The mcp SDK's StdioServerParameters does not pass the parent
process's environment to the spawned server by default, so env
vars set on the CLI process (notably MARCHWARDEN_MODEL) were
silently dropped on the way to the researcher.
Pass env=os.environ.copy() to StdioServerParameters so the server
sees the same environment as the CLI. Also update scripts/docker-test.sh
to forward MARCHWARDEN_MODEL into the container and to detect a
non-TTY parent so non-interactive `ask` invocations don't fail with
"the input device is not a TTY".
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
