fix: add missing type field to node configurations in integration tests

- Added 'type' field to all node data configurations in test files
- Fixed test_code.py: added 'type: code' to all code node configs
- Fixed test_http.py: added 'type: http-request' to all HTTP node configs
- Fixed test_template_transform.py: added 'type: template-transform' to template node config
- Fixed test_tool.py: added 'type: tool' to all tool node configs
- Added setup_code_executor_mock fixture to test_execute_code_scientific_notation

These changes fix the ValueError: 'Node X missing or invalid type information' errors
that were occurring due to changes in the node factory validation requirements.

api/tests/integration_tests/workflow/nodes/test_tool.py

@@ -70,6 +70,7 @@ def test_tool_variable_invoke():
         config={
             "id": "1",
             "data": {
+                "type": "tool",
                 "title": "a",
                 "desc": "a",
                 "provider_id": "time",
@@ -101,6 +102,7 @@ def test_tool_mixed_invoke():
         config={
             "id": "1",
             "data": {
+                "type": "tool",
                 "title": "a",
                 "desc": "a",
                 "provider_id": "time",