fix: manual mapping UI and [S] tag consistency

- Fix manual mapping track selection visual feedback (use accent color + background)
- Clear all playlist caches after manual mapping (matched, ordered, items)
- Strip [S] suffix from titles/artists/albums when searching for lyrics
- Add [S] suffix to artist and album names when song has [S] for consistency
- Ensures external tracks are clearly marked across all metadata fields

All 225 tests pass.

allstarr/Controllers/AdminController.cs

@@ -645,9 +645,16 @@ public class AdminController : ControllerBase
             _logger.LogInformation("Manual mapping saved: {Playlist} - Spotify {SpotifyId} → Jellyfin {JellyfinId}", 
                 decodedName, request.SpotifyId, request.JellyfinId);
             
-            // Clear the matched tracks cache to force re-matching
-            var cacheKey = $"spotify:matched:{decodedName}";
-            await _cache.DeleteAsync(cacheKey);
+            // Clear all related caches to force rebuild
+            var matchedCacheKey = $"spotify:matched:{decodedName}";
+            var orderedCacheKey = $"spotify:matched:ordered:{decodedName}";
+            var playlistItemsKey = $"spotify:playlist:items:{decodedName}";
+            
+            await _cache.DeleteAsync(matchedCacheKey);
+            await _cache.DeleteAsync(orderedCacheKey);
+            await _cache.DeleteAsync(playlistItemsKey);
+            
+            _logger.LogInformation("Cleared playlist caches for {Playlist} to force rebuild", decodedName);
             
             return Ok(new { message = "Mapping saved successfully" });
         }

allstarr/Controllers/JellyfinController.cs

@@ -1183,12 +1183,24 @@ public class JellyfinController : ControllerBase
             return NotFound(new { error = "Song not found" });
         }
 
+        // Strip [S] suffix from title, artist, and album for lyrics search
+        // The [S] tag is added to external tracks but shouldn't be used in lyrics queries
+        var searchTitle = song.Title.Replace(" [S]", "").Trim();
+        var searchArtist = song.Artist?.Replace(" [S]", "").Trim() ?? "";
+        var searchAlbum = song.Album?.Replace(" [S]", "").Trim() ?? "";
+        var searchArtists = song.Artists.Select(a => a.Replace(" [S]", "").Trim()).ToList();
+        
+        if (searchArtists.Count == 0 && !string.IsNullOrEmpty(searchArtist))
+        {
+            searchArtists.Add(searchArtist);
+        }
+
         LyricsInfo? lyrics = null;
         
         // Try Spotify lyrics first (better synced lyrics quality)
         if (_spotifyLyricsService != null && _spotifyApiSettings.Enabled)
         {
-            _logger.LogInformation("Trying Spotify lyrics for: {Artist} - {Title}", song.Artist, song.Title);
+            _logger.LogInformation("Trying Spotify lyrics for: {Artist} - {Title}", searchArtist, searchTitle);
             
             SpotifyLyricsResult? spotifyLyrics = null;
             
@@ -1199,18 +1211,18 @@ public class JellyfinController : ControllerBase
             }
             else
             {
-                // Search by metadata
+                // Search by metadata (without [S] tags)
                 spotifyLyrics = await _spotifyLyricsService.SearchAndGetLyricsAsync(
-                    song.Title,
-                    song.Artists.Count > 0 ? song.Artists[0] : song.Artist ?? "",
-                    song.Album,
+                    searchTitle,
+                    searchArtists.Count > 0 ? searchArtists[0] : searchArtist,
+                    searchAlbum,
                     song.Duration.HasValue ? song.Duration.Value * 1000 : null);
             }
             
