"""业务扩展入口：每个子目录用 extension.py 的 setup(registry) 声明能力。"""
from extensions.registry import ExtensionRegistry, GatewayBinding, ResultBinding, load_extensions
from tools.registry import define_tool
from extensions.services import get_service

__all__ = ["ExtensionRegistry", "GatewayBinding", "ResultBinding", "define_tool", "load_extensions", "get_service"]