Stage after merging with project files

src/app.js

@@ -0,0 +1,31 @@
+import cors from 'cors';
+import express from 'express';
+
+import { errorHandler, notFoundHandler } from './middleware/errorHandler.js';
+import configRoutes from './routes/configRoutes.js';
+import healthRoutes from './routes/healthRoutes.js';
+import lookupRoutes from './routes/lookupRoutes.js';
+import templateRoutes from './routes/templateRoutes.js';
+
+const app = express();
+
+app.use(cors());
+app.use(express.json({ limit: '10mb' }));
+
+app.get('/', (_req, res) => {
+  res.json({
+    service: 'check-list-poc-api',
+    version: '0.1.0',
+    description: 'PoC API for template and configuration delivery.'
+  });
+});
+
+app.use('/api/health', healthRoutes);
+app.use('/api/templates', templateRoutes);
+app.use('/api/lookups', lookupRoutes);
+app.use('/api/config', configRoutes);
+
+app.use(notFoundHandler);
+app.use(errorHandler);
+
+export default app;