corpus-composer

Layer 2 of the bible-mcp synthesis pipeline — composes a polished, arc-driven piece from a Layer 0 corpus-survey artifact, welding cross-disciplinary material around the survey's spine. Use this whenever a survey artifact exists and the user wants the composed piece ("compose living water", "run the composer on the wilderness survey", "layer 2 on this", "write the piece"), or when the user asks for an essay/piece on…