feat: 角色协议(勾选+阅读秒数+卡点)与冻结说明按身份返回

新增协议表/签署留痕、后台与小程序 API；去掉手写依赖；支持抢单/注册/提现等卡点配置。冻结问号文案按角色字典下发。

Co-authored-by: Cursor <cursoragent@cursor.com>

users/views/__init__.py

@@ -68,6 +68,12 @@ from .fund_freeze_mp import (
     FundFreezeMyLedgerView,
 )
 
+from .role_agreement_mp import (
+    RoleAgreementCurrentView,
+    RoleAgreementMineView,
+    RoleAgreementSignView,
+)
+
 from .admin import (
     AdGetOrderList,
     AdGetOrderTypes,