ci: add release workflow

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v4
 
-    - name: Set up JDK 17 (for Gradle/Spotless)
+    - name: Set up JDK 17
       uses: actions/setup-java@v4
       with:
         java-version: '17'

.github/workflows/release.yml

@@ -0,0 +1,47 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  release:
+    name: Create Release
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v5
+
+    - name: Build JAR
+      run: ./gradlew clean jar --no-daemon
+      env:
+        GRADLE_OPTS: -Dorg.gradle.java.installations.auto-download=true
+
+    - name: Extract version from tag
+      id: version
+      run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
+
+    - name: Create Release
+      uses: softprops/action-gh-release@v2
+      with:
+        name: Release ${{ steps.version.outputs.VERSION }}
+        draft: false
+        prerelease: false
+        generate_release_notes: true
+        files: |
+          build/libs/nsL.jar
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}