사용하지 않는 파일 정리 전 백업 (Phase 10 완료 후 상태)

lib/screens/equipment/widgets/autocomplete_text_field.dart

@@ -14,7 +14,7 @@ class AutocompleteTextField extends StatefulWidget {
   final FocusNode? focusNode;
 
   const AutocompleteTextField({
-    Key? key,
+    super.key,
     required this.label,
     required this.value,
     required this.items,
@@ -23,7 +23,7 @@ class AutocompleteTextField extends StatefulWidget {
     this.isRequired = false,
     this.hintText = '',
     this.focusNode,
-  }) : super(key: key);
+  });
 
   @override
   State<AutocompleteTextField> createState() => _AutocompleteTextFieldState();
@@ -141,7 +141,7 @@ class _AutocompleteTextFieldState extends State<AutocompleteTextField> {
                 borderRadius: BorderRadius.circular(4),
                 boxShadow: [
                   BoxShadow(
-                    color: Colors.grey.withOpacity(0.3),
+                    color: Colors.grey.withValues(alpha: 0.3),
                     blurRadius: 4,
                     offset: const Offset(0, 2),
                   ),