chore: remove sample-nodejs-app source code and CI/CD configuration

code/sample-nodejs-app/Dockerfile

@@ -1,16 +0,0 @@
-# Build stage
-FROM node:18-slim AS builder
-WORKDIR /app
-COPY package*.json ./
-RUN npm install
-COPY . .
-
-# Production stage
-FROM node:18-slim
-WORKDIR /app
-COPY --from=builder /app/package*.json ./
-COPY --from=builder /app/node_modules ./node_modules
-COPY --from=builder /app/index.js ./
-
-EXPOSE 3000
-CMD ["node", "index.js"]

code/sample-nodejs-app/Jenkinsfile

@@ -1,67 +0,0 @@
-pipeline {
-    agent any
-
-    environment {
-        APP_NAME = 'sample-nodejs-app'
-        DOCKER_IMAGE = "test-cicd/${APP_NAME}:${env.BUILD_NUMBER}"
-    }
-
-    stages {
-        stage('Checkout') {
-            steps {
-                checkout scm
-            }
-        }
-
-        stage('Install Dependencies') {
-            steps {
-                dir('code/sample-nodejs-app') {
-                    sh 'npm install'
-                }
-            }
-        }
-
-        stage('Test') {
-            steps {
-                dir('code/sample-nodejs-app') {
-                    sh 'npm test'
-                }
-            }
-        }
-
-        stage('Build Docker Image') {
-            steps {
-                dir('code/sample-nodejs-app') {
-                    sh "docker build -t ${APP_NAME}:latest ."
-                }
-            }
-        }
-
-        stage('Push to Registry') {
-            steps {
-                echo 'Pushing image to registry...'
-                // sh "docker tag ${APP_NAME}:latest ${DOCKER_IMAGE}"
-                // sh "docker push ${DOCKER_IMAGE}"
-            }
-        }
-
-        stage('Deploy to K8s') {
-            steps {
-                echo 'Deploying to Kubernetes...'
-                // sh "kubectl set image deployment/${APP_NAME} ${APP_NAME}=${DOCKER_IMAGE}"
-            }
-        }
-    }
-
-    post {
-        always {
-            cleanWs()
-        }
-        success {
-            echo 'Pipeline completed successfully!'
-        }
-        failure {
-            echo 'Pipeline failed!'
-        }
-    }
-}

code/sample-nodejs-app/index.js

@@ -1,23 +0,0 @@
-const express = require('express');
-const app = express();
-const port = process.env.PORT || 3000;
-
-app.get('/', (req, res) => {
-  res.json({
-    message: 'Hello World from Antigravity!',
-    status: 'success',
-    timestamp: new Date().toISOString()
-  });
-});
-
-app.get('/health', (req, res) => {
-  res.status(200).send('OK');
-});
-
-if (require.main === module) {
-  app.listen(port, () => {
-    console.log(`Server is running on port ${port}`);
-  });
-}
-
-module.exports = app;

code/sample-nodejs-app/package.json

@@ -1,17 +0,0 @@
-{
-  "name": "sample-nodejs-app",
-  "version": "1.0.0",
-  "description": "A sample Node.js app for CI/CD demonstration",
-  "main": "index.js",
-  "scripts": {
-    "start": "node index.js",
-    "test": "jest"
-  },
-  "dependencies": {
-    "express": "^4.18.2"
-  },
-  "devDependencies": {
-    "jest": "^29.5.0",
-    "supertest": "^6.3.3"
-  }
-}

code/sample-nodejs-app/test/app.test.js

@@ -1,19 +0,0 @@
-const request = require('supertest');
-const app = require('../index');
-
-describe('GET /', () => {
-  it('should return 200 OK and a welcome message', async () => {
-    const res = await request(app).get('/');
-    expect(res.statusCode).toEqual(200);
-    expect(res.body).toHaveProperty('message');
-    expect(res.body.message).toContain('Hello World');
-  });
-});
-
-describe('GET /health', () => {
-  it('should return 200 OK', async () => {
-    const res = await request(app).get('/health');
-    expect(res.statusCode).toEqual(200);
-    expect(res.text).toEqual('OK');
-  });
-});