feat: add route constant

app/results/page.tsx

@@ -20,6 +20,8 @@ import { DetectionData, DetectionType } from "@/lib/types"
 const API_URL = process.env.NEXT_PUBLIC_API_URL
 
 
+import { ROUTES } from "@/utils/routes"
+
 export default function ResultsPage() {
     const router = useRouter()
     const [session, setSession] = useState<SessionContext | null>(null)
@@ -36,13 +38,13 @@ export default function ResultsPage() {
         const videoData = loadVideoData()
 
         if (!isSessionValid(storedSession) || !videoData) {
-            router.replace("/new-analysis")
+            router.replace(ROUTES.NEW_ANALYSIS)
             return
         }
 
         // If we have a videoId, redirect to the dynamic results page
         if (videoData.videoId) {
-            router.replace(`/results/${videoData.videoId}`)
+            router.replace(`${ROUTES.RESULTS}/${videoData.videoId}`)
             return
         }
 
@@ -59,11 +61,11 @@ export default function ResultsPage() {
             }
         }
         clearSession()
-        router.push("/new-analysis")
+        router.push(ROUTES.NEW_ANALYSIS)
     }
 
     const handleBackToUpload = () => {
-        router.push("/upload")
+        router.push(ROUTES.UPLOAD)
     }
 
     const getTitle = () => {