feat(dashboard): clickable stat cards + 2 new WO counters + parts row link

Every card on the tenant main dashboard now links to a relevant page:

Operations widget (was 5 cards, now 7):
- Clienți → /app/clients
- Mașini → /app/vehicles
- Cereri noi → /app/leads pre-filtered by status=new
- Deal-uri active → /app/deals
- Programări azi → /app/calendar-board
- NEW: Fișe în lucru (in_work + awaiting_parts) → /app/work-orders filter
- NEW: Fișe gata predare (ready) → /app/work-orders filter

Finance widget (all 4 cards clickable now):
- Încasări → /app/payments
- Cheltuieli → /app/expenses
- Profit → /app/reports (with "Vezi raportul financiar" hint)
- Datorii → /app/work-orders pre-filtered by pay_status=unpaid

LowStockTable rows now navigate to /app/parts/{id}/edit on click and
have an explicit edit action for touch users.

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

app/Filament/Tenant/Widgets/LowStockTable.php

@@ -3,6 +3,7 @@
 namespace App\Filament\Tenant\Widgets;
 
 use App\Models\Tenant\Part;
+use Filament\Actions\Action;
 use Filament\Tables;
 use Filament\Tables\Table;
 use Filament\Widgets\TableWidget as BaseWidget;
@@ -38,6 +39,13 @@ class LowStockTable extends BaseWidget
                 Tables\Columns\TextColumn::make('min_qty')->label(__('Min.'))->alignRight(),
                 Tables\Columns\TextColumn::make('preferredSupplier.name')->label(__('Furnizor'))->placeholder('—'),
             ])
+            ->recordUrl(fn (Part $r) => url('/app/parts/' . $r->id . '/edit'))
+            ->actions([
+                Action::make('edit')
+                    ->label(__('Editează'))
+                    ->icon('heroicon-m-pencil-square')
+                    ->url(fn (Part $r) => url('/app/parts/' . $r->id . '/edit')),
+            ])
             ->paginated(false)
             ->defaultSort('qty');
     }