사용자 테넌트 소속 데이터 정리

userfront/lib/core/services/auth_proxy_service.dart

@@ -985,12 +985,12 @@ class AuthProxyService {
 
   static Future<Map<String, dynamic>> checkLoginIDAvailability(
     String loginId, {
-    String? companyCode,
+    String? tenantSlug,
   }) async {
     final url = Uri.parse('$_baseUrl/api/v1/auth/signup/check-login-id');
     final bodyData = {'loginId': loginId};
-    if (companyCode != null && companyCode.isNotEmpty) {
-      bodyData['companyCode'] = companyCode;
+    if (tenantSlug != null && tenantSlug.isNotEmpty) {
+      bodyData['tenantSlug'] = tenantSlug;
     }
     final response = await http.post(
       url,
@@ -1074,7 +1074,7 @@ class AuthProxyService {
     required String name,
     required String phone,
     required String affiliationType,
-    String? companyCode,
+    String? tenantSlug,
     required String department,
     required bool termsAccepted,
   }) async {
@@ -1089,7 +1089,7 @@ class AuthProxyService {
         'name': name,
         'phone': phone,
         'affiliationType': affiliationType,
-        'companyCode': companyCode,
+        'tenantSlug': tenantSlug,
         'department': department,
         'termsAccepted': termsAccepted,
       }),

userfront/lib/features/auth/presentation/signup_screen.dart

@@ -333,7 +333,7 @@ class _SignupScreenState extends State<SignupScreen> {
         name: _nameController.text.trim(),
         phone: _phoneController.text.trim(),
         affiliationType: _affiliationType,
-        companyCode: _affiliationType == 'AFFILIATE' ? _companyCode : null,
+        tenantSlug: _affiliationType == 'AFFILIATE' ? _companyCode : null,
         department: _deptController.text.trim(),
         termsAccepted: true,
       );