refactor: move mcp auth record ownership

src/wf_mcp/sdk/adapter.py

@@ -17,9 +17,9 @@ from mcp.types import (
 )
 from pydantic import AnyUrl
 
-from ..auth import mcp_auth_env, mcp_auth_headers
+from ..auth import AuthRecord, mcp_auth_env, mcp_auth_headers
 from ..capabilities import DiscoveredPrompt, DiscoveredResource, DiscoveredTool
-from ..models import AuthRecord, ConnectionConfig
+from ..models import ConnectionConfig
 from .base import BackendAdapter, ToolCallResult
 from .converters import (
     prompt_to_discovered,

src/wf_mcp/sdk/base.py

@@ -3,8 +3,9 @@ from __future__ import annotations
 from dataclasses import dataclass, field
 from typing import Any, Protocol
 
+from ..auth import AuthRecord
 from ..capabilities import DiscoveredPrompt, DiscoveredResource, DiscoveredTool
-from ..models import AuthRecord, ConnectionConfig
+from ..models import ConnectionConfig
 
 
 @dataclass(slots=True)