Integrations DI refactor, remove Sellasist/Baselinker, fix product-edit encoding (0.263)

- New: Domain\Integrations\IntegrationsRepository + admin\Controllers\IntegrationsController (DI)
- Cleanup: removed all Sellasist and Baselinker integrations from entire project
- Fix: product-edit.php Polish characters (UTF-8/CP1250 double-encoding)
- Update: factory\Integrations as facade (Apilo + ShopPRO only)
- Tests: 212 tests, 577 assertions

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

REFACTORING_PLAN.md

@@ -260,12 +260,23 @@ grep -r "Product::getQuantity" .
     - Legacy cleanup: usuniety `autoload/admin/controls/class.Users.php`
     - Testy: 25 testow repozytorium (CRUD, logon, 2FA, checkLogin) + 12 testow kontrolera (kontrakty + normalizeUser)
 
+- **Integrations** (migracja kontrolera i repozytorium + cleanup Sellasist/Baselinker)
+  - ✅ IntegrationsRepository - **ZMIGROWANE** (2026-02-13) 🎉
+    - Nowa klasa: `Domain\Integrations\IntegrationsRepository` (settings Apilo/ShopPRO, OAuth, product linking, API fetch)
+    - Nowy kontroler: `admin\Controllers\IntegrationsController` (DI, instancyjny)
+    - Router: `admin\Site` - factory wpis dla modulu `Integrations`
+    - Fasada: `admin\factory\Integrations` deleguje do repozytorium (tylko Apilo + ShopPRO)
+    - **CLEANUP:** usunieto integracje Sellasist i Baselinker z calego projektu
+    - Usuniete pliki: `controls/Integrations`, `controls/Baselinker`, `factory/Baselinker`, `front/factory/Shop`, `shop/ShopStatus`, szablony sellasist/baselinker
+    - Wyczyszczone referencje w: cron.php, Order, ShopStatuses, ShopTransport, ShopPaymentMethod, ShopProduct, config.php, front/factory/*
+    - Testy: 16 nowych testow (repozytorium) + 10 testow kontrolera
+    - Aktualizacja: ver. 0.263
+
 ### 📋 Do zrobienia
 - Order
 - Category
 - ShopAttribute
 - ShopProduct (factory)
-- Pages (`browse_list` i widoki drzewiaste nadal w legacy `admin\controls` / `admin\view`)
 
 ## Testowanie
 
@@ -286,17 +297,19 @@ tests/
 │   │   ├── Dictionaries/DictionariesRepositoryTest.php
 │   │   ├── Product/ProductRepositoryTest.php
 │   │   ├── Settings/SettingsRepositoryTest.php
-│   │   └── User/UserRepositoryTest.php
+│   │   ├── User/UserRepositoryTest.php
+│   │   └── Integrations/IntegrationsRepositoryTest.php
 │   └── admin/
 │       └── Controllers/
 │           ├── ArticlesControllerTest.php
 │           ├── DictionariesControllerTest.php
+│           ├── IntegrationsControllerTest.php
 │           ├── ProductArchiveControllerTest.php
 │           ├── SettingsControllerTest.php
 │           └── UsersControllerTest.php
 └── Integration/
 ```
-**Łącznie: 119 testów, 256 asercji**
+**Łącznie: 212 testów, 577 asercji**
 
 ### Przykład testu
 ```php
@@ -381,10 +394,11 @@ vendor/bin/phpstan analyse autoload/Domain
 6. **ProductArchive** ✅ (migracja kontrolera + cleanup szablonów, ver. 0.252)
 7. **Filemanager** ✅ (migracja routingu + fix `Invalid Key`, ver. 0.252)
 8. **Users** ✅ (repo + kontroler + 2FA + legacy cleanup, ver. 0.253)
-9. **Order**
-10. **Category**
-11. **ShopAttribute**
-12. **Pages** (`browse_list` i powiązane widoki nadal legacy)
+9. **Pages** ✅ (repo + kontroler + drzewo stron + AJAX endpoints, ver. 0.262)
+10. **Integrations** ✅ (repo + kontroler + cleanup Sellasist/Baselinker, ver. 0.263)
+11. **Order**
+12. **Category**
+13. **ShopAttribute**
 
