from pydantic import BaseModel


class AgentHelloUser(BaseModel):
    """Hello 用户信息：返回宿主系统传入的上下文。"""

    user_id: str
    tenant_id: str | None = None
    role: str | None = None
    source: str | None = None
    username: str | None = None
    display_name: str | None = None


class AgentHelloResponse(BaseModel):
    """Hello 响应：返回用户上下文和 Demo 能力开关。"""

    user: AgentHelloUser
    features: dict