feat: Refactor result preparation and add contradiction checks

backend/package.json

@@ -13,17 +13,20 @@
   "author": "",
   "license": "ISC",
   "devDependencies": {
+    "@types/cors": "^2.8.19",
+    "@types/dotenv": "^6.1.1",
     "@types/express": "^4.17.13",
     "@types/jest": "^27.0.3",
     "@types/node": "^16.11.12",
+    "@types/supertest": "^6.0.3",
     "@types/uuid": "^8.3.4",
     "@types/ws": "^8.2.2",
     "jest": "^27.4.3",
     "nodemon": "^2.0.15",
+    "supertest": "^7.1.4",
     "ts-jest": "^27.1.0",
     "ts-node": "^10.4.0",
-    "typescript": "^4.5.2",
-    "@types/cors": "^2.8.19"
+    "typescript": "^4.5.2"
   },
   "dependencies": {
     "@google/generative-ai": "^0.1.0",