PR U-7: success toasts after mutations

Add IToastService.ShowToast(ToastIntent.Success, ...) after each
successful save/delete across Accounts, BookingRules, BookingTexts,
Classes, and Transactions. Toasts fire after the list re-fetch so
the confirmation is visible even if the edited item paginated out of
view.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Schaad.Accounting.UI/Components/Pages/Accounts.razor.cs

@@ -14,6 +14,9 @@ public partial class Accounts : ComponentBase
     [Inject]
     private IDialogService dialogService { get; set; } = null!;
 
+    [Inject]
+    private IToastService toastService { get; set; } = null!;
+
     private IQueryable<Account>? accountQueryable;
 
     protected override async Task OnInitializedAsync()
@@ -37,6 +40,7 @@ public partial class Accounts : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             accountQueryable = (await accountRepository.GetAccountListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Konto gespeichert", 3000);
         }
     }
 
@@ -55,6 +59,7 @@ public partial class Accounts : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             accountQueryable = (await accountRepository.GetAccountListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Konto gespeichert", 3000);
         }
     }
 
@@ -67,6 +72,7 @@ public partial class Accounts : ComponentBase
         {
             await accountRepository.DeleteAccountAsync(id);
             accountQueryable = (await accountRepository.GetAccountListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Konto gelöscht", 3000);
         }
     }
 }

Schaad.Accounting.UI/Components/Pages/BookingRules.razor.cs

@@ -18,6 +18,9 @@ public partial class BookingRules : ComponentBase
     [Inject]
     private IDialogService dialogService { get; set; } = null!;
 
+    [Inject]
+    private IToastService toastService { get; set; } = null!;
+
     private IQueryable<BookingRuleDataset>? bookingRulesQueryable;
 
     protected override async Task OnInitializedAsync()
@@ -41,6 +44,7 @@ public partial class BookingRules : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             bookingRulesQueryable = (await viewService.GetBookingRuleViewListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Buchungsregel gespeichert", 3000);
         }
     }
 
@@ -59,6 +63,7 @@ public partial class BookingRules : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             bookingRulesQueryable = (await viewService.GetBookingRuleViewListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Buchungsregel gespeichert", 3000);
         }
     }
 
@@ -71,6 +76,7 @@ public partial class BookingRules : ComponentBase
         {
             await bookingRuleRepository.DeleteBookingRuleAsync(id);
             bookingRulesQueryable = (await viewService.GetBookingRuleViewListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Buchungsregel gelöscht", 3000);
         }
     }
 }

Schaad.Accounting.UI/Components/Pages/BookingTexts.razor.cs

@@ -14,6 +14,9 @@ public partial class BookingTexts : ComponentBase
     [Inject]
     private IDialogService dialogService { get; set; } = null!;
 
+    [Inject]
+    private IToastService toastService { get; set; } = null!;
+
     private IQueryable<BookingText>? bookingTextQueryable;
 
     protected override async Task OnInitializedAsync()
@@ -37,6 +40,7 @@ public partial class BookingTexts : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             bookingTextQueryable = (await bookingTextRepository.GetBookingTextListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Buchungstext gespeichert", 3000);
         }
     }
 
@@ -55,6 +59,7 @@ public partial class BookingTexts : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             bookingTextQueryable = (await bookingTextRepository.GetBookingTextListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Buchungstext gespeichert", 3000);
         }
     }
 
@@ -67,6 +72,7 @@ public partial class BookingTexts : ComponentBase
         {
             await bookingTextRepository.DeleteBookingTextAsync(id);
             bookingTextQueryable = (await bookingTextRepository.GetBookingTextListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Buchungstext gelöscht", 3000);
         }
     }
 }

Schaad.Accounting.UI/Components/Pages/Classes.razor.cs

@@ -14,6 +14,9 @@ public partial class Classes : ComponentBase
     [Inject]
     private IDialogService dialogService { get; set; } = null!;
 
+    [Inject]
+    private IToastService toastService { get; set; } = null!;
+
     private IQueryable<SubClass>? subclassQueryable;
 
     protected override async Task OnInitializedAsync()
@@ -37,6 +40,7 @@ public partial class Classes : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             subclassQueryable = (await subclassRepository.GetSubClassListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Klasse gespeichert", 3000);
         }
     }
 
@@ -55,6 +59,7 @@ public partial class Classes : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             subclassQueryable = (await subclassRepository.GetSubClassListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Klasse gespeichert", 3000);
         }
     }
 
@@ -67,6 +72,7 @@ public partial class Classes : ComponentBase
         {
             await subclassRepository.DeleteSubClassAsync(id);
             subclassQueryable = (await subclassRepository.GetSubClassListAsync()).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Klasse gelöscht", 3000);
         }
     }
 }

Schaad.Accounting.UI/Components/Pages/Transactions.razor.cs

@@ -18,6 +18,9 @@ public partial class Transactions : ComponentBase
     [Inject]
     private IDialogService dialogService { get; set; } = null!;
 
+    [Inject]
+    private IToastService toastService { get; set; } = null!;
+
     private IReadOnlyList<AccountDataset> accounts = [];
 
     private IQueryable<TransactionDataset>? transactionList;
@@ -69,6 +72,7 @@ public partial class Transactions : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             transactionList = (await viewService.GetTransactionViewListAsync(selectedAccountId)).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Transaktion gespeichert", 3000);
         }
     }
 
@@ -87,6 +91,7 @@ public partial class Transactions : ComponentBase
         if (!result.Cancelled && result.Data != null)
         {
             transactionList = (await viewService.GetTransactionViewListAsync(selectedAccountId)).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Transaktion gespeichert", 3000);
         }
     }
 
@@ -99,6 +104,7 @@ public partial class Transactions : ComponentBase
         {
             await transactionRepository.DeleteTransactionAsync(id);
             transactionList = (await viewService.GetTransactionViewListAsync(selectedAccountId)).AsQueryable();
+            toastService.ShowToast(ToastIntent.Success, "Transaktion gelöscht", 3000);
         }
     }
 }