add call transfer skeleton

api/tests/conftest.py

@@ -113,6 +113,7 @@ class MockToolModel:
     name: str
     description: str
     definition: Dict[str, Any]
+    category: str = "http_api"
 
 
 @pytest.fixture
@@ -144,6 +145,25 @@ def mock_user_config():
     return MockUserConfig()
 
 
+@pytest.fixture
+def transfer_call_tool():
+    """Create a mock transfer call tool for testing."""
+    return MockToolModel(
+        tool_uuid="transfer-uuid-001",
+        name="Transfer to Support",
+        description="Transfer the call to a support representative",
+        category="transfer_call",
+        definition={
+            "schema_version": 1,
+            "type": "transfer_call",
+            "config": {
+                "transferNumber": "+15551234567",
+                "transferMessage": "Please hold while I transfer you to a support representative.",
+            },
+        },
+    )
+
+
 @pytest.fixture
 def sample_tools():
     """Create sample mock tools for testing."""