Folder Watching Polish + Epub Fix (#1550)

* Fixed entrypoint writing bad json (from develop)

* Fixed a bug where log file could write out a crap ton of information (serializing Series object) when a db error occurs.

* Fixed an issue with scan loop where concurrency issues could occur on new series being added.

* Tweaked the logger to suppress some noisy logs when using Debug log level.

* Fixed a regression with epub parsing from v3.2 of Vers-One's release

* Fixed up folder watching to work more reliable. Validated in production.

* Code cleanup

API/Data/Repositories/SeriesRepository.cs

@@ -56,6 +56,7 @@ internal class RecentlyAddedSeries
 
 public interface ISeriesRepository
 {
+    void Add(Series series);
     void Attach(Series series);
     void Update(Series series);
     void Remove(Series series);
@@ -136,6 +137,11 @@ public class SeriesRepository : ISeriesRepository
         _mapper = mapper;
     }
 
+    public void Add(Series series)
+    {
+        _context.Series.Add(series);
+    }
+
     public void Attach(Series series)
     {
         _context.Series.Attach(series);