@

Phase 1: Modul-System formalisiert (IModule + ModuleRegistry)

- Core/Modules/IModule.cs: Vertrag (Key, DisplayName, Description, Version,
  RegisterServices, InitializeAsync, GetWorkers, CreateWindow)
- Core/Modules/ModuleRegistry.cs
- CongressTradingModule auf IModule umgestellt (instanzbasiert, Platzhalter-Fenster)
- Program.cs iteriert ueber IModule[] + Registry; Form1 initialisiert Module ueber Registry
- Testbarkeit: WorkerBase DB-Log-Seam (virtuell); CapitolTradesScraper.ParseTradesFromHtml
  extrahiert (offline gegen ct_raw.html testbar)
- Tests: ModuleRegistry, CongressTradingModule, WorkerBase, CapitolTradesScraper -> 15/15 gruen

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
@

Core/Workers/WorkerBase.cs

@@ -126,9 +126,9 @@ public abstract class WorkerBase : IWorker
 
         try
         {
-            logId = await Db.BeginWorkerLogAsync(Name, Module);
+            logId = await BeginRunLogAsync();
             await ExecuteAsync(ct);
-            await Db.EndWorkerLogAsync(logId, true);
+            await EndRunLogAsync(logId, true);
 
             Info.LastRuntime = DateTime.Now;
             Info.Status      = WorkerStatus.Idle;
@@ -137,20 +137,30 @@ public abstract class WorkerBase : IWorker
         catch (OperationCanceledException)
         {
             if (logId > 0)
-                await Db.EndWorkerLogAsync(logId, false, "Abgebrochen");
+                await EndRunLogAsync(logId, false, "Abgebrochen");
             Info.Status = WorkerStatus.Stopped;
             Info.Info   = "Abgebrochen";
         }
         catch (Exception ex)
         {
             if (logId > 0)
-                await Db.EndWorkerLogAsync(logId, false, ex.Message);
+                await EndRunLogAsync(logId, false, ex.Message);
             Logger.Error(Module, $"Fehler in Worker {Name}: {ex.Message}", ex);
             Info.Status = WorkerStatus.Error;
             Info.Info   = $"Fehler: {ex.Message}";
         }
     }
 
+    // ─── DB-Log-Seam (überschreibbar für Unit-Tests) ──────────────────────────
+
+    /// <summary>Legt den Worker-Log-Eintrag an. Kapselt den DB-Zugriff (testbar).</summary>
+    protected virtual Task<long> BeginRunLogAsync()
+        => Db.BeginWorkerLogAsync(Name, Module);
+
+    /// <summary>Schließt den Worker-Log-Eintrag ab. Kapselt den DB-Zugriff (testbar).</summary>
+    protected virtual Task EndRunLogAsync(long logId, bool success, string? message = null)
+        => Db.EndWorkerLogAsync(logId, success, message);
+
     // ─── Hilfsmethoden ────────────────────────────────────────────────────────
 
     private static string FormatInterval(TimeSpan ts)