phase29ag(p1): remap via boundary.join_inputs

docs/development/current/main/phases/phase-29ag/README.md

@@ -2,6 +2,11 @@
 
 Goal: Phase 29af で固めた boundary/layout/contract を前提に、merge 内の order SSOT をさらに一箇所へ寄せて回帰余地を減らす（仕様不変）。
 
+## Status
+
+- P0: ✅ COMPLETE
+- P1: ✅ COMPLETE
+
 ## Why now
 
 - Phase 29af で carrier order SSOT（`BoundaryCarrierLayout`）と整合契約（P4）まで揃った
@@ -9,10 +14,12 @@ Goal: Phase 29af で固めた boundary/layout/contract を前提に、merge 内
 
 ## P0: Coordinator param remap uses BoundaryCarrierLayout
 
+- ✅ COMPLETE
 - 指示書: `docs/development/current/main/phases/phase-29ag/P0-COORDINATOR-USES-BOUNDARY-CARRIER-LAYOUT-INSTRUCTIONS.md`
 
 ## P1: Eliminate ValueId(i) fallback; remap via boundary.join_inputs
 
+- ✅ COMPLETE
 - 指示書: `docs/development/current/main/phases/phase-29ag/P1-COORDINATOR-REMAPPERS-USE-JOIN_INPUTS-INSTRUCTIONS.md`
 
 ## Verification (SSOT)