feat(08-10-receipt-module): phases 08-10 complete — receipt issuing from orders

Phase 08 — DB Foundation:
- 3 new tables: receipt_configs, receipts, receipt_number_counters
- company_settings extended with BDO, REGON, KRS, logo fields

Phase 09 — Receipt Config:
- CRUD for receipt configurations (Settings > Accounting)
- ReceiptConfigController + ReceiptConfigRepository

Phase 10 — Receipt Issuing:
- ReceiptRepository with atomic numbering (INSERT ON DUPLICATE KEY UPDATE)
- ReceiptController with snapshot pattern (seller/buyer/items as JSON)
- "Wystaw paragon" button in order view
- Documents tab showing both receipts and marketplace documents
- Activity log entry on receipt creation

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

DOCS/ARCHITECTURE.md

@@ -9,6 +9,7 @@
 - `App\Modules\Orders`
 - `App\Modules\Users`
 - `App\Modules\Settings`
+- `App\Modules\Accounting` (modul paragonow — wystawianie z zamowien)
 
 ## Routing
 - `GET /login`, `POST /login`, `POST /logout`
@@ -54,6 +55,10 @@
 - `POST /settings/integrations/shoppro/statuses/save`
 - `POST /settings/integrations/shoppro/statuses/sync`
 - `POST /settings/integrations/shoppro/delivery/save`
+- `GET /settings/accounting`
+- `POST /settings/accounting/save`
+- `POST /settings/accounting/toggle`
+- `POST /settings/accounting/delete`
 - `GET /health`
 - `GET /` (redirect)
 
@@ -111,6 +116,10 @@
 - `App\Modules\Settings\AllegroOrdersSyncService`
 - `App\Modules\Settings\AllegroOrderSyncStateRepository`
 - `App\Modules\Settings\AllegroStatusSyncService`
+- `App\Modules\Settings\ReceiptConfigController`
+- `App\Modules\Settings\ReceiptConfigRepository`
+- `App\Modules\Accounting\ReceiptRepository`
+- `App\Modules\Accounting\ReceiptController`
 - `App\Modules\Shipments\ShipmentProviderInterface`
 - `App\Modules\Shipments\ShipmentProviderRegistry`
 - `App\Modules\Shipments\ApaczkaShipmentService`
@@ -197,6 +206,39 @@
   - `Statusy` (`/settings/statuses`).
   - `Cron` (`/settings/cron`).
   - `Integracje` (`/settings/integrations`) - wspolny hub konfiguracji providerow.
+  - `Ksiegowosc` (`/settings/accounting`) - konfiguracja paragonow.
+
+## Przeplyw Ustawienia > Ksiegowosc (konfiguracja paragonow)
+- `GET /settings/accounting`:
+  - `ReceiptConfigController::index(Request): Response`
+  - pobiera liste konfiguracji przez `ReceiptConfigRepository::listAll()`,
+  - opcjonalnie laduje konfiguracje do edycji przez `findById()` (query param `edit`),
+  - renderuje widok `resources/views/settings/accounting.php`.
+- `POST /settings/accounting/save`:
+  - `ReceiptConfigController::save(Request): Response`
+  - waliduje CSRF, nazwe (wymagana) i format numeracji (wymagany, musi zawierac `%N`),
+  - zapisuje przez `ReceiptConfigRepository::save(...)` (INSERT lub UPDATE wg obecnosci `id`).
+- `POST /settings/accounting/toggle`:
+  - `ReceiptConfigController::toggleStatus(Request): Response`
+  - przelacza `is_active` przez `ReceiptConfigRepository::toggleStatus(...)`.
+- `POST /settings/accounting/delete`:
+  - `ReceiptConfigController::delete(Request): Response`
+  - usuwa konfiguracje przez `ReceiptConfigRepository::delete(...)`,
+  - FK RESTRICT blokuje usuniecie jesli istnieja powiazane paragony.
+
+## Przeplyw Wystawianie paragonu z zamowienia
+- `GET /orders/{id}/receipt/create`:
+  - `ReceiptController::create(Request): Response`
+  - pobiera zamowienie (OrdersRepository::findDetails), aktywne konfiguracje, dane sprzedawcy,
+  - renderuje formularz `resources/views/orders/receipt-create.php`.
+- `POST /orders/{id}/receipt/store`:
+  - `ReceiptController::store(Request): Response`
+  - waliduje CSRF, config_id, istnienie zamowienia,
+  - buduje snapshoty: seller_data_json (z company_settings), buyer_data_json (z adresow zamowienia), items_json (z pozycji),
+  - oblicza total_gross, sale_date (wg sale_date_source z konfiguracji), order_reference_value,
+  - generuje numer atomowo przez `ReceiptRepository::getNextNumber(...)` (INSERT ON DUPLICATE KEY UPDATE na receipt_number_counters),
+  - zapisuje paragon przez `ReceiptRepository::create(...)`,
+  - redirect na /orders/{id} z flash success.
 
 ## Przeplyw Ustawienia > Cron
 - `GET /settings/cron`: