feat: hardcode client name for Tavily

[manisrinivasan2k1]

Related Issues

• N/A

Proposed Changes:

Adds Tavily request attribution for the Haystack integration by passing client_name="haystack" when initializing both TavilyClient and AsyncTavilyClient.

This makes Tavily API requests from TavilyWebSearch identifiable as coming from the Haystack integration.

How did you test it?

• Ran Tavily unit tests:

UV_CACHE_DIR=/private/tmp/uv-cache uv run --project . --with pytest --with pytest-asyncio python -m pytest -m "not integration" tests/test_tavily_websearch.py

Result: 15 passed, 2 deselected

• Ran Ruff on the touched files:

UV_CACHE_DIR=/private/tmp/uv-cache uv run --project . --with ruff ruff check integrations/tavily/src/haystack_integrations/components/websearch/tavily/tavily_websearch.py integrations/tavily/tests/test_tavily_websearch.py

Result: All checks passed

• Manually verified with a live Tavily request and confirmed server-side attribution showed CLIENT_NAME = haystack.

Notes for the reviewer

The change intentionally uses the Tavily Python SDK’s client_name parameter instead of manually setting HTTP headers.

Checklist

• I have read the [contributors guidelines](https://github.com/deepset-ai/haystack-core-integrations/blob/main/CONTRIBUTING.md) and the [code of conduct](https://github.com/deepset-ai/haystack-core-integrations/blob/main/CODE_OF_CONDUCT.md)
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the [conventional commit types](https://www.conventionalcommits.org/en/v1.0.0/) for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.

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All committers have signed the CLA.

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Coverage report (tavily)

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
integrations/tavily/src/haystack_integrations/components/websearch/tavily
tavily_websearch.py
Project Total

This report was generated by python-coverage-comment-action

[sjrl]

Thanks for the contribution and looks good!