Records the operator-supplied brief for an --engine {swarm|deep-research}
choice on /trekresearch's external phase (swarm stays default; deep-research
delegates the external phase to the built-in workflow with auto-fallback).
Backlog item only — not implemented. Lives beside the work (docs/), tracked.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BJQYC5vpkJWxndS55vQQZ6
