fix: truncate transaction and vertex messages (#7893)

* add pyinstrument and fastapi wrapper

* Truncate vertex build responses

* Truncate vertex response and transactions

* [autofix.ci] apply automated fixes

* Update test for vertex response structure to reflect new truncation logic

* Refactor profiling middleware to use environment variable for configuration

* Update test for vertex response structure to correct truncation logic

* move pyinstrument to dev dependencies

* Update serialization test to include max_items parameter for list truncation

* remove profiling from this PR, fix constants

* [autofix.ci] apply automated fixes

* Add asyncio configuration options to pyproject.toml

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org>

src/backend/tests/unit/api/v1/test_schemas.py

@@ -63,7 +63,7 @@ def test_vertex_response_structure_when_truncate_applies():
     ("size", "expected"),
     [
         (0, 0),
-        (42, 42),
+        (8, 8),
         (MAX_ITEMS_LENGTH, MAX_ITEMS_LENGTH),
         (MAX_ITEMS_LENGTH + 1000, MAX_ITEMS_LENGTH + 1),
         (MAX_ITEMS_LENGTH + 2000, MAX_ITEMS_LENGTH + 1),

src/backend/tests/unit/serialization/test_serialization.py

@@ -92,7 +92,7 @@ class TestSerializationHypothesis:
     @settings(max_examples=100)
     @given(lst=list_strategy)
     def test_list_truncation(self, lst: list) -> None:
-        result: list = serialize(lst)
+        result: list = serialize(lst, max_items=MAX_ITEMS_LENGTH)
         if len(lst) > MAX_ITEMS_LENGTH:
             assert len(result) == MAX_ITEMS_LENGTH + 1
             assert f"... [truncated {len(lst) - MAX_ITEMS_LENGTH} items]" in result