Return EvCompany logo as a full URL in the API resource

EvCompanyResource returned the raw disk-relative path stored by
Filament's FileUpload (e.g. "logos/xxx.png"), not something API
consumers can render directly.

- EvCompany::logoUrl() builds an absolute URL from the configured
  filesystem disk, guarding against a disk (e.g. s3) that already
  returns an absolute URL so it isn't double-prefixed.
- EvCompanyResource now exposes that as 'logo' instead of the raw path.

app-modules/catalog/tests/Feature/CatalogReadApiTest.php

@@ -1,6 +1,7 @@
 <?php
 
 use App\Models\User;
+use Illuminate\Support\Facades\Storage;
 use Modules\Catalog\Models\Destination;
 use Modules\Catalog\Models\EvCompany;
 
@@ -19,6 +20,24 @@ test('lists active ev companies', function () {
         ->assertJsonFragment(['id' => $active->id]);
 });
 
+test('returns the company logo as a full absolute url', function () {
+    $company = EvCompany::factory()->create(['is_active' => true, 'logo' => 'logos/example.png']);
+
+    $this->withHeader('Authorization', "Bearer {$this->token}")
+        ->getJson('/api/v1/companies')
+        ->assertSuccessful()
+        ->assertJsonFragment(['logo' => url(Storage::disk(config('filesystems.default'))->url($company->logo))]);
+});
+
+test('returns a null logo when the company has none', function () {
+    EvCompany::factory()->create(['is_active' => true, 'logo' => null]);
+
+    $this->withHeader('Authorization', "Bearer {$this->token}")
+        ->getJson('/api/v1/companies')
+        ->assertSuccessful()
+        ->assertJsonFragment(['logo' => null]);
+});
+
 test('lists active destinations', function () {
     $active = Destination::factory()->create(['is_active' => true]);
     Destination::factory()->create(['is_active' => false]);