Added multiple qol imporvements

SpotiParty.Web/Services/CleanupService.cs

@@ -0,0 +1,27 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace SpotiParty.Web.Services;
+
+public class CleanupService(IServiceProvider services, ILogger<CleanupService> logger) : BackgroundService {
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken) {
+        while (!stoppingToken.IsCancellationRequested) {
+            await using (var scope = services.CreateAsyncScope()) {
+                var context = scope.ServiceProvider.GetRequiredService<DatabaseContext>();
+                
+                var now = DateTime.Now;
+                var oldEvents = await context.Events
+                    .Where(e => e.End < now)
+                    .ToArrayAsync(stoppingToken);
+            
+                context.Events.RemoveRange(oldEvents);
+                await context.SaveChangesAsync(stoppingToken);
+            
+                if (oldEvents.Length > 0)
+                    logger.LogInformation("Deleted {count} old events", oldEvents.Length);
+            }
+
+            var nextRun = DateTime.Today.AddDays(1).AddHours(3) - DateTime.Now;
+            await Task.Delay(nextRun, stoppingToken);
+        }
+    }
+}