added club-settings:

Neue Datei: src/Koogle.Web/Components/Pages/Settings.razor
  - Route /settings mit ClubAdmin-Policy
  - Zeigt Name, LoginName, Kostenberechnung
  - "Bearbeiten" Button öffnet bestehenden ClubEditDialog
  - Kein Löschen, keine Neuanlage

  Geändert: src/Koogle.Web/Components/Layout/NavMenu.razor
  - Neuer Link "Vereins-Einstellungen" in "Stammdaten"-Gruppe (Icon: Tune)

src/Koogle.Web/Components/Layout/NavMenu.razor

@@ -44,7 +44,7 @@
                 <MudNavLink Href="/expensetriggers"
                             Match="NavLinkMatch.Prefix"
                             Icon="@Icons.Material.Filled.FlashOn">
-                    Auslöser
+                    Ausl<EFBFBD>ser
                 </MudNavLink>
 
                 <MudNavLink Href="/admin/gifs"
@@ -52,7 +52,13 @@
                             Icon="@Icons.Material.Filled.VideoFile">
                     Gifs
                 </MudNavLink>
-                
+
+                <MudNavLink Href="/settings"
+                            Match="NavLinkMatch.All"
+                            Icon="@Icons.Material.Filled.Tune">
+                    Vereins-Einstellungen
+                </MudNavLink>
+
             </MudNavGroup>
         }
     }
@@ -79,7 +85,7 @@
                 <MudNavLink Href="/admin/triggers"
                             Match="NavLinkMatch.Prefix"
                             Icon="@Icons.Material.Filled.FlashOn">
-                    Auslöser
+                    Ausl<EFBFBD>ser
                 </MudNavLink>
             }
         </MudNavGroup>

src/Koogle.Web/Components/Pages/Settings.razor

@@ -0,0 +1,137 @@
+@page "/settings"
+@attribute [Authorize(Policy = "ClubAdmin")]
+
+@inherits Fluxor.Blazor.Web.Components.FluxorComponent
+
+@using Fluxor
+@using Koogle.Application.DTOs
+@using Koogle.Application.Interfaces
+@using Koogle.Domain.Enums
+@using Koogle.Web.Store.ClubState
+@using Koogle.Web.Components.Pages.Admin
+@using Microsoft.AspNetCore.Authorization
+
+@inject IClubService ClubService
+@inject ICurrentClubContext CurrentClubContext
+@inject IState<ClubState> ClubState
+@inject IDispatcher Dispatcher
+@inject ISnackbar Snackbar
+@inject IDialogService DialogService
+
+<PageTitle>Vereins-Einstellungen</PageTitle>
+
+<MudText Typo="Typo.h4" Class="mb-4">Vereins-Einstellungen</MudText>
+
+@if (ClubState.Value.Error is not null)
+{
+    <MudAlert Severity="Severity.Error" Class="mb-4" ShowCloseIcon="true" CloseIconClicked="ClearError">
+        @ClubState.Value.Error
+    </MudAlert>
+}
+
+@if (_isLoading)
+{
+    <MudProgressCircular Indeterminate="true" />
+}
+else if (_club is null)
+{
+    <MudAlert Severity="Severity.Warning">Kein Club ausgewählt</MudAlert>
+}
+else
+{
+    <MudCard>
+        <MudCardContent>
+            <MudGrid>
+                <MudItem xs="12" sm="6">
+                    <MudText Typo="Typo.caption" Color="Color.Secondary">Name</MudText>
+                    <MudText Typo="Typo.body1">@_club.Name</MudText>
+                </MudItem>
+                <MudItem xs="12" sm="6">
+                    <MudText Typo="Typo.caption" Color="Color.Secondary">Login-Name</MudText>
+                    <MudText Typo="Typo.body1">@_club.LoginName</MudText>
+                </MudItem>
+                <MudItem xs="12">
+                    <MudText Typo="Typo.caption" Color="Color.Secondary">Kostenberechnung</MudText>
+                    <MudChip T="string" Size="Size.Small" Color="GetCalculationColor(_club.ExpenseCalculation)">
+                        @GetCalculationLabel(_club.ExpenseCalculation)
+                    </MudChip>
+                </MudItem>
+            </MudGrid>
+        </MudCardContent>
+        <MudCardActions>
+            <MudButton Variant="Variant.Filled" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Edit"
+                       OnClick="OpenEditDialog">
+                Bearbeiten
+            </MudButton>
+        </MudCardActions>
+    </MudCard>
+}
+
+@code {
+    private ClubDto? _club;
+    private bool _isLoading = true;
+
+    protected override async Task OnInitializedAsync()
+    {
+        await base.OnInitializedAsync();
+        await LoadClubAsync();
+    }
+
+    private async Task LoadClubAsync()
+    {
+        _isLoading = true;
+        try
+        {
+            var clubId = CurrentClubContext.ClubId;
+            if (clubId != Guid.Empty)
+            {
+                _club = await ClubService.GetByIdAsync(clubId);
+            }
+        }
+        finally
+        {
+            _isLoading = false;
+        }
+    }
+
+    private void ClearError()
+    {
+        Dispatcher.Dispatch(new ClearClubErrorAction());
+    }
+
+    private static string GetCalculationLabel(ExpenseCalculation calculation) => calculation switch
+    {
+        ExpenseCalculation.None => "Keine",
+        ExpenseCalculation.Average => "Durchschnitt",
+        ExpenseCalculation.Maximum => "Maximum",
+        _ => calculation.ToString()
+    };
+
+    private static Color GetCalculationColor(ExpenseCalculation calculation) => calculation switch
+    {
+        ExpenseCalculation.None => Color.Default,
+        ExpenseCalculation.Average => Color.Info,
+        ExpenseCalculation.Maximum => Color.Warning,
+        _ => Color.Default
+    };
+
+    private async Task OpenEditDialog()
+    {
+        if (_club is null) return;
+
+        var parameters = new DialogParameters
+        {
+            { "Club", _club }
+        };
+
+        var dialog = await DialogService.ShowAsync<ClubEditDialog>("Vereins-Einstellungen bearbeiten", parameters);
+        var result = await dialog.Result;
+
+        if (result != null && !result.Canceled && result.Data is UpdateClubDto dto)
+        {
+            Dispatcher.Dispatch(new UpdateClubAction(dto));
+            Snackbar.Add("Einstellungen werden gespeichert...", Severity.Info);
+            await LoadClubAsync();
+        }
+    }
+}