Bite-sized TDD plan. M1 (runtime wiring) fully detailed across 10 tasks
after verifying the purge/reconciliation actors already exist and only
need Host wiring + a gRPC pull client + event-logger injection. M2/M3/M4
as right-sized task inventories with files, classification, and AC.
Co-located .tasks.json for executing-plans resume.
Joseph Doherty