Filtering disabled shared servers out of `.mcp.json` (#9457) collapsed
"present but disabled" and "absent" into the same output, so a server
set
`enabled = false` for OpenCode could no longer remain present in Claude
Code. `.mcp.json` has no per-server `enabled` field, but settings.json
does via `disabledMcpjsonServers`.
Keep disabled servers in `.mcp.json` and list them under
`disabledMcpjsonServers` (merged with any user-set value). This honors
the
disabled intent without dropping the server, and covers both shared and
Claude Code-native servers.
