Keep completed duel outcomes visible throughout the scene

frontend/src/components/scene/ChallengePanel.svelte

@@ -17,6 +17,7 @@
 
     $: hand = state.player.hand_cards ? JSON.parse(state.player.hand_cards) : [];
     $: openChallenges = (state.challenges || []).filter(c => c.status === 'open');
+    $: completedDuels = (state.challenges || []).filter(c => c.challenge_type === 'pvp' && ['succeeded', 'failed'].includes(c.status));
     $: challengedObstacleIds = new Set(openChallenges.flatMap(c => JSON.parse(c.obstacle_ids || '[]')));
     $: myTaxRequest = openChallenges.find(c => c.tax_state === 'requested' && c.tax_target_id === state.player.id) || null;
     $: myPvpDefense = openChallenges.find(c => c.challenge_type === 'pvp' && c.acting_player_id === state.player.id) || null;
@@ -184,6 +185,25 @@
     </div>
 {/each}
 
+<!-- Results remain available until the next scene, including after a reload. -->
+{#each completedDuels as ch (ch.id)}
+    <div class="challenge-item duel-result">
+        <h4>⚔️ Duel: {playerName(ch.challenger_player_id)} vs {playerName(ch.target_player_id)}</h4>
+        <p class="duel-outcome">
+            {ch.status === 'succeeded' ? '✓' : '✕'}
+            <strong>{playerName(ch.acting_player_id)} {ch.status === 'succeeded' ? 'won the defense' : 'lost the defense'}.</strong>
+            {playerName(ch.status === 'succeeded' ? ch.acting_player_id : ch.challenger_player_id)} wins the duel.
+        </p>
+        <p class="info-text">Temporary Obstacle: <strong use:tooltip={{ html: cardTooltipHtml(ch.temp_card, $obstacleTable, true) }}>{getCardDisplay(ch.temp_card)}</strong></p>
+        {#each JSON.parse(ch.plays || '[]') as play}
+            <p class="info-text">
+                Defense: <strong use:tooltip={{ html: cardTooltipHtml(play.card, $obstacleTable, true) }}>{getCardDisplay(play.card)}</strong>.
+                {play.details}
+            </p>
+        {/each}
+    </div>
+{/each}
+
 <!-- Deep controls: call a Challenge, and end the scene when none is active -->
 <!-- The Deep calls Challenges and ends the scene only when none is active. -->
 {#if isDeep && openChallenges.length === 0}