Approved design for splitting a WO's parts across multiple racks + grouping
multiple WOs on one rack, plus the Phase 1 implementation plan (split +
independent movement). Phases 2 (grouping + Station screen) and 3 (Plant
Kanban rollup) are noted for follow-up plans.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
