PDF: remove part codes; payments: pre-fill amount with balance due

- PDF parts table: removed Cod/article column, widened Denumire column,
  fixed colspan in tfoot from 4 to 3
- PaymentsRelationManager: amount field now defaults to (total - paidAmount)
  so it pre-fills with the remaining balance; always editable

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Filament/Tenant/Resources/WorkOrderResource/RelationManagers/PaymentsRelationManager.php

@@ -25,7 +25,14 @@ class PaymentsRelationManager extends RelationManager
     {
         return $schema->components([
             Forms\Components\DatePicker::make('paid_at')->label(__('Data'))->default(today())->required(),
-            Forms\Components\TextInput::make('amount')->label(__('Sumă'))->numeric()->required(),
+            Forms\Components\TextInput::make('amount')
+                ->label(__('Sumă'))
+                ->numeric()
+                ->required()
+                ->default(function (RelationManager $livewire): float {
+                    $wo = $livewire->getOwnerRecord();
+                    return max(0.0, (float) $wo->total - $wo->paidAmount());
+                }),
             Forms\Components\Select::make('method')
                 ->options(\App\Support\I18n::opts(Payment::METHODS))
                 ->default('cash')

resources/views/pdf/work-order.blade.php

@@ -225,10 +225,9 @@
         <table class="items">
             <thead>
                 <tr>
-                    <th style="width: 40%;">{{ __('Denumire') }}</th>
-                    <th style="width: 18%;">{{ __('Cod') }}</th>
+                    <th style="width: 55%;">{{ __('Denumire') }}</th>
                     <th class="r" style="width: 10%;">{{ __('Cant.') }}</th>
-                    <th class="r" style="width: 14%;">{{ __('Preț') }}</th>
+                    <th class="r" style="width: 17%;">{{ __('Preț') }}</th>
                     <th class="r" style="width: 18%;">{{ __('Total') }}</th>
                 </tr>
             </thead>
@@ -236,7 +235,6 @@
                 @foreach ($wo->parts as $p)
                     <tr>
                         <td>{{ $p->name }}@if ($p->brand) <span style="color:#9ca3af;">({{ $p->brand }})</span>@endif</td>
-                        <td>{{ $p->article ?? '—' }}</td>
                         <td class="r">{{ number_format((float) $p->qty, 2) }} {{ $p->unit }}</td>
                         <td class="r">{{ number_format((float) $p->sell_price, 2, '.', ' ') }}</td>
                         <td class="r"><b>{{ number_format((float) $p->total, 2, '.', ' ') }}</b></td>
@@ -245,7 +243,7 @@
             </tbody>
             <tfoot>
                 <tr>
-                    <td colspan="4" class="r">{{ __('Subtotal piese:') }}</td>
+                    <td colspan="3" class="r">{{ __('Subtotal piese:') }}</td>
                     <td class="r">{{ number_format((float) $partsTotal, 2, '.', ' ') }} {{ $currency }}</td>
                 </tr>
             </tfoot>