AGENTS.md was carrying the read-order + routing table inline; moved that to an
independent machine-readable docmap.yaml (read_order, routing, design_docs,
organs with build cmds, invariants, smoke). AGENTS.md slims to a prose signpost
(54->28 lines) pointing at it; CLAUDE.md docs-map lists it. YAML validated.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015hmgREHNsxYCuim33yUF2c
