refactor: add mcp source client facade

tests/wf_sources_mcp/test_sdk_adapter.py

@@ -18,6 +18,7 @@ from mcp.types import (
 )
 from pydantic import AnyUrl
 
+from wf_sources_mcp.client import McpSourceClient
 from wf_sources_mcp.connections import McpSourceConnection
 from wf_sources_mcp.sdk import BackendAdapter, McpSdkAdapter
 from wf_sources_mcp.transports import StdioSourceTransport
@@ -135,12 +136,12 @@ class _FakeSession:
         )
 
 
-class _SessionContext:
-    def __init__(self, session: _FakeSession) -> None:
-        self.session = session
+class _ClientContext:
+    def __init__(self, client: McpSourceClient) -> None:
+        self.client = client
 
-    async def __aenter__(self) -> _FakeSession:
-        return self.session
+    async def __aenter__(self) -> McpSourceClient:
+        return self.client
 
     async def __aexit__(
         self,
@@ -155,10 +156,12 @@ class _FakeAdapter(McpSdkAdapter):
     def __init__(self, session: _FakeSession) -> None:
         self.fake_session = session
 
-    def _session(self, connection: McpSourceConnection, auth: object | None):
+    def _client(self, connection: McpSourceConnection, auth: object | None):
         assert connection.id == "demo.personal"
         assert auth is None
-        return _SessionContext(self.fake_session)
+        return _ClientContext(
+            McpSourceClient(session=self.fake_session, connection=connection)
+        )
 
 
 def test_mcp_sdk_adapter_implements_backend_protocol() -> None: