Create a concise, copy-pasteable walkthrough for connecting one supported external MCP client to a self-hosted Deft instance.
Acceptance criteria:
- start from Settings > MCP Access
- show the exact URL/auth fields
- read workspace context and perform one governed write
- include revoke and receipt verification
- avoid promising unsupported clients or OAuth modes
Create a concise, copy-pasteable walkthrough for connecting one supported external MCP client to a self-hosted Deft instance.
Acceptance criteria: