선생님 위치 알리기 화면도 호출 화면처럼 가운데 최대 560 폭으로 제한

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

lib/ui/teacher_location_screen.dart

@@ -74,6 +74,12 @@ class _TeacherLocationScreenState extends State<TeacherLocationScreen> {
     );
   }
 
+  /// 넓은 화면(웹 데스크톱)에서 내용이 양옆으로 늘어지지 않게 가운데 최대 560 폭으로 맞춘다.
+  double _sidePad(BuildContext context) {
+    final width = MediaQuery.of(context).size.width;
+    return ((width - 560) / 2).clamp(16.0, double.infinity);
+  }
+
   @override
   Widget build(BuildContext context) {
     return ListenableBuilder(
@@ -91,7 +97,12 @@ class _TeacherLocationScreenState extends State<TeacherLocationScreen> {
               : RefreshIndicator(
                   onRefresh: _controller.fetchReceivedCalls,
                   child: ListView(
-                    padding: const EdgeInsets.fromLTRB(16, 0, 16, 16),
+                    padding: EdgeInsets.fromLTRB(
+                      _sidePad(context),
+                      0,
+                      _sidePad(context),
+                      16,
+                    ),
                     children: [
                       const Center(child: TitlePill('내 위치 알리기')),
                       const SizedBox(height: 16),