Add Agent Browser integration documentation

[mintlify]

Added comprehensive documentation for integrating Agent Browser with Kernel via CDP connection. Includes setup instructions, configuration examples, and usage patterns for browser automation.

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Created by Mintlify agent

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Note

Introduces documentation for integrating Vercel’s Agent Browser with Kernel and links it across the docs.

• Adds integrations/agent-browser with quick start for native Kernel provider, env config options (headless, stealth, timeout, profile), profile persistence, CDP connection flow, programmatic examples, cleanup steps, and benefits/next steps
• Updates docs.json navigation to include integrations/agent-browser
• Updates integrations/overview to list and link the new Agent Browser guide

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