API v4 계약 반영하고 보고서·입출고 화면 실연동 강화

lib/features/inventory/shared/widgets/employee_autocomplete_field.dart

@@ -37,6 +37,7 @@ class InventoryEmployeeAutocompleteField extends StatefulWidget {
     required this.onSuggestionSelected,
     this.onChanged,
     this.enabled = true,
+    this.placeholder = '작성자 이름 또는 사번 검색',
   });
 
   final TextEditingController controller;
@@ -44,6 +45,7 @@ class InventoryEmployeeAutocompleteField extends StatefulWidget {
   final ValueChanged<InventoryEmployeeSuggestion?> onSuggestionSelected;
   final VoidCallback? onChanged;
   final bool enabled;
+  final String placeholder;
 
   @override
   State<InventoryEmployeeAutocompleteField> createState() =>
@@ -193,7 +195,7 @@ class _InventoryEmployeeAutocompleteFieldState
           controller: textController,
           focusNode: focusNode,
           enabled: widget.enabled,
-          placeholder: const Text('작성자 이름 또는 사번 검색'),
+          placeholder: Text(widget.placeholder),
           onChanged: (_) => widget.onChanged?.call(),
           onSubmitted: (_) => onFieldSubmitted(),
         );