Parallel OMP task manager with persistent Debian workspaces #37

Remote-first concurrent OMP task machines, not another agent harness. Includes mutable Debian Dockerfile, real Docker adapter, per-task clone/branch/home/session, authenticated HTTP create/list/inspect/steer/input/abort/teardown, 90-minute idle machine cleanup without data deletion, yield-only nano wake events and assistant-only activity views. Opt-in NixOS module/image builder and deployment docs. Eight automated tests passed locally and inside Nix; real OMP18.2.11 RPC + local mock LLM verified output/yield/same-session resume. Nix module evaluation verified runtime credentials and Docker/Podman coexistence. Full OCI execution remains UNVERIFIED because reef nested Docker RUN is denied cgroup device BPF; includes no-billing three-container smoke script for intended host. No production hosts enabled or deployed.