more prep for included-build Gradle plugins

gradle-plugins/factorio-mod-manager/build.gradle.kts

@@ -0,0 +1,24 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+  `kotlin-dsl`
+  kotlin("jvm") version embeddedKotlinVersion
+}
+
+val gradleJvmTarget = "11"
+
+kotlin {
+  jvmToolchain {
+    (this as JavaToolchainSpec).languageVersion.set(JavaLanguageVersion.of(gradleJvmTarget))
+  }
+}
+
+kotlinDslPluginOptions {
+  jvmTarget.set(gradleJvmTarget)
+}
+
+tasks.withType<KotlinCompile>().configureEach {
+  kotlinOptions {
+    jvmTarget = gradleJvmTarget
+  }
+}

gradle-plugins/factorio-mod-manager/settings.gradle.kts

@@ -2,30 +2,11 @@
 
 rootProject.name = "factorio-mod-manager"
 
-
 pluginManagement {
+  @Suppress("UnstableApiUsage")
   includeBuild("../settings-plugins/")
 }
 
-
-dependencyResolutionManagement {
-  repositoriesMode.set(RepositoriesMode.PREFER_SETTINGS)
-
-  repositories {
-    mavenCentral()
-    gradlePluginPortal()
-  }
-
-  pluginManagement {
-    repositories {
-      gradlePluginPortal()
-      mavenCentral()
-    }
-  }
-
-  versionCatalogs {
-    create("libs") {
-      from(files("../../gradle/libs.versions.toml"))
-    }
-  }
+plugins {
+  id("kafkatorio.convention.settings.repositories")
 }