Add Clarvia AEO score badge to README

[digitamaz]

Hi! I'm the maintainer of Clarvia — an AEO (Agent Experience Optimization) scoring platform for MCP servers.

We automatically scan and score MCP servers for quality, discoverability, and agent-readiness. Your server mcp-server-browserbase has been analyzed and received an AEO score.

Why add this badge?

The AEO badge shows developers and AI agents at a glance that your server is production-quality. It links to your full score breakdown on Clarvia, where you can see improvement recommendations.

You can add the badge with:

[![Clarvia AEO Score](https://clarvia.art/api/badge/mcp-server-browserbase)](https://clarvia.art/tools/mcp-server-browserbase)

Which renders as:

Feel free to close if this isn't relevant for your project. Happy to answer any questions about the scoring methodology!