diff --git a/packages/application/auth/__init__.py b/packages/application/auth/__init__.py
index cd976fe79..2e1cb7054 100644
--- a/packages/application/auth/__init__.py
+++ b/packages/application/auth/__init__.py
@@ -1,4 +1,4 @@
-"""认证相关 Use Cases"""
+"""认证相关 Use Cases 和委托处理器"""
 
 from packages.application.auth.login_use_case import (
     LoginRequest,
@@ -22,8 +22,19 @@ from packages.application.auth.register_user_use_case import (
     VerifyEmailRequest,
     VerifyEmailUseCase,
 )
+from packages.application.auth.jwt_handler import (
+    JWTHandler,
+    configure_jwt_handler,
+    get_jwt_handler,
+)
+from packages.application.auth.password_handler import (
+    PasswordHandler,
+    configure_password_handler,
+    get_password_handler,
+)
 
 __all__ = [
+    # Use Cases
     "RegisterUserUseCase",
     "RegisterUserRequest",
     "RegisterUserResponse",
@@ -40,4 +51,11 @@ __all__ = [
     "RequestPasswordResetRequest",
     "ResetPasswordUseCase",
     "ResetPasswordRequest",
+    # Handlers (委托层，隔离 Domain 层对 jwt/bcrypt 的依赖)
+    "JWTHandler",
+    "configure_jwt_handler",
+    "get_jwt_handler",
+    "PasswordHandler",
+    "configure_password_handler",
+    "get_password_handler",
 ]