add basic logging ui (#14)

ErsatzTV.Core/Domain/LogEntry.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace ErsatzTV.Core.Domain
+{
+    public record LogEntry(
+        int Id,
+        DateTime Timestamp,
+        string Level,
+        string Exception,
+        string RenderedMessage,
+        string Properties);
+}

ErsatzTV.Core/FileSystemLayout.cs

@@ -13,6 +13,8 @@ namespace ErsatzTV.Core
 
         public static readonly string DatabasePath = Path.Combine(AppDataFolder, "ersatztv.sqlite3");
 
+        public static readonly string LogDatabasePath = Path.Combine(AppDataFolder, "logs.sqlite3");
+
         public static readonly string ImageCacheFolder = Path.Combine(AppDataFolder, "cache", "images");
 
         public static readonly string PlexSecretsPath = Path.Combine(AppDataFolder, "plex-secrets.json");

ErsatzTV.Core/Interfaces/Repositories/ILogRepository.cs

@@ -0,0 +1,11 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using ErsatzTV.Core.Domain;
+
+namespace ErsatzTV.Core.Interfaces.Repositories
+{
+    public interface ILogRepository
+    {
+        public Task<List<LogEntry>> GetRecentLogEntries();
+    }
+}