Duo Workflow: Backend for MCP support settings

Igor Drozdovrequested to merge
id-duo-workflow-mcp-support-backend into master

What does this MR do and why?

This change adds support for MCP in Duo Workflow on the backend.

Duo Workflow: UI for MCP support settings (!193051 - merged) adds UI for changing duo_workflow_mcp_enabled value. This MR provides the backend for it.

UI for MCP support settings. It's related to MCP support for agentic chat: Model Context Protocol Support for Agentic Chat (#546188 - closed) and https://gitlab.com/gitlab-org/gitlab/-/issues/519938+.

Edited by Sebastian Rehm

Merge request reports