feat: normalize release-cardinal fields out of track into a Release entity (Phase 8 §8.0)

DeepDrftPublic.Client/Controls/AudioPlayerBar/TrackMetaLabel.razor

@@ -13,26 +13,26 @@
             </a>
             <MudText Typo="Typo.subtitle2" Class="track-meta-sep"> - </MudText>
             <MudText Typo="Typo.caption" Class="track-meta-artist text-truncate">
-                @Track.Artist
+                @Track.Release?.Artist
             </MudText>
         </div>
 
         <div class="track-meta-accents">
-            @if (!string.IsNullOrEmpty(Track.Genre))
+            @if (!string.IsNullOrEmpty(Track.Release?.Genre))
             {
                 <MudChip T="string"
                          Size="Size.Small"
                          Variant="Variant.Outlined"
                          Color="Color.Tertiary"
                          Class="deepdrft-genre-chip">
-                    @Track.Genre
+                    @Track.Release.Genre
                 </MudChip>
             }
 
-            @if (Track.ReleaseDate.HasValue)
+            @if (Track.Release?.ReleaseDate.HasValue == true)
             {
                 <MudText Typo="Typo.caption" Class="track-meta-year">
-                    @Track.ReleaseDate.Value.Year
+                    @Track.Release.ReleaseDate.Value.Year
                 </MudText>
             }
         </div>