adding Jenkinsfile

ading Jenkinsfile for pipeline setup

Jenkinsfile

@@ -0,0 +1,40 @@
+pipeline {
+    agent any
+
+    stages {
+        stage('Checkout') {
+            steps {
+                checkout scm
+            }
+        }
+
+        stage('Install Dependencies') {
+            steps {
+                sh 'npm install'  // or mvn install / pip install
+            }
+        }
+
+        stage('SAST - Semgrep') {
+            steps {
+                sh 'semgrep scan --config auto --json > semgrep-report.json || true'
+            }
+            post {
+                always {
+                    archiveArtifacts artifacts: 'semgrep-report.json'
+                }
+            }
+        }
+
+        stage('Unit Tests') {
+            steps {
+                sh 'npm test || true'
+            }
+        }
+    }
+
+    post {
+        always {
+            echo "Dev pipeline finished"
+        }
+    }
+}