feat: profile_photo en contratos activos, notificaciones bilingues en reportes y foto en panel usuarios

- API contratos activos (cliente y proveedor): agrega campo profile_photo (técnico asignado o supplier, null si no tiene)
- Notificaciones push bilingues en comentarios de reporte: "Nueva actividad en tu reporte" / "New activity on your report"
- Moderador en web panel notifica a cliente y proveedor al comentar, con prefijo Moderador/Moderator
- Panel usuarios: columna de foto de perfil entre ID y Nombre

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

app/Http/Controllers/SupplierController.php

@@ -1280,12 +1280,19 @@ class SupplierController extends Controller
         ], 400);
       }
 
-      $contracts = CurrentContracts::where('supplier_id', $supplier->id)->orderBy('created_at', 'DESC')->get();
+      $contracts = CurrentContracts::with(['technician.user'])
+          ->where('supplier_id', $supplier->id)->orderBy('created_at', 'DESC')->get();
 
       $contractsinfo = array();
 
       foreach ($contracts as $contract) {
           $category = Categories::where('id', $contract->category_id)->first();
+          $technician = $contract->technical_id
+              ? ($contract->technician->user->name ?? null)
+              : ($supplier->user->name ?? null);
+          $profile_photo = $contract->technical_id
+              ? ($contract->technician->user->profile_photo ?? null)
+              : ($supplier->user->profile_photo ?? null);
               $contractinfo = array(
                 'id' => $contract->id,
                 'phone' => $contract->user->phone,
@@ -1297,7 +1304,9 @@ class SupplierController extends Controller
                 'lat' => $contract->location->getLat(),
                 'lng' => $contract->location->getLng(),
                 'amount' => $contract->amount,
-                'details' => $contract->details
+                'details' => $contract->details,
+                'technician' => $technician,
+                'profile_photo' => $profile_photo
               );
               $contractsinfo[] = $contractinfo;
       }