feat: add Tzafon integration with a Wikipedia search example and corresponding documentation

[eddieogola]

This pull request adds a new integration for Tzafon, enabling AgentKit agents to autonomously browse the web using managed cloud browsers. It introduces comprehensive documentation, an example project for a Wikipedia search agent powered by Tzafon, and updates the documentation structure and overview to reflect the new integration.

Tzafon Integration and Example Project:

• Added a new integration guide for Tzafon in docs/integrations/tzafon.mdx, detailing how to use AgentKit tools with Tzafon, including installation, setup, and a step-by-step example.
• Introduced a complete example project under examples/wikipedia-search-tzafon/ demonstrating an AI-powered Wikipedia search agent using AgentKit and Tzafon, including sample code (src/main.ts), environment configuration, dependencies, and usage instructions. [1] [2] [3] [4] [5]

Documentation and Overview Updates:

• Updated the documentation navigation in docs/docs.json to include the Tzafon integration page and made formatting improvements to the page lists. [1] [2] [3] [4] [5]
• Added Tzafon to the integrations list in the main overview page (docs/overview.mdx).

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Latest commit: 2f177a4

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