swagger jsodc setup merge conflicts fixed

.gitignore

@@ -1,3 +1,4 @@
 /node_modules
 .env
 /coverage
+/dist

app.ts

@@ -0,0 +1,16 @@
+import express, { Request, Response } from "express";
+import swaggerUi from 'swagger-ui-express';
+import specs from './swagger.config';
+
+const app = express();
+
+app.use(express.json());
+
+// Route handler with underscore to indicate unused parameter
+app.get('/', (_req: Request, res: Response) => {
+    return res.json({ message: "welcome to ATLP Backend APIs" });
+});
+// Swagger UI route
+app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(specs));
+
+export default app;