// 5. Initialize database and helpers
var dbContext = new AppDbContext(connectionString);                      // line 121 — IDisposable, never disposed

var dapperExecutor = new DapperExecutor(dbContext);
var protectedKeyProvider = new ProtectedKeyProvider(aesKeyFilePath, aesIVFilePath);
secureData = new SecureData(protectedKeyProvider);
...
}
catch (Exception ex)
{
    (scopedLogger ?? rootLogger).Error($"Servy.Restarter.exe failed to restart the service: {ex.Message}", ex);
    Environment.ExitCode = 1;
}
finally
{
    // Clean up
    secureData?.Dispose();
    scopedLogger?.Dispose();
    rootLogger.Dispose();
    Logger.Shutdown();                                                    // dbContext NOT disposed
}

protected virtual void Dispose(bool disposing)
{
    if (_disposed) return;

    if (disposing)
    {
        // Release managed resources if any are added in the future 
        // (e.g., a shared DbConnection or a CancellationSource)
    }

    _disposed = true;
}

AppDbContext? dbContext = null;
...
try
{
    ...
    // 5. Initialize database and helpers
    dbContext = new AppDbContext(connectionString);
    ...
}
catch (Exception ex) { ... }
finally
{
    secureData?.Dispose();
    scopedLogger?.Dispose();
    rootLogger.Dispose();
    dbContext?.Dispose();   // <-- add this
    Logger.Shutdown();
}