feat(vehicle): dedicated photo upload with MediaLibrary + form field

Vehicle model now implements HasMedia + InteractsWithMedia and
registers a 'photos' collection. VehicleResource form gets a
SpatieMediaLibraryFileUpload section (collapsible, max 6 photos,
imageEditor enabled).

Dashboard already checks vehicle->getFirstMediaUrl('photos') first
and falls back to the WO's photos, so uploading here immediately
populates the vehicle card on the dashboard without any view changes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/Filament/Tenant/Resources/VehicleResource.php

@@ -93,6 +93,16 @@ class VehicleResource extends Resource
                     Forms\Components\TextInput::make('mileage')->label(__('Kilometraj'))->numeric()->default(0),
                     Forms\Components\TextInput::make('color')->maxLength(40),
                 ]),
+            Schemas\Components\Section::make(__('Foto'))
+                ->collapsible()->collapsed()->compact()
+                ->schema([
+                    Forms\Components\SpatieMediaLibraryFileUpload::make('photos')
+                        ->label(__('Fotografii'))
+                        ->collection('photos')
+                        ->multiple()->reorderable()->image()->imageEditor()->maxFiles(6)
+                        ->helperText(__('Prima poză apare pe dashboard-ul fișei ca imagine principală a mașinii.'))
+                        ->columnSpanFull(),
+                ]),
             Forms\Components\Textarea::make('notes')->label(__('Notițe'))->columnSpanFull()->rows(3),
         ]);
     }