feat: Needle Search Tool With Template (#6648)

* feat: Needle Search Tool With Templte

* lint

* lint

* lint

* lint

* refactor: Use Langflow Agent instead of CrewAI Agent

* techdebt: adjust Needle component to use tool mode and remove tool component

* lint

* lint

* Update Invoice Summarizer.json

* Update Invoice Summarizer.json

* update to the component

* refactor: Use Needle icon svg

* make format

* component updates

* update with latest agent component

* updated a missing connection when updating the agent component

* update template

---------

Co-authored-by: Edwin Jose <edwin.jose@datastax.com>

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

@@ -6,6 +6,7 @@ from langflow.api.v1.schemas import ResultDataResponse, VertexBuildResponse
 from langflow.schema.schema import OutputValue
 from langflow.serialization import serialize
 from langflow.services.tracing.schema import Log
+
 from pydantic import BaseModel
 
 # Use a smaller test size for hypothesis

src/backend/tests/unit/base/tools/test_component_toolkit.py

@@ -8,6 +8,7 @@ from langflow.components.outputs.chat import ChatOutput
 from langflow.components.tools.calculator import CalculatorToolComponent
 from langflow.graph import Graph
 from langflow.schema.data import Data
+
 from pydantic import BaseModel
 
 

src/backend/tests/unit/base/tools/test_toolmodemixin.py

@@ -21,6 +21,7 @@ from langflow.io import (
     TableInput,
 )
 from langflow.schema import Data
+
 from pydantic import BaseModel
 
 

src/backend/tests/unit/components/helpers/test_structured_output_component.py

@@ -5,8 +5,8 @@ import pytest
 from langflow.components.helpers.structured_output import StructuredOutputComponent
 from langflow.helpers.base_model import build_model_from_schema
 from langflow.inputs.inputs import TableInput
-from pydantic import BaseModel
 
+from pydantic import BaseModel
 from tests.base import ComponentTestBaseWithoutClient
 from tests.unit.mock_language_model import MockLanguageModel
 

src/backend/tests/unit/graph/graph/state/test_state_model.py

@@ -5,6 +5,7 @@ from langflow.graph import Graph
 from langflow.graph.graph.constants import Finish
 from langflow.graph.state.model import create_state_model
 from langflow.template.field.base import UNDEFINED
+
 from pydantic import Field
 
 

src/backend/tests/unit/helpers/test_base_model_from_schema.py

@@ -4,9 +4,10 @@ from typing import Any
 
 import pytest
 from langflow.helpers.base_model import build_model_from_schema
-from pydantic import BaseModel
 from pydantic_core import PydanticUndefined
 
+from pydantic import BaseModel
+
 
 class TestBuildModelFromSchema:
     # Successfully creates a Pydantic model from a valid schema

src/backend/tests/unit/inputs/test_inputs.py

@@ -23,6 +23,7 @@ from langflow.inputs.inputs import (
 )
 from langflow.inputs.utils import instantiate_input
 from langflow.schema.message import Message
+
 from pydantic import ValidationError
 
 

src/backend/tests/unit/mock_language_model.py

@@ -1,9 +1,10 @@
 from unittest.mock import MagicMock
 
 from langchain_core.language_models import BaseLanguageModel
-from pydantic import BaseModel, Field
 from typing_extensions import override
 
+from pydantic import BaseModel, Field
+
 
 class MockLanguageModel(BaseLanguageModel, BaseModel):
     """A mock language model for testing purposes."""

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

@@ -9,6 +9,7 @@ from hypothesis import strategies as st
 from langchain_core.documents import Document
 from langflow.serialization.constants import MAX_ITEMS_LENGTH, MAX_TEXT_LENGTH
 from langflow.serialization.serialization import serialize, serialize_or_str
+
 from pydantic import BaseModel as PydanticBaseModel
 from pydantic.v1 import BaseModel as PydanticV1BaseModel
 

src/backend/tests/unit/test_schema.py

@@ -7,6 +7,7 @@ from langflow.schema.data import Data
 from langflow.template import Input, Output
 from langflow.template.field.base import UNDEFINED
 from langflow.type_extraction.type_extraction import post_process_type
+
 from pydantic import ValidationError
 
 

src/backend/tests/unit/test_template.py

@@ -2,6 +2,7 @@ import importlib
 
 import pytest
 from langflow.utils.util import build_template_from_function, get_base_classes, get_default_factory
+
 from pydantic import BaseModel