Refactor build scripts and Jenkinsfile

api/build.gradle.kts

@@ -1,31 +1,28 @@
 plugins {
-    `maven-publish`
+    id("java-library")
+    id("maven-publish")
 }
 
-dependencies {
-    compileOnly("io.papermc.paper:paper-api:1.21.6-R0.1-SNAPSHOT")
-}
-
-tasks {
-    jar {
-        enabled = true
-    }
+// Configure API-specific settings
+base {
+    archivesName.set("DataLockLibApi")
 }
 
 publishing {
     publications {
         create<MavenPublication>("mavenJava") {
+            artifactId = "api"
             from(components["java"])
         }
     }
 
-    repositories{
+    repositories {
         maven {
             name = "nexus"
             url = uri("https://repo.alttd.com/repository/alttd-snapshot/")
             credentials {
-                username = project.property("alttdDevPublishUser") as String
-                password = project.property("alttdDevPublishPass") as String
+                username = project.findProperty("alttdDevPublishUser")?.toString()
+                password = project.findProperty("alttdDevPublishPass")?.toString()
             }
         }
     }