feat: add manual TMDB/TVDB ID entry for failed lookups

- Add PATCH /api/anime/{key}/metadata-ids endpoint to update IDs
- Add POST /api/anime/{key}/refresh-nfo endpoint to force NFO regeneration
- Add Edit Metadata IDs modal in frontend
- Add showEditMetadataModal, saveMetadataIds, refreshSeriesNfo JS functions
- Add edit-metadata-btn to series cards with database icon
- IDs validated as positive integers or null

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/server/web/static/js/index/series-manager.js

@@ -40,6 +40,31 @@ AniWorld.SeriesManager = (function() {
         if (sortBtn) {
             sortBtn.addEventListener('click', toggleAlphabeticalSort);
         }
+
+        // Event delegation for dynamically created edit-key buttons
+        document.addEventListener('click', function(e) {
+            const editKeyBtn = e.target.closest('.edit-key-btn');
+            if (editKeyBtn) {
+                e.preventDefault();
+                const key = editKeyBtn.dataset.key;
+                const folder = editKeyBtn.dataset.folder;
+                if (window.showEditKeyModal) {
+                    window.showEditKeyModal(key, folder);
+                }
+            }
+
+            const editMetadataBtn = e.target.closest('.edit-metadata-btn');
+            if (editMetadataBtn) {
+                e.preventDefault();
+                const key = editMetadataBtn.dataset.key;
+                const name = editMetadataBtn.dataset.name;
+                const tmdbId = editMetadataBtn.dataset.tmdbId || null;
+                const tvdbId = editMetadataBtn.dataset.tvdbId || null;
+                if (window.showEditMetadataModal) {
+                    window.showEditMetadataModal(key, name, tmdbId, tvdbId);
+                }
+            }
+        });
     }
 
     /**
@@ -343,7 +368,8 @@ AniWorld.SeriesManager = (function() {
         const canBeSelected = hasMissingEpisodes;
         const hasNfo = serie.has_nfo || false;
         const isLoading = serie.loading_status && serie.loading_status !== 'completed' && serie.loading_status !== 'failed';
-        
+        const hasKeyError = serie.loading_error && serie.loading_error.includes('key cannot be None or empty');
+
         // Debug logging for troubleshooting
         if (serie.key === 'so-im-a-spider-so-what') {
             console.log('[createSerieCard] Spider series:', {
@@ -356,6 +382,12 @@ AniWorld.SeriesManager = (function() {
             });
         }
 
+        const editKeyBtn = hasKeyError
+            ? '<button class="btn btn-icon edit-key-btn" title="Fix key error" data-key="' + serie.key + '" data-folder="' + serie.folder + '"><i class="fas fa-key"></i></button>'
+            : '';
+
+        const editMetadataBtn = '<button class="btn btn-icon edit-metadata-btn" title="Edit Metadata IDs" data-key="' + serie.key + '" data-name="' + AniWorld.UI.escapeHtml(serie.name) + '" data-tmdb-id="' + (serie.tmdb_id || '') + '" data-tvdb-id="' + (serie.tvdb_id || '') + '"><i class="fas fa-database"></i></button>';
+
         return '<div class="series-card ' + (isSelected ? 'selected' : '') + ' ' +
             (hasMissingEpisodes ? 'has-missing' : 'complete') + ' ' +
             (isLoading ? 'loading' : '') + '" ' +
@@ -368,9 +400,12 @@ AniWorld.SeriesManager = (function() {
             '<div class="series-folder">' + AniWorld.UI.escapeHtml(serie.folder) + '</div>' +
             '</div>' +
             '<div class="series-status">' +
+            (hasKeyError ? '<i class="fas fa-exclamation-triangle key-error-badge" title="Key error: ' + serie.loading_error + '"></i>' : '') +
             (hasMissingEpisodes ? '' : '<i class="fas fa-check-circle status-complete" title="Complete"></i>') +
             (hasNfo ? '<i class="fas fa-file-alt nfo-badge nfo-exists" title="NFO metadata available"></i>' :
                 '<i class="fas fa-file-alt nfo-badge nfo-missing" title="No NFO metadata"></i>') +
+            editMetadataBtn +
+            editKeyBtn +
             '</div>' +
             '</div>' +
             '<div class="series-stats">' +