gradle/mod-target.gradle')
+
 apply plugin: 'art.arcane.volmit-packaging'
 
 interface IrisFileOperations {
@@ -58,7 +61,7 @@ Properties rootProperties = new Properties()
 file('../../gradle.properties').withInputStream { InputStream stream -> rootProperties.load(stream) }
 String irisVersion = providers.gradleProperty('irisVersion').getOrElse(rootProperties.getProperty('irisVersion', '4.3.3'))
 String minecraftVersion = providers.gradleProperty('minecraftVersion').getOrElse(rootProperties.getProperty('minecraftVersion', '26.3'))
-String forgeVersion = providers.gradleProperty('forgeVersion').getOrElse(rootProperties.getProperty('forgeVersion', '26.3-66.0.8'))
+String forgeVersion = providers.gradleProperty('forgeVersion').getOrElse(irisModTarget.forge.toString())
 Closure<String> loaderDisplayVersion = { String loaderVersion ->
     String coordinatePrefix = "${minecraftVersion}-"
     if (loaderVersion.startsWith(coordinatePrefix)) {
@@ -165,7 +168,7 @@ dependencies {
     testImplementation(libs.spigot) {
         transitive = false
     }
-    compileOnly('org.slf4j:slf4j-api:2.0.17')
+    compileOnly("org.slf4j:slf4j-api:${irisModTarget.slf4j}")
     compileOnly(libs.spigot) {
         transitive = false
     }
@@ -200,14 +203,23 @@ dependencies {
         libs.jaxen
     ]
     shared.each { Object notation ->
-        add('bundle', notation)
-        add('devBundle', notation)
-        add('runBundle', notation)
+        ['bundle', 'devBundle', 'runBundle'].each { String configuration ->
+            add(configuration, notation) {
+                if (group == 'art.arcane' && name == 'core') {
+                    attributes {
+                        attribute(Bundling.BUNDLING_ATTRIBUTE, objects.named(Bundling, Bundling.EXTERNAL))
+                    }
+                }
+            }
+        }
     }
 }
 
 minecraft {
-    accessTransformer.from(art.arcane.volmit.packaging.NativeAccessRules.prepare(nativeSourceImplementation, "forge", layout.buildDirectory.dir("native-access").get().asFile))
+    if (irisModTarget.fabricRemap) {
+        mappings channel: 'official', version: minecraftVersion
+    }
+    accessTransformer.from(art.arcane.volmit.packaging.NativeAccessRules.prepare(irisModTarget.nativeAccess.toString(), "forge", layout.buildDirectory.dir("native-access").get().asFile))
     runs {
         register('client') {
             workingDir = layout.projectDirectory.dir('run')
@@ -241,7 +253,8 @@ minecraft {
 
 tasks.named('compileJava', JavaCompile).configure {
     options.encoding = 'UTF-8'
-    options.release.set(25)
+    options.compilerArgs.addAll(['-Xmaxerrs', '2000'])
+    options.release.set((int) irisModTarget.java)
 }
 
 tasks.named('test').configure {
@@ -280,6 +293,10 @@ tasks.named('shadowJar', ShadowJar).configure {
     configurations = [project.configurations.named('bundle').get()]
     from(sourceSets.main.output)
     mergeServiceFiles()
+    if ((int) irisModTarget.java == 21) {
+        exclude('art/arcane/volmlib/util/noise/NativeBillowLoader*.class')
+        exclude('art/arcane/volmlib/util/noise/BillowBatch*.class')
+    }
     exclude('META-INF/maven/**')
     exclude('META-INF/proguard/**')
     exclude('META-INF/*.SF')
@@ -345,3 +362,5 @@ pluginPackaging {
         }
     }
 }
+
+apply from: file('../../gradle/modded-version-sources.gradle')