feat(work-orders): new Mitchell1-style dashboard view (Phase 1 — layout + tabs)

Custom Filament Page at /app/work-orders/{id}/dashboard renders a
Mitchell1-inspired 3-column layout:
  - Top bar: WO#, status badge, actions (Edit / Tracking link)
  - Meta header row: creation / opened / ETA / responsible / urgency /
    paid amount (6 cells)
  - Left sidebar (300px): Client card (avatar, phone, email, status
    tag, 3-stat grid: visits/total/debt) + Vehicle card (photo, plate,
    VIN, mileage, engine, gearbox) + Repair history (latest 5 for this
    vehicle, links to dashboards)
  - Middle: tab bar (Lucrări/Piese/Diagnostic/Foto/Documente/Note)
    with Alpine-driven switching. Works & Parts show the tables read-
    only; add/edit still goes through existing EditWorkOrder Filament
    resource. Photos tab shows gallery from spatie/media-library.
  - Right (300px): Finance summary card (works cost, parts cost,
    discount, total, paid, balance) + placeholder for Timeline+Chat
    (Phase 2)
  - Responsive: right column collapses <1280px, left <900px.

'Vizualizare dashboard' button added on top of the existing
EditWorkOrder page so users can switch between edit form and info-
dense dashboard.

Fixed getSlug() signature (must match parent with ?Panel $panel).

+14 translations. All 306 tests pass.

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

app/Filament/Tenant/Resources/WorkOrderResource/Pages/EditWorkOrder.php

@@ -32,6 +32,11 @@ class EditWorkOrder extends EditRecord
     protected function getHeaderActions(): array
     {
         return [
+            Actions\Action::make('dashboard')
+                ->label(__('Vizualizare dashboard'))
+                ->icon('heroicon-m-squares-2x2')
+                ->color('info')
+                ->url(fn () => route('filament.tenant.pages.work-order-dashboard', ['record' => $this->record->id])),
             Actions\Action::make('apply_template')
                 ->label(__('Aplică șablon'))
                 ->icon('heroicon-m-clipboard-document-list')