feat: [hr] 사업소득자관리 worker_type 컬럼 추가

- tenant_user_profiles 테이블에 worker_type 컬럼 추가 (employee/business_income)
- TenantUserProfile 모델 fillable에 worker_type 추가

app/Models/Tenants/TenantUserProfile.php

@@ -44,6 +44,7 @@ class TenantUserProfile extends Model
         'employee_status',
         'manager_user_id',
         'json_extra',
+        'worker_type',
         'profile_photo_path',
         'display_name',
     ];