Fix web UI infinite loop and improve cookie age tracking

- Add cookieDateInitialized flag to prevent infinite init-cookie-date calls
- Auto-initialize cookie date when cookie exists but date not tracked
- Improve local vs external track detection in Jellyfin playlists
- Support multiple Spotify playlist ID formats (ID, URI, URL)
- Fix pragma warnings in legacy playlist parsing code
- Simplify GetPlaylistTrackStats to check Path property for local tracks

allstarr/wwwroot/index.html

@@ -848,6 +848,9 @@
         let currentEditType = null;
         let currentEditOptions = null;
         
+        // Track if we've already initialized the cookie date to prevent infinite loop
+        let cookieDateInitialized = false;
+        
         // Tab switching
         document.querySelectorAll('.tab').forEach(tab => {
             tab.addEventListener('click', () => {
@@ -921,21 +924,25 @@
         
         // Initialize cookie date if cookie exists but date is not set
         async function initCookieDate() {
+            if (cookieDateInitialized) {
+                console.log('Cookie date already initialized, skipping');
+                return;
+            }
+            
+            cookieDateInitialized = true;
+            
             try {
                 const res = await fetch('/api/admin/config/init-cookie-date', { method: 'POST' });
                 if (res.ok) {
-                    console.log('Cookie date initialized successfully');
-                    // Refresh status after initialization
-                    setTimeout(() => {
-                        fetchStatus();
-                        fetchConfig();
-                    }, 500);
+                    console.log('Cookie date initialized successfully - restart container to apply');
+                    showToast('Cookie date set. Restart container to apply changes.', 'success');
                 } else {
                     const data = await res.json();
                     console.log('Cookie date init response:', data);
                 }
             } catch (error) {
                 console.error('Failed to init cookie date:', error);
+                cookieDateInitialized = false; // Allow retry on error
             }
         }