Add Scavio integration (#531)

* Add Scavio integration

* docs: drop redundant In a Pipeline example per review

Author: scavio-ai

integrations/scavio.md

@@ -0,0 +1,91 @@
+---
+layout: integration
+name: Scavio
+description: Search the web using Scavio, a unified search API for AI agents
+authors:
+    - name: Scavio
+      socials:
+        github: scavio-ai
+repo: https://github.com/scavio-ai/haystack-scavio
+pypi: https://pypi.org/project/scavio-haystack
+type: Search & Extraction
+report_issue: https://github.com/scavio-ai/haystack-scavio/issues
+logo: /logos/scavio.png
+version: Haystack 2.0
+toc: true
+---
+
+### Table of Contents
+
+- [Overview](#overview)
+- [Installation](#installation)
+- [Usage](#usage)
+  - [ScavioWebSearch](#scaviowebsearch)
+- [License](#license)
+
+## Overview
+
+[Scavio](https://scavio.dev) is a unified search API built for AI agents. It provides real-time
+search across Google, YouTube, Amazon, Walmart, Reddit, TikTok, and more through a single API,
+returning structured results with content and source URLs.
+
+This integration provides:
+- `ScavioWebSearch`: Searches the web using Scavio's Google web search endpoint and returns results
+  as Haystack `Document` objects along with source URLs.
+
+You need a Scavio API key to use this integration. You can get one at
+[dashboard.scavio.dev](https://dashboard.scavio.dev).
+
+## Installation
+
+```bash
+pip install scavio-haystack
+```
+
+## Usage
+
+### ScavioWebSearch
+
+`ScavioWebSearch` queries the Scavio search API and returns results as Haystack `Document` objects
+containing the content snippets and metadata (title, URL). Source URLs are also returned separately.
+
+Set your API key as the `SCAVIO_API_KEY` environment variable.
+
+#### Basic Example
+
+```python
+from haystack_integrations.components.websearch.scavio import ScavioWebSearch
+
+web_search = ScavioWebSearch(top_k=5)
+
+result = web_search.run(query="What is Haystack by deepset?")
+documents = result["documents"]
+links = result["links"]
+```
+
+#### Async Support
+
+The component supports asynchronous execution via `run_async`:
+
+```python
+import asyncio
+from haystack_integrations.components.websearch.scavio import ScavioWebSearch
+
+async def main():
+    web_search = ScavioWebSearch(top_k=3)
+    result = await web_search.run_async(query="What is Haystack by deepset?")
+    print(f"Found {len(result['documents'])} documents")
+
+asyncio.run(main())
+```
+
+#### Parameters
+
+- **`api_key`**: API key for Scavio. Defaults to the `SCAVIO_API_KEY` environment variable.
+- **`top_k`**: Maximum number of results to return. Defaults to 10.
+- **`search_params`**: Additional parameters passed to the Scavio Google search endpoint. Supported
+  keys include `country_code`, `language`, `page`, `search_type`, `device`, `nfpr`, `light_request`.
+
+### License
+
+`scavio-haystack` is distributed under the terms of the [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) license.