Realign ATLAS-WP-0002 to ArchitectureBlueprint Phase 0-1 and the PRD MVP:
add context/exit-condition/sequencing, refine the three existing tasks
with acceptance criteria, and extend with three new tasks (T04 canon
mapping, T05 surface.* namespace + reuse-surface federation, T06 CI
validation). Existing task ids and state_hub_task_ids preserved.
Archive finished ATLAS-WP-0001 to workplans/archived/ with date prefix
per the workplan convention.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
