feat(115): wystawianie faktury z zamowienia (lokalne + delegowane Fakturownia)

Phase 115 complete (vertical slice "zamowienie z NIP -> faktura PDF"):
- Task 1: InvoiceRepository + InvoiceService (dual-flow orchestrator) +
  InvoiceIssueException + FakturowniaApiClient::createInvoice + buildPdfUrl
- Task 2: InvoiceController + OrdersController::toggleInvoiceRequested +
  OrdersRepository::setInvoiceRequested + auto-import invoice_requested z
  Allegro (invoice.required) i shopPRO (5-key flexible parser) + show.php
  (toggle w zakladce Platnosci + warunkowy przycisk Wystaw fakture)
- Task 3: Lista wystawionych /settings/accounting/invoices/issued z filtrami
  + invoice_preview + invoice_pdf Dompdf template + hub link
- Task 3b (dodany): NIP lookup przez MF Biala Lista (publiczne API, bez
  rejestracji) — MfWhitelistApiClient w src/Core/Http/ + /api/nip/lookup +
  przycisk "Pobierz z GUS" w formularzu

Auto-fixes podczas smoke testu (5):
- GUS endpoint Fakturowni nie istnial (HTML 404 -> "json is not valid");
  switch na MF Biala Liste
- PHP 8.5 curl_close() deprecation wycieka HTML przed JSON; usuniete z
  MfWhitelistApiClient i FakturowniaApiClient (3 miejsca)
- Fakturownia 422 payment_to_kind_days (nieistniejace pole) -> usuniete
- Generic "error" w 422 -> parser plaskuje errors: {pole: [...]} +
  error_log z 1000 znakow raw body
- Fakturownia security odrzuca seller_*/department_id jako "create new
  department"; usuniete z payloadu (Fakturownia uzywa danych konta)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

public/assets/js/modules/invoice-requested-toggle.js

@@ -0,0 +1,62 @@
+(function () {
+    'use strict';
+
+    function init() {
+        var checkbox = document.querySelector('[data-invoice-requested-toggle]');
+        if (!checkbox || checkbox.dataset.bound === '1') {
+            return;
+        }
+        checkbox.dataset.bound = '1';
+
+        var orderId = checkbox.dataset.orderId || '';
+        var token = checkbox.dataset.csrfToken || '';
+        var buttonWrap = document.querySelector('[data-invoice-button-wrap]');
+
+        checkbox.addEventListener('change', function () {
+            var newValue = checkbox.checked ? 1 : 0;
+            checkbox.disabled = true;
+
+            var formData = new FormData();
+            formData.append('_token', token);
+            formData.append('invoice_requested', String(newValue));
+
+            fetch('/orders/' + encodeURIComponent(orderId) + '/invoice-requested/toggle', {
+                method: 'POST',
+                headers: { 'X-Requested-With': 'XMLHttpRequest' },
+                body: formData,
+                credentials: 'same-origin'
+            })
+                .then(function (resp) {
+                    if (!resp.ok) {
+                        throw new Error('HTTP ' + resp.status);
+                    }
+                    return resp.json();
+                })
+                .then(function (data) {
+                    if (!data || !data.success) {
+                        throw new Error(data && data.error ? data.error : 'Blad serwera');
+                    }
+                    if (buttonWrap) {
+                        buttonWrap.style.display = newValue ? '' : 'none';
+                    }
+                })
+                .catch(function (err) {
+                    checkbox.checked = !checkbox.checked;
+                    if (window.OrderProAlerts && typeof window.OrderProAlerts.error === 'function') {
+                        window.OrderProAlerts.error('Nie udalo sie zmienic flagi faktury: ' + (err && err.message ? err.message : ''));
+                    } else {
+                        console.error('invoice-requested toggle failed', err);
+                    }
+                })
+                .finally(function () {
+                    checkbox.disabled = false;
+                });
+        });
+    }
+
+    if (document.readyState === 'loading') {
+        document.addEventListener('DOMContentLoaded', init);
+    } else {
+        init();
+    }
+})();