series management tuning and import archive extraction troubleshooting

app/templates/settings.html

@@ -56,6 +56,7 @@
           <button id="clearCompletedBtn" class="btn secondary-btn">Clear Completed</button>
           <button id="regenMissingThumbsBtn" class="btn secondary-btn">Regenerate Missing Thumbnails</button>
           <button id="reapplyArtistTagsBtn" class="btn secondary-btn">Reapply Artist Tags from Paths</button>
+          <button id="cleanupOrphanedTagsBtn" class="btn secondary-btn">Cleanup Orphaned Tags</button>
         </div>
 
         <div id="celeryWorkerInfo" style="margin-top: 1rem;">
@@ -762,6 +763,41 @@ document.addEventListener('DOMContentLoaded', () => {
     }
   });
 
+  // Cleanup Orphaned Tags
+  document.getElementById('cleanupOrphanedTagsBtn').addEventListener('click', async () => {
+    const btn = document.getElementById('cleanupOrphanedTagsBtn');
+
+    if (!confirm('This will delete all tags that are not attached to any images. Continue?')) {
+      return;
+    }
+
+    btn.disabled = true;
+    btn.textContent = 'Cleaning up...';
+
+    try {
+      const r = await fetch('/api/cleanup-orphaned-tags', { method: 'POST' });
+      const data = await r.json();
+
+      if (data.ok) {
+        if (data.deleted_count === 0) {
+          alert('No orphaned tags found.');
+        } else {
+          const tagList = data.deleted_tags.map(t => `${t.name} (${t.kind || 'user'})`).join('\n');
+          alert(`Deleted ${data.deleted_count} orphaned tag(s):\n\n${tagList}`);
+        }
+        // Refresh the tag dropdown if visible
+        loadTagsForDeletion();
+      } else {
+        alert('Failed: ' + (data.error || 'Unknown error'));
+      }
+    } catch (e) {
+      alert('Failed: ' + e.message);
+    } finally {
+      btn.disabled = false;
+      btn.textContent = 'Cleanup Orphaned Tags';
+    }
+  });
+
   // Load import settings
   fetch('/api/import-settings')
     .then(r => r.json())