Split the V2 frontend plan into parity and enrichment phases

- Define Shape 4.0 for the client cutover and product parity
- Define Shape 4.5 for V2-native UI capabilities
- Defer existing V1 state migration to an out-of-scope Stage 5
993cbd9c6bJulius Marminge committed on 9/1/2026, 4:24:07 AM· committed by Julius Marmingeparent9d85077
1 file changedLine totals unavailable