- sourceBundle Gradle task 추가: 내부망 소스 번들 빌드 지원

- Jenkinsfile 수정: sourceBundle 빌드/아티팩트 보관 적용
- README 갱신: sourceBundle 사용법 추가

Jenkinsfile

@@ -38,7 +38,7 @@ pipeline {
 
     stage('Build JAR') {
       steps {
-        sh 'gradle clean build --no-daemon'
+        sh 'gradle clean build sourceBundle --no-daemon'
       }
     }
 
@@ -69,18 +69,20 @@ pipeline {
           rm -rf build/dist
           mkdir -p build/dist
           cp build/libs/damo-manager.jar build/dist/
+          cp build/distributions/damo-manager-src-*.zip build/dist/
           cp README.md build/dist/
           cd build/dist
-          sha1sum   damo-manager.jar README.md > SHA1SUMS
-          sha256sum damo-manager.jar README.md > SHA256SUMS
+          for f in damo-manager.jar damo-manager-src-*.zip README.md; do
+            sha256sum "$f" > "$f.sha256"
+          done
           ls -la
-          echo "---- SHA256SUMS ----"
-          cat SHA256SUMS
+          echo "---- *.sha256 ----"
+          cat *.sha256
         '''
       }
       post {
         success {
-          archiveArtifacts artifacts: 'build/dist/damo-manager.jar,build/dist/README.md,build/dist/SHA1SUMS,build/dist/SHA256SUMS', fingerprint: true
+          archiveArtifacts artifacts: 'build/dist/damo-manager.jar,build/dist/damo-manager-src-*.zip,build/dist/README.md,build/dist/*.sha256', fingerprint: true
         }
       }
     }