Add Achitat + Rest de achitat display fields in payment section

Shows the financial breakdown inline in the Plată & total section:
- Total (MDL) — bold, computed
- Achitat (MDL) — green, from paidAmount()
- Rest de achitat (MDL) — red if unpaid, green if fully paid

All three fields are readOnly/dehydrated (display only). To register
payments, use the Plăți relation manager tab.
Translations added for RO/RU/EN.

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

app/Filament/Tenant/Resources/WorkOrderResource.php

@@ -173,7 +173,22 @@ class WorkOrderResource extends Resource
                         ->placeholder(__('Ex: 25'))
                         ->helperText(__('Doar pentru cazuri speciale. Lasă gol → folosește marja mecanicului.'))
                         ->visible(fn () => auth()->user()?->canDo(\App\Auth\Permissions::FINANCE_VIEW_INTERNAL_MARGIN) ?? false),
-                    Forms\Components\TextInput::make('total')->label(__('Total'))->numeric()->readOnly()->dehydrated(false),
+                    Forms\Components\TextInput::make('total')
+                        ->label(__('Total (MDL)'))
+                        ->numeric()->readOnly()->dehydrated(false)
+                        ->extraAttributes(['style' => 'font-weight:600']),
+                    Forms\Components\TextInput::make('_achitat')
+                        ->label(__('Achitat (MDL)'))
+                        ->readOnly()->dehydrated(false)
+                        ->default(fn ($record) => $record ? number_format($record->paidAmount(), 2, '.', '') : '0.00')
+                        ->extraAttributes(['style' => 'color:#16a34a;font-weight:600']),
+                    Forms\Components\TextInput::make('_rest')
+                        ->label(__('Rest de achitat (MDL)'))
+                        ->readOnly()->dehydrated(false)
+                        ->default(fn ($record) => $record ? number_format(max(0, (float)$record->total - $record->paidAmount()), 2, '.', '') : '0.00')
+                        ->extraAttributes(fn ($record) => [
+                            'style' => 'font-weight:600;color:' . ($record && $record->paidAmount() >= (float)$record->total ? '#16a34a' : '#dc2626'),
+                        ]),
                     Forms\Components\Toggle::make('approved')->label(__('Aprobat de client')),
                     Forms\Components\DatePicker::make('closed_at')->label(__('Închis')),
                 ]),

lang/en.json

@@ -59,6 +59,9 @@
     "Această acțiune este ireversibilă": "This action is irreversible",
     "Acest email a fost generat automat. Vă rugăm nu răspundeți.": "This email was auto-generated. Please do not reply.",
     "Achitat": "Paid",
+    "Achitat (MDL)": "Paid (MDL)",
+    "Rest de achitat (MDL)": "Balance due (MDL)",
+    "Total (MDL)": "Total (MDL)",
     "Achitat azi": "Paid today",
     "Achitat:": "Paid:",
     "Achiziție piese": "Parts purchase",

lang/ru.json

@@ -59,6 +59,9 @@
     "Această acțiune este ireversibilă": "Это действие необратимо",
     "Acest email a fost generat automat. Vă rugăm nu răspundeți.": "Это письмо сгенерировано автоматически. Пожалуйста, не отвечайте.",
     "Achitat": "Оплачено",
+    "Achitat (MDL)": "Оплачено (MDL)",
+    "Rest de achitat (MDL)": "Остаток к оплате (MDL)",
+    "Total (MDL)": "Итого (MDL)",
     "Achitat azi": "Оплачено сегодня",
     "Achitat:": "Оплачено:",
     "Achiziție piese": "Закупка запчастей",