feat: render availableForUpgrade badge on failed history items where episode/movie is already on disk

public/app.js

@@ -973,6 +973,14 @@ function createHistoryCard(item) {
   outcomeBadge.textContent = item.outcome === 'imported' ? '✓ Imported' : '✗ Failed';
   header.appendChild(outcomeBadge);
 
+  if (item.availableForUpgrade) {
+    const upgradeBadge = document.createElement('span');
+    upgradeBadge.className = 'history-upgrade-badge';
+    upgradeBadge.title = 'A previous version of this item is available. An upgrade download has failed.';
+    upgradeBadge.textContent = '⬆ Available';
+    header.appendChild(upgradeBadge);
+  }
+
   if (item.instanceName) {
     const instBadge = document.createElement('span');
     instBadge.className = 'history-instance-badge';

public/style.css

@@ -779,7 +779,8 @@ body {
 
 .history-type-badge,
 .history-outcome-badge,
-.history-instance-badge {
+.history-instance-badge,
+.history-upgrade-badge {
   font-size: 0.72rem;
   font-weight: 600;
   padding: 2px 7px;
@@ -787,6 +788,12 @@ body {
   white-space: nowrap;
 }
 
+.history-upgrade-badge {
+  background: #e67e22;
+  color: #fff;
+  cursor: default;
+}
+
 .history-type-badge.series {
   background: var(--badge-series-bg, #2980b9);
   color: #fff;