added dedicated cli module

gbcs-api/build.gradle

@@ -1,5 +1,6 @@
 plugins {
     id 'java-library'
+    id 'maven-publish'
     alias catalog.plugins.lombok
 }
 
@@ -9,3 +10,11 @@ dependencies {
 tasks.named(JavaPlugin.COMPILE_JAVA_TASK_NAME, JavaCompile) {
     options.javaModuleVersion = version
 }
+
+publishing {
+    publications {
+        maven(MavenPublication) {
+            from(components["java"])
+        }
+    }
+}