Upload thumbnails to S3

NostrStreamer/Database/Configuration/UserStreamConfiguration.cs

@@ -22,7 +22,7 @@ public class UserStreamConfiguration : IEntityTypeConfiguration<UserStream>
         builder.Property(a => a.Event)
             .IsRequired();
 
-        builder.Property(a => a.Recording);
+        builder.Property(a => a.Thumbnail);
 
         builder.Property(a => a.EdgeIp)
             .IsRequired();

NostrStreamer/Database/UserStream.cs

@@ -21,9 +21,9 @@ public class UserStream
     public string Event { get; set; } = null!;
     
     /// <summary>
-    /// Recording URL of ended stream
+    /// URL of auto-generated thumbnail
     /// </summary>
-    public string? Recording { get; set; }
+    public string? Thumbnail { get; set; }
 
     public Guid EndpointId { get; init; }
     public IngestEndpoint Endpoint { get; init; } = null!;