feat(*): Enable displaying history using localstorage

src/routes/results/+page.svelte

@@ -1,13 +1,31 @@
 <script lang="ts">
 import AssessmentFeedback from '$lib/components/AssessmentFeedback.svelte';
+import AssessmentHistory from '$lib/components/AssessmentHistory.svelte';
 import { onMount } from 'svelte';
 
 let feedback: any = null;
+let history: any[] = [];
+
+function saveToHistory(entry: any) {
+  let prev = [];
+  try {
+    prev = JSON.parse(localStorage.getItem('assessmentHistory') || '[]');
+  } catch {}
+  prev.unshift(entry); // latest first
+  localStorage.setItem('assessmentHistory', JSON.stringify(prev.slice(0, 50)));
+}
 
 onMount(() => {
-  // For hackathon simplicity, get feedback from history state
-  if (window.history.state && window.history.state.feedback) {
-    feedback = window.history.state.feedback;
+  try {
+    history = JSON.parse(localStorage.getItem('assessmentHistory') || '[]');
+    if (history && history.length > 0) {
+      feedback = history[0]; // Show latest as most prominent feedback
+    } else {
+      feedback = null;
+    }
+  } catch {
+    history = [];
+    feedback = null;
   }
 });
 </script>
@@ -17,7 +35,9 @@ onMount(() => {
   <p class="mb-6">View detailed feedback and recommendations for each student submission.</p>
   {#if feedback}
     <AssessmentFeedback {...feedback} />
-  {:else}
+  {/if}
+  {#if !feedback && (!history || history.length === 0)}
     <div class="border rounded p-6 text-gray-500">No results yet. Upload submissions to see feedback here.</div>
   {/if}
+  <AssessmentHistory {history} hideIfEmpty={true} />
 </section>