Add Jenkinsfile for CI and update build.gradle.kts

Introduce a Jenkinsfile to automate the build, archive, and notification stages in a pipeline. Additionally, modify build.gradle.kts to standardize the shadowJar output filename and remove versioning details from the filename.

Jenkinsfile

@@ -0,0 +1,20 @@
+pipeline {
+    agent any
+    stages {
+        stage('Gradle') {
+            steps {
+                sh 'bash gradlew shadowJar -x test'
+            }
+        }
+        stage('Archive') {
+            steps {
+                archiveArtifacts artifacts: 'build/libs/', followSymlinks: false
+            }
+        }
+        stage('discord') {
+            steps {
+                discordSend description: "Build: ${BUILD_NUMBER}", showChangeset: true, result: currentBuild.currentResult, title: currentBuild.fullProjectName, webhookURL: env.discordwebhook
+            }
+        }
+    }
+}

build.gradle.kts

@@ -7,7 +7,6 @@ plugins {
 allprojects {
     val build = System.getenv("BUILD_NUMBER") ?: "SNAPSHOT"
     group = "com.alttd.proxydiscordlink"
-    version = "1.0.1-BETA-$build"
     description = "A velocity plugin to link Discord and Minecraft accounts."
 
     apply(plugin = "java")
@@ -54,14 +53,8 @@ dependencies {
     tasks {
 
         shadowJar {
-            archiveFileName.set("${project.name}-${project.version}.jar")
-//            exclude("net.kyori.adventure")
-//            exclude("net.kyori.examination")
-            minimize {
-                //exclude(dependency("net.kyori:.*:.*"))
-            }
+            archiveFileName.set("discordLink.jar")
             listOf(
-//            "net.kyori",
                 "net.dv8tion.jda"
             ).forEach { relocate(it, "${rootProject.group}.lib.$it") }
         }