Self-contained pickup doc for the next session. Combines:
- State summary (what's done, what's open, where we are in M1.5)
- Direction (Option B chosen 2026-05-24 — A6.P4 full then #100)
- Slice 1 pre-flight (Q1 + Q2 to resolve before coding)
- Slice 1 / 2 / 3 implementation plans with commit shapes
- #100 follow-up plan
- Decomp anchors reference card (8 line citations)
- Apparatus inventory (don't rebuild what's already there)
- CLAUDE.md rules that apply
- Copy-paste pickup prompt at the bottom
Cross-references all the canonical artifacts from this saga:
- docs/superpowers/specs/2026-05-24-phase-a6-p4-retail-shadow-architecture.md
- docs/research/2026-05-23-a6-p3-issue98-comparison-harness-findings.md
- docs/ISSUES.md (#98 DONE, #99 OPEN, #100 OPEN)
- memory: feedback_retail_per_cell_shadow_list.md,
feedback_apparatus_for_physics_bugs.md
- commits b3ce505 + b55ae83 (don't redo)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
