fix(app): 일정 상세 화면 하단 소프트키 영역 잘림 수정

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/lib/views/schedule/schedule_detail_view.dart

@@ -176,8 +176,9 @@ class _ScheduleDetailViewState extends ConsumerState<ScheduleDetailView> {
 
   /// 메인 컨텐츠
   Widget _buildContent(ScheduleDetail schedule) {
+    final bottomPadding = MediaQuery.of(context).padding.bottom;
     return SingleChildScrollView(
-      padding: const EdgeInsets.all(16),
+      padding: EdgeInsets.fromLTRB(16, 16, 16, 16 + bottomPadding),
       child: _buildCategorySection(schedule),
     );
   }