Feat: Extracting Cart and Checout from 3dealer

resources/views/checkout/partials/line-custom-fields.blade.php

@@ -0,0 +1,50 @@
+{{--
+    @include('checkout::partials.line-custom-fields', ['line' => $line])
+
+    A cart or order line's custom-field answers (meta.custom_fields, written by
+    Cart\Http\Controllers\CartController::customFieldsMeta()). A file answer
+    only carries a File id (Modules\Core\File\Models\File is the source of
+    truth for name/mime/disk/path — never duplicated into meta), resolved
+    here and linked through the signed download route (files.download),
+    minted fresh on every render, with a thumbnail when the browser can
+    display the format (HEIC can't be shown outside Safari, so it gets the
+    name only).
+--}}
+@php
+    $fields = $line->meta['custom_fields'] ?? [];
+    $previewable = ['image/jpeg', 'image/png', 'image/webp', 'image/gif'];
+@endphp
+
+@if (! empty($fields))
+    <dl class="bbk-line-fields">
+        @foreach ($fields as $field)
+            <div class="bbk-line-field">
+                <dt>{{ $field['label'] }}</dt>
+                <dd>
+                    @if ($field['type'] === 'file')
+                        @php
+                            $file = \Modules\Core\File\Models\File::find($field['file_id'] ?? null);
+                        @endphp
+                        @if ($file)
+                            @php
+                                $fileUrl = \Illuminate\Support\Facades\URL::temporarySignedRoute(
+                                    'files.download',
+                                    now()->addHours(2),
+                                    ['file' => $file->id],
+                                );
+                            @endphp
+                            <a href="{{ $fileUrl }}" class="bbk-line-field-file" target="_blank" rel="noopener">
+                                @if (in_array($file->mime, $previewable, true))
+                                    <img src="{{ $fileUrl }}" alt="" width="40" height="40" loading="lazy">
+                                @endif
+                                <span>{{ $file->original_name }}</span>
+                            </a>
+                        @endif
+                    @else
+                        {{ $field['value'] }}
+                    @endif
+                </dd>
+            </div>
+        @endforeach
+    </dl>
+@endif