ci: add Jenkinsfile to delete .png and .mp4 files from workspace every 15 days

jenkins/removeMedia

@@ -0,0 +1,75 @@
+pipeline {
+    agent any
+
+    triggers {
+        // Runs at midnight on the 1st and 16th of every month ≈ every 15 days
+        cron('0 0 1,16 * *')
+    }
+
+    options {
+        buildDiscarder(logRotator(numToKeepStr: '10'))
+        timestamps()
+        timeout(time: 15, unit: 'MINUTES')
+    }
+
+    environment {
+        TARGET_DIR = '/var/lib/jenkins/workspace/'
+    }
+
+    stages {
+
+        stage('Preview Files to Delete') {
+            steps {
+                echo "🔍 Scanning for .png and .mp4 files in: ${TARGET_DIR}"
+                sh '''
+                    echo "---------------------------------------------------"
+                    echo "Files found:"
+                    find "$TARGET_DIR" -type f \\( -name "*.png" -o -name "*.mp4" \\) | while read -r file; do
+                        echo "  [FOUND] $file"
+                    done
+                    echo "---------------------------------------------------"
+                    TOTAL=$(find "$TARGET_DIR" -type f \\( -name "*.png" -o -name "*.mp4" \\) | wc -l)
+                    echo "Total files to be deleted: $TOTAL"
+                '''
+            }
+        }
+
+        stage('Delete PNG and MP4 Files') {
+            steps {
+                echo "🗑️ Deleting .png and .mp4 files..."
+                sh '''
+                    find "$TARGET_DIR" -type f \\( -name "*.png" -o -name "*.mp4" \\) -delete
+                    echo "✅ Deletion complete."
+                '''
+            }
+        }
+
+        stage('Verify Cleanup') {
+            steps {
+                echo "🔎 Verifying cleanup..."
+                sh '''
+                    REMAINING=$(find "$TARGET_DIR" -type f \\( -name "*.png" -o -name "*.mp4" \\) | wc -l)
+                    echo "Remaining .png / .mp4 files: $REMAINING"
+                    if [ "$REMAINING" -eq 0 ]; then
+                        echo "✅ Workspace is clean. No media files remaining."
+                    else
+                        echo "⚠️ Warning: $REMAINING file(s) could not be deleted."
+                        exit 1
+                    fi
+                '''
+            }
+        }
+    }
+
+    post {
+        success {
+            echo "🎉 Cleanup job completed successfully on $(date)."
+        }
+        failure {
+            echo "❌ Cleanup job failed. Please check the logs above."
+        }
+        always {
+            echo "📋 Job: ${env.JOB_NAME} | Build: #${env.BUILD_NUMBER} | Status: ${currentBuild.currentResult}"
+        }
+    }
+}