Updated checkout to wait for backend confirmation before advancing, added a “Processing payment…” state with retry/ refresh fallback, and now use Paddle totals/currency for purchase records + confirmation emails (with new email translations).

app/Http/Requests/Checkout/CheckoutLoginRequest.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Http\Requests\Checkout;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class CheckoutLoginRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'identifier' => ['required', 'string'],
+            'password' => ['required', 'string'],
+            'remember' => ['nullable', 'boolean'],
+            'locale' => ['nullable', 'string', 'max:10'],
+            'package_id' => ['nullable', 'exists:packages,id'],
+        ];
+    }
+
+    /**
+     * Get custom validation messages.
+     */
+    public function messages(): array
+    {
+        return [
+            'identifier.required' => 'Bitte gib deine E-Mail-Adresse oder deinen Benutzernamen an.',
+            'password.required' => 'Bitte gib dein Passwort an.',
+            'package_id.exists' => 'Das ausgewählte Paket ist ungültig.',
+        ];
+    }
+}