refactor(shop-statuses): migrate to DI, restructure docs into docs/ folder (0.268)

- Migrate ShopStatuses module to Domain + DI architecture
- Add ShopStatusRepository, ShopStatusesController with color picker
- Convert front\factory\ShopStatuses to facade
- Add FormFieldType::COLOR with HTML5 color picker
- Move documentation files to docs/ folder (PROJECT_STRUCTURE, REFACTORING_PLAN, CHANGELOG, FORM_EDIT_SYSTEM, TESTING, DATABASE_STRUCTURE)
- Tests: 254 tests, 736 assertions

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

admin/templates/site/main-layout.php

@@ -73,7 +73,7 @@
             <li><a href="/admin/shop_transport/view_list/"><img src="/admin/layout/icon/icon-menu/bus.svg">Rodzaje transportu</a></li>
             <li><a href="/admin/shop_payment_method/view_list/"><img src="/admin/layout/icon/icon-menu/coins-fill.svg">Metody p&#322;atno&#347;ci</a></li>
             <li>
-              <a href="/admin/shop_statuses/view_list/"><i class="fa fa-bars"></i>Statusy zam&#243;wie&#324;</a>
+              <a href="/admin/shop_statuses/list/"><i class="fa fa-bars"></i>Statusy zam&#243;wie&#324;</a>
             </li>
             <li><a href="/admin/shop_coupon/list/"><img src="/admin/layout/icon/icon-menu/piggy-bank-coins.svg">Kody rabatowe</a></li>
             <li><a href="/admin/shop_promotion/list/"><img src="/admin/layout/icon/icon-menu/burst-sale.svg">Promocje</a></li>