feat: Implement get step connection API endpoint

packages/backend/src/routes/api/v1/steps.js

@@ -0,0 +1,16 @@
+import { Router } from 'express';
+import asyncHandler from 'express-async-handler';
+import { authenticateUser } from '../../../helpers/authentication.js';
+import { authorizeUser } from '../../../helpers/authorization.js';
+import getConnectionAction from '../../../controllers/api/v1/steps/get-connection.js';
+
+const router = Router();
+
+router.get(
+  '/:stepId/connection',
+  authenticateUser,
+  authorizeUser,
+  asyncHandler(getConnectionAction)
+);
+
+export default router;