refactor(inventory): enhance error reporting for negative stock validation

tests/Feature/Migrations/InventoryStockMovementMigrationTest.php

@@ -113,12 +113,16 @@ class InventoryStockMovementMigrationTest extends TestCase
     public function test_migration_rejects_an_inventory_with_negative_available_stock(): void
     {
         DB::table('inventories')->insert([
+            'id' => 23,
             'real_stock' => 1,
             'reserved_stock' => 2,
         ]);
 
         $this->expectException(\RuntimeException::class);
-        $this->expectExceptionMessage('stock disponible actual es negativo');
+        $this->expectExceptionMessage(
+            'stock disponible actual es negativo. Inventarios detectados (máximo 20): '
+            .'id=23 [real=1, vendidas=0, reintegradas=0, reservadas=2, reservas_entradas=0, resultado=-1]'
+        );
 
         $this->stockMigration()->up();
     }