 - **Form Edit System** - Nowy uniwersalny system formularzy edycji
   - ✅ Klasy ViewModel: `FormFieldType`, `FormField`, `FormTab`, `FormAction`, `FormEditViewModel`
@@ -589,7 +603,7 @@ Gdy `persist = true`:
 - **NOWE:** `admin\\Controllers\\LanguagesController` (DI) dla akcji `view_list/list`, `language_*`, `translation_*`
 - **UPDATE:** `admin\\factory\\Languages` jako fasada delegujaca do repozytorium
 - **CLEANUP:** usunieto legacy `admin\\controls\\Languages` oraz `admin\\view\\Languages`
-- **UPDATE:** poprawki globalne `components/table-list` dla krotkich kolumn/filtr<74>w
+- **UPDATE:** poprawki globalne `components/table-list` dla krotkich kolumn/filtr<74>w
 
 ## Aktualizacja 2026-02-12 (ver. 0.255)
 - UPDATE: SettingsController, BannerController, DictionariesController, ArticlesController pobieraja liste jezykow przez Domain/Languages/LanguagesRepository (DI) zamiast legacy admin/factory/Languages.
@@ -700,3 +714,14 @@ Gdy `persist = true`:
 - UPDATE: endpointy zalezne od Pages w innych modulach (`articles`, `layouts`, `shop-category`, `shop-product`) przepiete z `admin/ajax.php?a=*` na `/admin/pages/*`.
 - CLEANUP: usuniete `autoload/admin/controls/class.Pages.php`, `autoload/admin/view/class.Pages.php`, `autoload/admin/factory/class.Pages.php`, `admin/ajax/pages.php`; `admin/ajax.php` nie includuje juz `ajax/pages.php`.
 - Testy: **OK (186 tests, 478 assertions)**.
+
+## Aktualizacja 2026-02-13 - Integrations (/admin/integrations)
+- NOWE: `Domain\Integrations\IntegrationsRepository` (settings Apilo/ShopPRO, OAuth, product linking, API fetch lists, product search/create, ShopPRO import).
+- NOWE: `admin\Controllers\IntegrationsController` (DI) dla akcji: `apilo_settings`, `apilo_settings_save`, `apilo_authorization`, `get_platform_list`, `get_status_types_list`, `get_carrier_account_list`, `get_payment_types_list`, `apilo_create_product`, `apilo_product_search`, `apilo_product_select_save`, `apilo_product_select_delete`, `shoppro_settings`, `shoppro_settings_save`, `shoppro_product_import`.
+- UPDATE: `admin\factory\Integrations` jako fasada delegujaca do `Domain\Integrations\IntegrationsRepository` (tylko Apilo + ShopPRO).
+- **CLEANUP: usunieto integracje Sellasist i Baselinker z calego projektu:**
+  - Usuniete klasy: `admin\controls\Integrations`, `admin\controls\Baselinker`, `admin\factory\Baselinker`, `front\factory\Shop`, `shop\ShopStatus`
+  - Usuniete szablony: `integrations/sellasist-settings.php`, `integrations/baselinker-settings.php`, `admin/templates/baselinker/`
+  - Wyczyszczone referencje w: `cron.php`, `cron/cron-xml.php`, `shop\Order`, `admin\controls\ShopStatuses`, `admin\controls\ShopTransport`, `admin\controls\ShopPaymentMethod`, `admin\controls\ShopProduct`, `admin\factory\ShopStatuses`, `admin\factory\ShopTransport`, `admin\factory\ShopProduct`, `front\factory\ShopStatuses`, `front\factory\ShopTransport`, `front\factory\ShopPaymentMethod`, `front\factory\ShopProduct`, `front\factory\ShopOrder`, `shop\Product`, `config.php`
+  - Wyczyszczone szablony: `shop-statuses/*`, `shop-transport/*`, `shop-payment-method/*`, `shop-product/*`, `site/main-layout.php`
+- Testy: **OK (212 tests, 577 assertions)**.