fix jenkinsfile structure, add retry(5) to checkout

platform/Jenkinsfile

@@ -14,18 +14,20 @@ pipeline {
     stages {
         stage('Checkout') {
             steps {
-                checkout([
-                    $class: 'GitSCM',
-                    branches: scm.branches,
-                    userRemoteConfigs: scm.userRemoteConfigs,
-                    extensions: [[
-                        $class: 'CloneOption',
-                        shallow: true,
-                        depth: 1,
-                        noTags: true,
-                        timeout: 20
-                    ]]
-                ])
+                retry(5) {
+                    checkout([
+                        $class: 'GitSCM',
+                        branches: scm.branches,
+                        userRemoteConfigs: scm.userRemoteConfigs,
+                        extensions: [[
+                            $class: 'CloneOption',
+                            shallow: true,
+                            depth: 1,
+                            noTags: true,
+                            timeout: 30
+                        ]]
+                    ])
+                }
             }
         }
 
@@ -90,7 +92,7 @@ pipeline {
             echo '✅ Pipeline succeeded — build + Sonar passed, deployed to k8s'
         }
         failure {
-            echo '❌ Pipeline failed  check logs'
+            echo '❌ Pipeline failed — check logs'
         }
     }
 }