explicit dispose and clean on some objects

code/Executable/DependencyInjection/MainDI.cs

@@ -17,7 +17,9 @@ public static class MainDI
             .AddLogging(builder => builder.ClearProviders().AddConsole())
             .AddHttpClients(configuration)
             .AddConfiguration(configuration)
-            .AddMemoryCache()
+            .AddMemoryCache(options => {
+                options.ExpirationScanFrequency = TimeSpan.FromMinutes(1);
+            })
             .AddServices()
             .AddQuartzServices(configuration)
             .AddNotifications(configuration)

code/Infrastructure/Verticals/ContentBlocker/BlocklistProvider.cs

@@ -43,7 +43,7 @@ public sealed class BlocklistProvider
     {
         if (_initialized)
         {
-            _logger.LogDebug("blocklists already loaded");
+            _logger.LogTrace("blocklists already loaded");
             return;
         }
         

code/Infrastructure/Verticals/Files/UnixHardLinkFileService.cs

@@ -4,7 +4,7 @@ using Mono.Unix.Native;
 
 namespace Infrastructure.Verticals.Files;
 
-public class UnixHardLinkFileService : IHardLinkFileService
+public class UnixHardLinkFileService : IHardLinkFileService, IDisposable
 {
     private readonly ILogger<UnixHardLinkFileService> _logger;
     private readonly ConcurrentDictionary<ulong, int> _inodeCounts = new();
@@ -83,4 +83,9 @@ public class UnixHardLinkFileService : IHardLinkFileService
             throw;
         }
     }
+
+    public void Dispose()
+    {
+        _inodeCounts.Clear();
+    }
 }

code/Infrastructure/Verticals/Files/WindowsHardLinkFileService.cs

@@ -5,7 +5,7 @@ using Microsoft.Win32.SafeHandles;
 
 namespace Infrastructure.Verticals.Files;
 
-public class WindowsHardLinkFileService : IHardLinkFileService
+public class WindowsHardLinkFileService : IHardLinkFileService, IDisposable
 {
     private readonly ILogger<WindowsHardLinkFileService> _logger;
     private readonly ConcurrentDictionary<ulong, int> _fileIndexCounts = new();
@@ -110,4 +110,9 @@ public class WindowsHardLinkFileService : IHardLinkFileService
         public uint FileIndexHigh;
         public uint FileIndexLow;
     }
+    
+    public void Dispose()
+    {
+        _fileIndexCounts.Clear();
+    }
 }