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>

src/Modules/Settings/ShopproOrdersSyncService.php

@@ -270,6 +270,12 @@ final class ShopproOrdersSyncService
                 );
             }
 
+            if ($savedOrderId > 0 && $wasCreated) {
+                if ($this->shouldRequestInvoice($rawOrder)) {
+                    $this->orders->setInvoiceRequested($savedOrderId, true);
+                }
+            }
+
             if ($savedOrderId > 0 && $wasCreated && !$wasPaymentTransition && $this->automationService !== null) {
                 $this->automationService->trigger('order.imported', $savedOrderId, [
                     'source' => 'shoppro',
@@ -301,6 +307,36 @@ final class ShopproOrdersSyncService
         }
     }
 
+    /**
+     * Detect "klient prosi o fakture" flag from shopPRO raw payload.
+     * Tries common keys; returns false when none present (manual toggle still possible).
+     *
+     * @param array<string, mixed> $rawOrder
+     */
+    private function shouldRequestInvoice(array $rawOrder): bool
+    {
+        foreach ([['wants_invoice'], ['invoice_required'], ['invoice', 'required'], ['buyer', 'wants_invoice'], ['buyer', 'invoice']] as $path) {
+            $value = $rawOrder;
+            $found = true;
+            foreach ($path as $key) {
+                if (!is_array($value) || !array_key_exists($key, $value)) {
+                    $found = false;
+                    break;
+                }
+                $value = $value[$key];
+            }
+            if ($found && (
+                $value === true
+                || $value === 1
+                || $value === '1'
+                || (is_string($value) && in_array(strtolower($value), ['true', 'yes', 'tak'], true))
+            )) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     /**
      * @param mixed $rawIds
      * @return array<int, true>