@

R3 Slice 3: CongressTrading-Modul + Worker-Log + core_settings auf EF Core

- Modul: CongressTradingDbContext (ct_congressMember/ct_trade) + Design-Time-Factory;
  CongressRepository von Dapper auf EF; CongressTrade.DetailsFetched ergaenzt; Dapper entfernt
- Core: CoreSettingsService (core_settings via EF); WorkerBase-Log auf EF (core_worker_log);
  7 Worker-Ctors DatabaseService -> IDbContextFactory<CoreDbContext>
- CoreMigrations + CongressMigrations (Dapper) entfernt; core_-Schema nun rein EF
- EF-Migration InitialCongressTrading; AddCorePersistence-Fallback fuer leeren Connection-String
  (App startet ohne DB); Connection aus appsettings.Local.json (gitignored)
- Tests: +4 CongressRepository (EF-InMemory) -> 39/39 gruen; Build + smoke-ui + App-Start ok

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

src/IBKRTrader.Core/Workers/BuiltIn/BackupWorker.cs

@@ -1,3 +1,5 @@
+using IBKRTrader.Core.Persistence.Ef;
+using Microsoft.EntityFrameworkCore;
 using IBKRTrader.Core.Database;
 using IBKRTrader.Core.Logging;
 using IBKRTrader.Core.Settings;
@@ -21,7 +23,7 @@ public class BackupWorker : WorkerBase
     protected override TimeSpan? Interval =>
         TimeSpan.FromMinutes(_settings.Settings.WorkerSettings.BackupWorker.IntervalMinutes);
 
-    public BackupWorker(LoggingService logger, DatabaseService db, SettingsService settings)
+    public BackupWorker(LoggingService logger, IDbContextFactory<CoreDbContext> db, SettingsService settings)
         : base(logger, db)
     {
         _settings = settings;

src/IBKRTrader.Core/Workers/BuiltIn/IBKRInstrumentSyncWorker.cs

@@ -1,3 +1,5 @@
+using IBKRTrader.Core.Persistence.Ef;
+using Microsoft.EntityFrameworkCore;
 using IBKRTrader.Core.Database;
 using IBKRTrader.Core.IBKR;
 using IBKRTrader.Core.Logging;
@@ -22,7 +24,7 @@ public class IBKRInstrumentSyncWorker : WorkerBase
     private readonly IBKRMarketDataRepository _repo;
 
     public IBKRInstrumentSyncWorker(
-        LoggingService logger, DatabaseService db,
+        LoggingService logger, IDbContextFactory<CoreDbContext> db,
         SettingsService settings, IBKRGatewayService gateway,
         IBKRMarketDataRepository repo)
         : base(logger, db)

src/IBKRTrader.Core/Workers/BuiltIn/IBKRPriceHistoryWorker.cs

@@ -1,3 +1,5 @@
+using IBKRTrader.Core.Persistence.Ef;
+using Microsoft.EntityFrameworkCore;
 using IBKRTrader.Core.Database;
 using IBKRTrader.Core.IBKR;
 using IBKRTrader.Core.Logging;
@@ -29,7 +31,7 @@ public class IBKRPriceHistoryWorker : WorkerBase
     private readonly IBKRMarketDataRepository _repo;
 
     public IBKRPriceHistoryWorker(
-        LoggingService logger, DatabaseService db,
+        LoggingService logger, IDbContextFactory<CoreDbContext> db,
         SettingsService settings, IBKRGatewayService gateway,
         IBKRMarketDataRepository repo)
         : base(logger, db)

src/IBKRTrader.Core/Workers/BuiltIn/WebApiService.cs

@@ -1,3 +1,5 @@
+using IBKRTrader.Core.Persistence.Ef;
+using Microsoft.EntityFrameworkCore;
 using System.Net;
 using System.Text;
 using System.Text.Json;
@@ -27,7 +29,7 @@ public class WebApiService : WorkerBase
 
     protected override TimeSpan? Interval => null;
 
-    public WebApiService(LoggingService logger, DatabaseService db, SettingsService settings)
+    public WebApiService(LoggingService logger, IDbContextFactory<CoreDbContext> db, SettingsService settings)
         : base(logger, db)
     {
         _settings = settings;

src/IBKRTrader.Core/Workers/BuiltIn/WebserverService.cs

@@ -1,3 +1,5 @@
+using IBKRTrader.Core.Persistence.Ef;
+using Microsoft.EntityFrameworkCore;
 using System.Net;
 using System.Text;
 using IBKRTrader.Core.Database;
@@ -22,7 +24,7 @@ public class WebserverService : WorkerBase
 
     protected override TimeSpan? Interval => null; // Service = permanent
 
-    public WebserverService(LoggingService logger, DatabaseService db, SettingsService settings)
+    public WebserverService(LoggingService logger, IDbContextFactory<CoreDbContext> db, SettingsService settings)
         : base(logger, db)
     {
         _settings = settings;

src/IBKRTrader.Core/Workers/WorkerBase.cs

@@ -1,5 +1,7 @@
-using IBKRTrader.Core.Database;
 using IBKRTrader.Core.Logging;
+using IBKRTrader.Core.Persistence.Ef;
+using IBKRTrader.Core.Persistence.Entities;
+using Microsoft.EntityFrameworkCore;
 
 namespace IBKRTrader.Core.Workers;
 
@@ -26,8 +28,8 @@ public abstract class WorkerBase : IWorker
 
     // ─── Infrastruktur ────────────────────────────────────────────────────────
 
-    protected readonly LoggingService  Logger;
-    protected readonly DatabaseService Db;
+    protected readonly LoggingService Logger;
+    private readonly IDbContextFactory<CoreDbContext> _dbf;
 
     public WorkerInfo Info { get; } = new();
 
@@ -35,10 +37,10 @@ public abstract class WorkerBase : IWorker
     private Task?                    _runLoop;
     private readonly SemaphoreSlim   _triggerSemaphore = new(0, 1);
 
-    protected WorkerBase(LoggingService logger, DatabaseService db)
+    protected WorkerBase(LoggingService logger, IDbContextFactory<CoreDbContext> dbf)
     {
         Logger = logger;
-        Db     = db;
+        _dbf   = dbf;
 
         Info.WorkerName = Name;
         Info.Module     = Module;
@@ -153,13 +155,33 @@ public abstract class WorkerBase : IWorker
 
     // ─── 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>Legt den Worker-Log-Eintrag an (core_worker_log via EF). Kapselt den DB-Zugriff (testbar).</summary>
+    protected virtual async Task<long> BeginRunLogAsync()
+    {
+        await using var db = await _dbf.CreateDbContextAsync();
+        var log = new CoreWorkerLog
+        {
+            WorkerName = Name,
+            Module     = Module,
+            StartedAt  = DateTime.UtcNow,
+            Status     = "Running"
+        };
+        db.WorkerLog.Add(log);
+        await db.SaveChangesAsync();
+        return log.Id;
+    }
 
     /// <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);
+    protected virtual async Task EndRunLogAsync(long logId, bool success, string? message = null)
+    {
+        await using var db = await _dbf.CreateDbContextAsync();
+        var log = await db.WorkerLog.FindAsync(logId);
+        if (log is null) return;
+        log.FinishedAt = DateTime.UtcNow;
+        log.Status     = success ? "Success" : "Error";
+        log.Message    = message;
+        await db.SaveChangesAsync();
+    }
 
     // ─── Hilfsmethoden ────────────────────────────────────────────────────────