Add new settings and cache repository files, update admin settings controller and templates

- Introduced new `SettingsRepository` and `CacheRepository` classes in the `autoload\Domain` namespace.
- Updated `SettingsController` in the `admin\Controllers` namespace to enhance settings management.
- Added new templates for settings in `admin\templates\settings` and `admin\templates\site`.
- Improved overall structure and organization of settings-related files.

tests/Unit/Domain/Banner/BannerRepositoryTest.php

@@ -0,0 +1,119 @@
+<?php
+namespace Tests\Unit\Domain\Banner;
+
+use PHPUnit\Framework\TestCase;
+use Domain\Banner\BannerRepository;
+
+class BannerRepositoryTest extends TestCase
+{
+    /**
+     * Test pobierania banera - zwraca dane z tłumaczeniami
+     */
+    public function testFindReturnsBannerWithTranslations()
+    {
+        // Arrange
+        $mockDb = $this->createMock(\medoo::class);
+
+        $mockDb->expects($this->once())
+            ->method('get')
+            ->with('pp_banners', '*', ['id' => 1])
+            ->willReturn(['id' => 1, 'name' => 'Baner testowy', 'status' => 1]);
+
+        $mockDb->expects($this->once())
+            ->method('select')
+            ->with('pp_banners_langs', '*', ['id_banner' => 1])
+            ->willReturn([
+                ['id_lang' => 'pl', 'src' => 'banner.jpg', 'url' => '/promo'],
+                ['id_lang' => 'en', 'src' => 'banner-en.jpg', 'url' => '/promo-en'],
+            ]);
+
+        $repository = new BannerRepository($mockDb);
+
+        // Act
+        $banner = $repository->find(1);
+
+        // Assert
+        $this->assertIsArray($banner);
+        $this->assertEquals('Baner testowy', $banner['name']);
+        $this->assertArrayHasKey('languages', $banner);
+        $this->assertCount(2, $banner['languages']);
+        $this->assertEquals('banner.jpg', $banner['languages']['pl']['src']);
+    }
+
+    /**
+     * Test pobierania banera - nie istnieje
+     */
+    public function testFindReturnsNullWhenNotFound()
+    {
+        // Arrange
+        $mockDb = $this->createMock(\medoo::class);
+        $mockDb->method('get')->willReturn(false);
+
+        $repository = new BannerRepository($mockDb);
+
+        // Act
+        $banner = $repository->find(999);
+
+        // Assert
+        $this->assertNull($banner);
+    }
+
+    /**
+     * Test usuwania banera - sukces
+     */
+    public function testDeleteReturnsTrue()
+    {
+        // Arrange
+        $mockDb = $this->createMock(\medoo::class);
+        $mockDb->expects($this->once())
+            ->method('delete')
+            ->with('pp_banners', ['id' => 5])
+            ->willReturn($this->createMock(\PDOStatement::class));
+
+        $repository = new BannerRepository($mockDb);
+
+        // Act
+        $result = $repository->delete(5);
+
+        // Assert
+        $this->assertTrue($result);
+    }
+
+    /**
+     * Test zapisywania nowego banera
+     */
+    public function testSaveInsertsNewBanner()
+    {
+        // Arrange
+        $mockDb = $this->createMock(\medoo::class);
+
+        // insert() wywoływane 2x: raz dla banera, raz dla tłumaczenia
+        $mockDb->expects($this->exactly(2))
+            ->method('insert');
+
+        $mockDb->expects($this->once())
+            ->method('id')
+            ->willReturn(10);
+
+        // get() for checking existing translations - returns false (no existing)
+        $mockDb->method('get')->willReturn(false);
+
+        $repository = new BannerRepository($mockDb);
+
+        // Act
+        $result = $repository->save([
+            'name' => 'Nowy baner',
+            'status' => 'on',
+            'date_start' => '',
+            'date_end' => '',
+            'home_page' => 'on',
+            'src' => ['pl' => 'banner.jpg'],
+            'url' => ['pl' => '/promo'],
+            'html' => ['pl' => ''],
+            'text' => ['pl' => 'Tekst'],
+        ]);
+
+        // Assert
+        $this->assertEquals(10, $result);
+    }
+}