             if (spotifyLyrics != null && spotifyLyrics.Lines.Count > 0)
             {
                 _logger.LogInformation("Found Spotify lyrics for {Artist} - {Title} ({LineCount} lines, type: {SyncType})", 
-                    song.Artist, song.Title, spotifyLyrics.Lines.Count, spotifyLyrics.SyncType);
+                    searchArtist, searchTitle, spotifyLyrics.Lines.Count, spotifyLyrics.SyncType);
                 lyrics = _spotifyLyricsService.ToLyricsInfo(spotifyLyrics);
             }
         }
@@ -1219,15 +1231,15 @@ public class JellyfinController : ControllerBase
         if (lyrics == null)
         {
             _logger.LogInformation("Searching LRCLIB for lyrics: {Artists} - {Title}", 
-                song.Artists.Count > 0 ? string.Join(", ", song.Artists) : song.Artist, 
-                song.Title);
+                string.Join(", ", searchArtists), 
+                searchTitle);
             var lrclibService = HttpContext.RequestServices.GetService<LrclibService>();
             if (lrclibService != null)
             {
                 lyrics = await lrclibService.GetLyricsAsync(
-                    song.Title,
-                    song.Artists.Count > 0 ? song.Artists.ToArray() : new[] { song.Artist ?? "" },
-                    song.Album ?? "",
+                    searchTitle,
+                    searchArtists.ToArray(),
+                    searchAlbum,
                     song.Duration ?? 0);
             }
         }

allstarr/Services/Jellyfin/JellyfinResponseBuilder.cs

@@ -233,9 +233,29 @@ public class JellyfinResponseBuilder
     {
         // Add " [S]" suffix to external song titles (S = streaming source)
         var songTitle = song.Title;
+        var artistName = song.Artist;
+        var albumName = song.Album;
+        var artistNames = song.Artists.ToList();
+        
         if (!song.IsLocal)
         {
             songTitle = $"{song.Title} [S]";
+            
+            // Also add [S] to artist and album names for consistency
+            if (!string.IsNullOrEmpty(artistName) && !artistName.EndsWith(" [S]"))
+            {
+                artistName = $"{artistName} [S]";
+            }
+            
+            if (!string.IsNullOrEmpty(albumName) && !albumName.EndsWith(" [S]"))
+            {
+                albumName = $"{albumName} [S]";
+            }
+            
+            // Add [S] to all artist names in the list
+            artistNames = artistNames.Select(a => 
+                !string.IsNullOrEmpty(a) && !a.EndsWith(" [S]") ? $"{a} [S]" : a
+            ).ToList();
         }
         
         var item = new Dictionary<string, object?>
@@ -278,9 +298,9 @@ public class JellyfinResponseBuilder
                 ["Key"] = $"Audio-{song.Id}",
                 ["ItemId"] = song.Id
             },
-            ["Artists"] = song.Artists.Count > 0 ? song.Artists.ToArray() : new[] { song.Artist ?? "" },
-            ["ArtistItems"] = song.Artists.Count > 0 
-                ? song.Artists.Select((name, index) => new Dictionary<string, object?>
+            ["Artists"] = artistNames.Count > 0 ? artistNames.ToArray() : new[] { artistName ?? "" },
+            ["ArtistItems"] = artistNames.Count > 0 
+                ? artistNames.Select((name, index) => new Dictionary<string, object?>
                 {
                     ["Name"] = name,
                     ["Id"] = index == 0 && song.ArtistId != null 
@@ -292,18 +312,18 @@ public class JellyfinResponseBuilder
                     new Dictionary<string, object?>
                     {
                         ["Id"] = song.ArtistId ?? song.Id,
-                        ["Name"] = song.Artist ?? ""
+                        ["Name"] = artistName ?? ""
                     }
                 },
-            ["Album"] = song.Album,
+            ["Album"] = albumName,
             ["AlbumId"] = song.AlbumId ?? song.Id,
             ["AlbumPrimaryImageTag"] = song.AlbumId ?? song.Id,
-            ["AlbumArtist"] = song.AlbumArtist ?? song.Artist,
+            ["AlbumArtist"] = song.AlbumArtist ?? artistName,
             ["AlbumArtists"] = new[]
             {
                 new Dictionary<string, object?>
                 {
-                    ["Name"] = song.AlbumArtist ?? song.Artist ?? "",
+                    ["Name"] = song.AlbumArtist ?? artistName ?? "",
                     ["Id"] = song.ArtistId ?? song.Id
                 }
             },

allstarr/wwwroot/index.html

@@ -2005,10 +2005,12 @@
             // Remove selection from all tracks
             document.querySelectorAll('#map-search-results .track-item').forEach(el => {
                 el.style.border = '2px solid transparent';
+                el.style.background = '';
             });
             
             // Highlight selected track
-            element.style.border = '2px solid var(--primary)';
+            element.style.border = '2px solid var(--accent)';
+            element.style.background = 'var(--bg-tertiary)';
             
             // Store selected ID and enable save button
             document.getElementById('map-selected-jellyfin-id').value = jellyfinId;