Adds Decorator, wip

Core/Database/DatabaseScope.cs

@@ -1,4 +1,5 @@
 using System.Data;
+using System.Diagnostics;
 using Microsoft.ApplicationInsights.DataContracts;
 using Microsoft.ApplicationInsights.Extensibility;
 
@@ -6,19 +7,24 @@ namespace PlanTempus.Core.Database;
 
 public class DatabaseScope : IDisposable
 {
-    private readonly IOperationHolder<DependencyTelemetry> _operation;
+    internal readonly IOperationHolder<DependencyTelemetry> _operation;
+    private readonly Stopwatch _stopwatch;
 
     public DatabaseScope(IDbConnection connection, IOperationHolder<DependencyTelemetry> operation)
     {
         Connection = connection;
         _operation = operation;
         _operation.Telemetry.Success = true;
+        _stopwatch = Stopwatch.StartNew();
     }
 
     public IDbConnection Connection { get; }
 
     public void Dispose()
     {
+        _stopwatch.Stop();
+        _operation.Telemetry.Duration = _stopwatch.Elapsed;
+
         _operation.Dispose();
         Connection.Dispose();
     }