feat(API): Implement BE api for insights data (#14064)

Co-authored-by: Danny Martini <danny@n8n.io>

packages/cli/test/integration/shared/utils/test-server.ts

@@ -290,6 +290,9 @@ export const setupTestServer = ({
 
 					case 'folder':
 						await import('@/controllers/folder.controller');
+
+					case 'insights':
+						await import('@/modules/insights/insights.controller');
 				}
 			}