Checkout‑Registrierung validiert jetzt die E‑Mail‑Länge, und die Checkout‑Flows sind Paddle‑only: Stripe‑Endpoints/

Services/Helpers sind entfernt, API/Frontend angepasst, Tests auf Paddle umgestellt. Außerdem wurde die CSP gestrafft
  und Stripe‑Texte in den Abandoned‑Checkout‑Mails ersetzt.

resources/js/admin/mobile/EventFormPage.tsx

@@ -8,9 +8,11 @@ import { Switch } from '@tamagui/switch';
 import { MobileShell } from './components/MobileShell';
 import { MobileCard, CTAButton } from './components/Primitives';
 import { createEvent, getEvent, updateEvent, getEventTypes, TenantEvent, TenantEventType } from '../api';
+import { resolveEventSlugAfterUpdate } from './eventFormNavigation';
 import { adminPath } from '../constants';
 import { isAuthError } from '../auth/tokens';
-import { getApiErrorMessage } from '../lib/apiError';
+import { getApiValidationMessage } from '../lib/apiError';
+import toast from 'react-hot-toast';
 
 type FormState = {
   name: string;
@@ -99,7 +101,7 @@ export default function MobileEventFormPage() {
     setError(null);
       try {
         if (isEdit && slug) {
-          await updateEvent(slug, {
+          const updated = await updateEvent(slug, {
             name: form.name,
             event_date: form.date || undefined,
             event_type_id: form.eventTypeId ?? undefined,
@@ -110,7 +112,8 @@ export default function MobileEventFormPage() {
               engagement_mode: form.tasksEnabled ? 'tasks' : 'photo_only',
             },
           });
-          navigate(adminPath(`/mobile/events/${slug}`));
+          const nextSlug = resolveEventSlugAfterUpdate(slug, updated);
+          navigate(adminPath(`/mobile/events/${nextSlug}`));
         } else {
           const payload = {
             name: form.name || t('eventForm.fields.name.fallback', 'Event'),
@@ -129,7 +132,9 @@ export default function MobileEventFormPage() {
       }
     } catch (err) {
       if (!isAuthError(err)) {
-        setError(getApiErrorMessage(err, t('eventForm.errors.saveFailed', 'Event could not be saved.')));
+        const message = getApiValidationMessage(err, t('eventForm.errors.saveFailed', 'Event could not be saved.'));
+        setError(message);
+        toast.error(message);
       }
     } finally {
       setSaving(false);
@@ -359,6 +364,7 @@ function renderName(name: TenantEvent['name']): string {
   return '';
 }
 
+
 function toDateTimeLocal(value?: string | null): string {
   if (!value) return '';
   const parsed = new Date(value);

resources/js/admin/mobile/__tests__/eventFormNavigation.test.ts

@@ -0,0 +1,17 @@
+import { describe, expect, it } from 'vitest';
+import { resolveEventSlugAfterUpdate } from '../eventFormNavigation';
+import type { TenantEvent } from '../../api';
+
+describe('resolveEventSlugAfterUpdate', () => {
+  it('returns the updated slug when it changes', () => {
+    const updated = { slug: 'updated-slug' } as TenantEvent;
+
+    expect(resolveEventSlugAfterUpdate('original-slug', updated)).toBe('updated-slug');
+  });
+
+  it('keeps the current slug when it is unchanged', () => {
+    const updated = { slug: 'original-slug' } as TenantEvent;
+
+    expect(resolveEventSlugAfterUpdate('original-slug', updated)).toBe('original-slug');
+  });
+});

resources/js/admin/mobile/eventFormNavigation.ts

@@ -0,0 +1,9 @@
+import type { TenantEvent } from '../api';
+
+export function resolveEventSlugAfterUpdate(currentSlug: string, updated: TenantEvent): string {
+  if (updated.slug && updated.slug !== currentSlug) {
+    return updated.slug;
+  }
+
+  return currentSlug;
+}