선생님 호출/반출 신청 화면의 검정 아이콘·버튼을 테마 강조색으로 변경

teacher_call_screen: 방문목적 선택 칩, 선생님 선택 타일, 호출하기 버튼,
섹션 제목 강조바, 선생님 상태 아이콘(수업중 아닐 때)이 전부 AppPalette.ink로
고정돼 있어서 테마를 적용해도 검정으로 남아있었다. globalProfileTheme의
accent를 쓰도록 변경.

device_checkout_request_screen: "시작 시각"/"종료 시각" OutlinedButton이
스타일 지정이 아예 없어서 기본 색(검정 계열)으로 나오던 것도 같이 테마
강조색으로 맞췄다.

lib/ui/teacher_call_screen.dart

@@ -5,6 +5,7 @@ import 'package:flutter/material.dart';
 import '../data/teacher_call_schedule.dart';
 import '../function/teacher_call_controller.dart';
 import '../theme/app_palette.dart';
+import '../theme/theme_sync.dart';
 import 'app_notice.dart';
 import 'title_pill.dart';
 
@@ -30,6 +31,9 @@ class _TeacherCallScreenState extends State<TeacherCallScreen> {
   final _customPurposeController = TextEditingController();
   bool _useCustomPurpose = false;
 
+  // 🛍️ 장착한 템플릿의 강조색 - 선택된 칩/버튼처럼 "중립" 요소에만 쓴다.
+  Color get _accentColor => globalProfileTheme.value?.accent ?? AppPalette.ink;
+
   @override
   void initState() {
     super.initState();
@@ -150,7 +154,7 @@ class _TeacherCallScreenState extends State<TeacherCallScreen> {
                           style: ElevatedButton.styleFrom(
                             backgroundColor: _selectedTeacherId == null
                                 ? Colors.grey
-                                : AppPalette.ink,
+                                : _accentColor,
                             foregroundColor: AppPalette.paper,
                             padding: const EdgeInsets.symmetric(vertical: 16),
                             shape: RoundedRectangleBorder(
@@ -226,7 +230,7 @@ class _TeacherCallScreenState extends State<TeacherCallScreen> {
           width: 4,
           height: 16,
           decoration: BoxDecoration(
-            color: AppPalette.ink,
+            color: _accentColor,
             borderRadius: BorderRadius.circular(2),
           ),
         ),
@@ -318,11 +322,9 @@ class _TeacherCallScreenState extends State<TeacherCallScreen> {
       child: Container(
         padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 16),
         decoration: BoxDecoration(
-          color: selected ? AppPalette.ink : AppPalette.paper,
+          color: selected ? _accentColor : AppPalette.paper,
           borderRadius: BorderRadius.circular(28),
-          border: Border.all(
-            color: selected ? AppPalette.ink : AppPalette.sage,
-          ),
+          border: Border.all(color: selected ? _accentColor : AppPalette.sage),
         ),
         child: Text(
           label,
@@ -376,7 +378,7 @@ class _TeacherCallScreenState extends State<TeacherCallScreen> {
         final location = t['location'] ?? '교무실';
         final isSelected = _selectedTeacherId == t['teacherId'];
         final inClass = _controller.isInClassNow(name);
-        final statusColor = inClass ? AppPalette.warning : AppPalette.ink;
+        final statusColor = inClass ? AppPalette.warning : _accentColor;
 
         return GestureDetector(
           onTap: () => setState(() {
@@ -386,10 +388,10 @@ class _TeacherCallScreenState extends State<TeacherCallScreen> {
           child: Container(
             padding: const EdgeInsets.all(12),
             decoration: BoxDecoration(
-              color: isSelected ? AppPalette.ink : AppPalette.paper,
+              color: isSelected ? _accentColor : AppPalette.paper,
               borderRadius: BorderRadius.circular(20),
               border: Border.all(
-                color: isSelected ? AppPalette.ink : AppPalette.sage,
+                color: isSelected ? _accentColor : AppPalette.sage,
               ),
               boxShadow: [
                 BoxShadow(