feat: Needle Search Tool With Template

[JANHMS]

Overview

Adding Needle as a Tool to Langflow to enable dynamic integration with other tools e.g. CrewAI. While the existing Needle Bundle provides comprehensive but static search across data sources, this new component offers a flexible tool-based approach, complementing the current functionality.

Dependency

Adding top_k as a param to the Langchain integration:
langchain-ai/langchain#29821

Invoice Summarizer Template using Langflow Agent

[autofix-ci]

Hi! I'm autofix.ci, a bot that automatically fixes trivial issues such as code formatting in pull requests.

I would like to apply some automated changes to this pull request, but it looks like I don't have the necessary permissions to do so. To get this pull request into a mergeable state, please do one of the following two things:

1. Allow edits by maintainers for your pull request, and then re-trigger CI (for example by pushing a new commit).
2. Manually fix the issues identified for your pull request (see the GitHub Actions output for details on what I would like to change).

[JANHMS]

@ogabrielluiz

[codspeed-hq]

CodSpeed Performance Report

Merging #6648 will degrade performances by 18.47%

_{Comparing needle-ai:main (87090eb) with main (6017677)}

Summary

❌ 1 regressions
✅ 18 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
❌	test_cancel_nonexistent_build	7.9 ms	9.6 ms	-18.47%

[JANHMS]

Made the changes in the template using the Langflow agent instead of CrewAi. @edwinjosechittilappilly

[edwinjosechittilappilly]

Good Work!
can we utilise the existing component in tool mode wouldn't that solve the issue do we need a new component for it?

I have opened a PR to add tool mode in Needle Component.
I hope that helps.

[JANHMS]

@edwinjosechittilappilly I made the changes here. I can not push to the PR that you opened, since I am only allowed to use forked PRs as a contributor. I will finish this up here now with lint issues etc. Should be ready to be merged today.

[edwinjosechittilappilly]

Can you make the PR editable by the maintainer?

[JANHMS]

@edwinjosechittilappilly

Do you think you should work now for you? I could not find the button, which they described here:
https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork#enabling-repository-maintainer-permissions-on-existing-pull-requests

But this should do the same.