CONV-052: Add JPG to PNG converter capability

app/Support/Converters/Image/JpgToPngConverter.php

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+<?php
+
+namespace App\Support\Converters\Image;
+
+use App\Support\Converters\Contracts\Converter;
+use App\Support\Converters\OptionsValidator;
+
+final class JpgToPngConverter implements Converter
+{
+    public function __construct(
+        private readonly OptionsValidator $optionsValidator,
+    ) {}
+
+    public function key(): string
+    {
+        return 'jpg:png';
+    }
+
+    public function sourceFormat(): string
+    {
+        return 'jpg';
+    }
+
+    public function targetFormat(): string
+    {
+        return 'png';
+    }
+
+    public function label(): string
+    {
+        return 'PNG';
+    }
+
+    public function description(): string
+    {
+        return 'Convert photo to lossless PNG image';
+    }
+
+    public function optionsSchema(): array
+    {
+        return [
+            [
+                'key' => 'resize',
+                'type' => 'select',
+                'label' => 'Resize',
+                'default' => 'original',
+                'options' => [
+                    ['value' => 'original', 'label' => 'Original'],
+                    ['value' => '1920', 'label' => '1920 px'],
+                    ['value' => '1280', 'label' => '1280 px'],
+                    ['value' => 'custom', 'label' => 'Custom'],
+                ],
+            ],
+            [
+                'key' => 'remove_metadata',
+                'type' => 'toggle',
+                'label' => 'Remove metadata',
+                'default' => true,
+            ],
+        ];
+    }
+
+    public function validateOptions(array $options): array
+    {
+        return $this->optionsValidator->validate($this->optionsSchema(), $options);
+    }
+}

tests/Unit/Converters/Image/JpgToPngConverterTest.php

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+<?php
+
+use App\Support\Converters\Image\JpgToPngConverter;
+use App\Support\Converters\OptionsValidator;
+
+it('defines jpg to png converter capability', function () {
+    $converter = app(JpgToPngConverter::class);
+
+    expect($converter->key())->toBe('jpg:png');
+    expect($converter->sourceFormat())->toBe('jpg');
+    expect($converter->targetFormat())->toBe('png');
+    expect($converter->label())->toBe('PNG');
+    expect($converter->description())->not->toBeEmpty();
+});
+
+it('provides valid default options for jpg to png', function () {
+    $converter = app(JpgToPngConverter::class);
+
+    $options = app(OptionsValidator::class)->validate(
+        $converter->optionsSchema(),
+        []
+    );
+
+    expect($options)->toHaveKey('resize');
+    expect($options)->toHaveKey('remove_metadata');
+    expect($options)->not->toHaveKey('transparency');
+});