web: migrate health notifications to js_interop; add browser hook

- Replace dart:js with package:js in health_check_service_web.dart\n- Implement showHealthCheckNotification in web/index.html\n- Pin js dependency to ^0.6.7 for flutter_secure_storage_web compatibility

auth: harden AuthInterceptor + tests

- Allow overrideAuthRepository injection for testing\n- Normalize imports to package: paths\n- Add unit test covering token attach, 401→refresh→retry, and failure path\n- Add integration test skeleton gated by env vars

ui/data: map User.companyName to list column

- Add companyName to domain User\n- Map UserDto.company?.name\n- Render companyName in user_list

cleanup: remove legacy equipment table + unused code; minor warnings

- Remove _buildFlexibleTable and unused helpers\n- Remove unused zipcode details and cache retry constant\n- Fix null-aware and non-null assertions\n- Address child-last warnings in administrator dialog

docs: update AGENTS.md session context

lib/screens/zipcode/components/zipcode_table.dart

@@ -290,142 +290,5 @@ class ZipcodeTable extends StatelessWidget {
     );
   }
 
-  void _showAddressDetails(BuildContext context, ZipcodeDto zipcode) {
-    showDialog(
-      context: context,
-      builder: (context) => ShadDialog(
-        title: const Text('우편번호 상세정보'),
-        description: const Text('선택한 우편번호의 상세 정보입니다'),
-        child: Container(
-          width: 400,
-          padding: const EdgeInsets.all(16),
-          child: Column(
-            mainAxisSize: MainAxisSize.min,
-            crossAxisAlignment: CrossAxisAlignment.start,
-            children: [
-              // 우편번호
-              _buildInfoRow(
-                context,
-                '우편번호', 
-                zipcode.zipcode.toString().padLeft(5, '0'),
-                Icons.local_post_office,
-              ),
-              const SizedBox(height: 12),
-              
-              // 시도
-              _buildInfoRow(
-                context,
-                '시도', 
-                zipcode.sido,
-                Icons.location_city,
-              ),
-              const SizedBox(height: 12),
-              
-              // 구/군
-              _buildInfoRow(
-                context,
-                '구/군', 
-                zipcode.gu,
-                Icons.location_on,
-              ),
-              const SizedBox(height: 12),
-              
-              // 상세주소
-              _buildInfoRow(
-                context,
-                '상세주소', 
-                zipcode.etc,
-                Icons.home,
-              ),
-              const SizedBox(height: 12),
-              
-              // 전체주소
-              _buildInfoRow(
-                context,
-                '전체주소', 
-                zipcode.fullAddress,
-                Icons.place,
-              ),
-              const SizedBox(height: 20),
-              
-              // 액션 버튼
-              Row(
-                children: [
-                  Expanded(
-                    child: ShadButton.outline(
-                      onPressed: () => _copyToClipboard(
-                        context, 
-                        zipcode.fullAddress, 
-                        '전체주소'
-                      ),
-                      child: const Row(
-                        mainAxisAlignment: MainAxisAlignment.center,
-                        children: [
-                          Icon(Icons.copy, size: 16),
-                          SizedBox(width: 6),
-                          Text('주소 복사'),
-                        ],
-                      ),
-                    ),
-                  ),
-                  const SizedBox(width: 8),
-                  Expanded(
-                    child: ShadButton(
-                      onPressed: () {
-                        Navigator.of(context).pop();
-                        onSelect(zipcode);
-                      },
-                      child: const Row(
-                        mainAxisAlignment: MainAxisAlignment.center,
-                        children: [
-                          Icon(Icons.check, size: 16),
-                          SizedBox(width: 6),
-                          Text('선택'),
-                        ],
-                      ),
-                    ),
-                  ),
-                ],
-              ),
-            ],
-          ),
-        ),
-      ),
-    );
-  }
-
-  Widget _buildInfoRow(BuildContext context, String label, String value, IconData icon) {
-    final theme = ShadTheme.of(context);
-    
-    return Row(
-      crossAxisAlignment: CrossAxisAlignment.start,
-      children: [
-        Icon(
-          icon,
-          size: 16,
-          color: theme.colorScheme.mutedForeground,
-        ),
-        const SizedBox(width: 8),
-        SizedBox(
-          width: 60,
-          child: Text(
-            label,
-            style: theme.textTheme.small.copyWith(
-              fontWeight: FontWeight.w600,
-              color: theme.colorScheme.mutedForeground,
-            ),
-          ),
-        ),
-        const SizedBox(width: 8),
-        Expanded(
-          child: Text(
-            value,
-            style: theme.textTheme.small.copyWith(
-              fontWeight: FontWeight.w500,
-            ),
-          ),
-        ),
-      ],
-    );
-  }
-}
+  
+}