build: build-logic 约定插件 (mcl.*)

build-logic/convention/src/main/kotlin/JvmLibraryConventionPlugin.kt

@@ -0,0 +1,25 @@
+import com.mingyuan.androidclient.buildlogic.configureKotlinJvm
+import com.mingyuan.androidclient.buildlogic.configureSpotless
+import com.mingyuan.androidclient.buildlogic.libs
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.apply
+import org.gradle.kotlin.dsl.dependencies
+
+/**
+ * Convention for pure Kotlin/JVM modules (no Android dependency) such as :core:model and
+ * :core:domain. Keeping these modules Android-free keeps them fast to test and forces domain
+ * logic to stay framework-agnostic.
+ */
+class JvmLibraryConventionPlugin : Plugin<Project> {
+    override fun apply(target: Project) {
+        with(target) {
+            apply(plugin = "org.jetbrains.kotlin.jvm")
+            configureKotlinJvm()
+            configureSpotless()
+            dependencies {
+                "testImplementation"(libs.findLibrary("junit").get())
+            }
+        }
+    }
+}