MCP Gatekeeper only sees the first 60 tools provided by the remote MCP server?

Using the cloud deployment of CloudlfareOS, I was trying to connect [Fibery's MCP](https://the.fibery.io/@public/User_Guide/Guide/Fibery-MCP-Server-401) but the Gadget only sees 60 of the 80 tools the MCP provides. I connected the same MCP to Claude and was able to confirm all 80 tools were exposed correctly.

Edit: Confirmed was able to fix this locally by adjusting `MAX_CATALOG_BYTES`. This should be more gracefully handled and notified to the user. Exceeding `MAX_CATALOG_BYTES` also broke the UI to select specific tools.

Start by tracing the MAX_CATALOG_BYTES handling in the MCP Gatekeeper and then inspect the UI flow for selecting specific tools. Reproduce the Fibery MCP connection with more than 60 tools; done means the limit is handled gracefully, the user is notified, and tool selection no longer breaks.

Written by the indexing model from the issue text.