Add meta to Client methods (#1923)

tests/issues/test_176_progress_token.py

@@ -16,13 +16,10 @@ async def test_progress_token_zero_first_call():
     mock_session.send_progress_notification = AsyncMock()
 
     # Create request context with progress token 0
-    mock_meta = MagicMock()
-    mock_meta.progress_token = 0  # This is the key test case - token is 0
-
     request_context = RequestContext(
         request_id="test-request",
         session=mock_session,
-        meta=mock_meta,
+        meta={"progress_token": 0},
         lifespan_context=None,
     )