feat(qr): QR code renderer (SVG + PNG), model, generate action

Implements QrRenderer using chillerlan/php-qrcode v6 API (outputInterface
instead of deprecated outputType constants), QrCode Eloquent model with
ULID auto-generation and soft deletes, and GenerateQrCode action.

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

app/Domains/QrCode/Actions/GenerateQrCode.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Domains\QrCode\Actions;
+
+use App\Domains\QrCode\Models\QrCode;
+use App\Domains\QrCode\Services\QrRenderer;
+use App\Models\User;
+
+class GenerateQrCode
+{
+    public function __construct(private readonly QrRenderer $renderer) {}
+
+    public function handle(
+        int $workspaceId,
+        string $type,
+        array $payload,
+        array $style,
+        User $creator,
+        ?int $linkId = null,
+    ): QrCode {
+        $data = $this->renderer->buildPayload($type, $payload);
+
+        return QrCode::create([
+            'workspace_id' => $workspaceId,
+            'link_id'      => $linkId,
+            'type'         => $type,
+            'payload'      => $payload,
+            'style'        => $style ?: null,
+            'created_by'   => $creator->id,
+        ]);
+    }
+}

app/Domains/QrCode/Models/QrCode.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace App\Domains\QrCode\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Support\Str;
+
+class QrCode extends Model
+{
+    use SoftDeletes, HasFactory;
+
+    protected $guarded = ['id'];
+
+    protected $casts = [
+        'payload' => 'array',
+        'style'   => 'array',
+        'ulid'    => 'string',
+    ];
+
+    protected static function booted(): void
+    {
+        static::creating(function (self $model) {
+            if (empty($model->ulid)) {
+                $model->ulid = (string) Str::ulid();
+            }
+        });
+    }
+
+    protected static function newFactory(): \Database\Factories\QrCodeFactory
+    {
+        return \Database\Factories\QrCodeFactory::new();
+    }
+
+    public function workspace(): \Illuminate\Database\Eloquent\Relations\BelongsTo
+    {
+        return $this->belongsTo(\App\Domains\Workspace\Models\Workspace::class);
+    }
+
+    public function link(): \Illuminate\Database\Eloquent\Relations\BelongsTo
+    {
+        return $this->belongsTo(\App\Domains\Link\Models\Link::class);
+    }
+
+    public function creator(): \Illuminate\Database\Eloquent\Relations\BelongsTo
+    {
+        return $this->belongsTo(\App\Models\User::class, 'created_by');
+    }
+}

app/Domains/QrCode/Services/QrRenderer.php

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+<?php
+
+namespace App\Domains\QrCode\Services;
+
+use chillerlan\QRCode\QRCode;
+use chillerlan\QRCode\QROptions;
+use chillerlan\QRCode\Output\QRMarkupSVG;
+use chillerlan\QRCode\Output\QRGdImagePNG;
+
+class QrRenderer
+{
+    public function toSvg(string $data, array $style): string
+    {
+        $options = new QROptions([
+            'outputInterface' => QRMarkupSVG::class,
+            'outputBase64'    => false,
+        ]);
+
+        return (new QRCode($options))->render($data);
+    }
+
+    public function toPngBase64(string $data, array $style): string
+    {
+        $options = new QROptions([
+            'outputInterface' => QRGdImagePNG::class,
+            'outputBase64'    => true,
+            'scale'           => 10,
+        ]);
+
+        return (new QRCode($options))->render($data);
+    }
+
+    public function buildPayload(string $type, array $data): string
+    {
+        return match ($type) {
+            'url'   => $data['url'],
+            'text'  => $data['text'],
+            'wifi'  => "WIFI:T:{$data['encryption']};S:{$data['ssid']};P:{$data['password']};;",
+            'vcard' => $this->buildVcard($data),
+            default => $data['url'] ?? '',
+        };
+    }
+
+    private function buildVcard(array $d): string
+    {
+        return "BEGIN:VCARD\nVERSION:3.0\nFN:{$d['name']}\nEMAIL:{$d['email']}\nTEL:{$d['phone']}\nEND:VCARD";
+    }
+}

tests/Unit/QrCode/QrRendererTest.php

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+<?php
+
+use App\Domains\QrCode\Services\QrRenderer;
+
+it('generates valid SVG for URL type', function () {
+    $renderer = new QrRenderer;
+    $svg = $renderer->toSvg('https://example.com', []);
+
+    expect($svg)->toContain('<svg')
+        ->toContain('</svg>');
+});
+
+it('generates png as base64', function () {
+    $renderer = new QrRenderer;
+    $png = $renderer->toPngBase64('https://example.com', []);
+
+    expect($png)->toStartWith('data:image/png;base64,');
+});