Enhancement Request: MCP Write Access to Company Custom Fields

Currently, MCP can access Company data, but it does not support updating Company custom fields.

It would be helpful to add support for updating Company custom fields through MCP, with admins able to control which fields are editable.

This would enable use cases such as updating account attributes and other custom Company data directly from MCP-driven workflows, while allowing administrators to manage field access as needed.

We have a current use case that requires updating Company custom fields through MCP, and the lack of write access is a blocker for the project we're working on.

This enhancement would reduce the need for custom automation when the desired outcome is simply to update approved Company custom fields.