init: add starter code

Author: charliewwdev

.github/workflows/ci.yml

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+name: CI
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+      - run: npm install
+      - run: npm test

README.md

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+# Demo API Backend
+
+A minimal Node.js + TypeScript REST API used for OpenDev E2E testing.
+
+## Endpoints
+- GET /health — health check
+- GET /api/v1/users — list users
+
+## Development
+npm install && npm run dev

package.json

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+{
+  "name": "demo-api-backend",
+  "version": "0.1.0",
+  "scripts": {
+    "dev": "ts-node src/index.ts",
+    "build": "tsc",
+    "test": "jest"
+  },
+  "dependencies": {
+    "express": "^4.18.0"
+  },
+  "devDependencies": {
+    "@types/express": "^4.17.0",
+    "@types/node": "^20.0.0",
+    "typescript": "^5.0.0",
+    "ts-node": "^10.9.0",
+    "jest": "^29.0.0"
+  }
+}

src/index.ts

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+import express from 'express'
+
+const app = express()
+const PORT = process.env.PORT ?? 3000
+
+app.get('/health', (_req, res) => {
+  res.json({ status: 'ok', service: 'demo-api-backend' })
+})
+
+app.get('/api/v1/users', (_req, res) => {
+  res.json({ data: [{ id: '1', name: 'Alice' }, { id: '2', name: 'Bob' }] })
+})
+
+app.listen(PORT, () => {
+  console.log(`API running on port ${PORT}`)
+})