phase29ao(p21): tighten pattern1 subset to step-only body

docs/development/current/main/10-Now.md

@@ -2,12 +2,17 @@
 
 ## Current Focus: Phase 29ao（CorePlan composition）
 
-Next: Phase 29ao P21（Pattern1 subset: body is step-only）
-指示書: `docs/development/current/main/phases/phase-29ao/P21-PATTERN1-SUBSET-BODY-IS-STEP-ONLY-INSTRUCTIONS.md`
+Next: Phase 29ao P22（TBD）
+指示書: TBD
 運用ルール: integration filter で phase143_* は回さない（JoinIR 回帰は phase29ae pack のみ）
 運用ルール: phase286_pattern9_* は legacy pack (SKIP) を使う
 移行道筋 SSOT: `docs/development/current/main/design/coreplan-migration-roadmap-ssot.md`
 
+**2025-12-30: Phase 29ao P21 完了** ✅
+- 目的: Pattern1 subset を body=step のみに引き締め、strict/dev shadow adopt の誤マッチを遮断
+- 変更: `src/mir/builder/control_flow/plan/policies/pattern1_subset_policy.rs` / `src/mir/builder/control_flow/plan/facts/pattern1_simplewhile_facts.rs` / `src/mir/builder/control_flow/plan/extractors/pattern1.rs` / `apps/tests/phase29ao_pattern1_subset_reject_extra_stmt.hako` / `tools/smokes/v2/profiles/integration/joinir/phase29ao_pattern1_subset_reject_extra_stmt_vm.sh` / `tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh` / `docs/development/current/main/phases/phase-29ae/README.md` / `docs/development/current/main/phases/phase-29ao/README.md` / `docs/development/current/main/10-Now.md` / `docs/development/current/main/30-Backlog.md` / `CURRENT_TASK.md`
+- 検証: `cargo build --release` / `./tools/smokes/v2/run.sh --profile quick` / `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`
+
 **2025-12-30: Phase 29ao P20 完了** ✅
 - 目的: CoreLoop の ExitMap/Cleanup/ValueJoin 合成規約を SSOT 化（docs-only）
 - 変更: `docs/development/current/main/design/coreloop-exitmap-composition-ssot.md` / `docs/development/current/main/design/planfrag-ssot-registry.md` / `docs/development/current/main/phases/phase-29ao/README.md` / `docs/development/current/main/10-Now.md` / `docs/development/current/main/30-Backlog.md` / `CURRENT_TASK.md`

docs/development/current/main/30-Backlog.md

@@ -15,8 +15,8 @@ Related:
 
 - **Phase 29ao（active）: CorePlan composition from Skeleton/Feature**
   - 入口: `docs/development/current/main/phases/phase-29ao/README.md`
-  - 状況: P0–P20 ✅ 完了 / Next: P21（Pattern1 subset hardening）
-  - Next 指示書: `docs/development/current/main/phases/phase-29ao/P21-PATTERN1-SUBSET-BODY-IS-STEP-ONLY-INSTRUCTIONS.md`
+  - 状況: P0–P21 ✅ 完了 / Next: P22（TBD）
+  - Next 指示書: TBD
 
 - **Phase 29af（✅ COMPLETE）: Boundary hygiene / regression entrypoint / carrier layout SSOT**
   - 入口: `docs/development/current/main/phases/phase-29af/README.md`

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

@@ -8,6 +8,7 @@ Goal: JoinIR の最小回帰セットを SSOT として固定する。
 - Pattern2 (real-world): `phase263_pattern2_*`
 - Pattern3 (If‑Phi, VM): `phase118_pattern3_if_sum_vm`
 - Pattern1 (strict shadow, VM): `phase29ao_pattern1_strict_shadow_vm`
+- Pattern1 (subset reject, VM): `phase29ao_pattern1_subset_reject_extra_stmt_vm`
 - Pattern5 (Break, VM): `phase286_pattern5_break_vm`
 - Pattern6: `phase29ab_pattern6_*`
 - Pattern7: `phase29ab_pattern7_*`

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

@@ -127,7 +127,11 @@ Gate（SSOT）:
 - 指示書: `docs/development/current/main/phases/phase-29ao/P20-CORELOOP-EXITMAP-COMPOSITION-SSOT-INSTRUCTIONS.md`
 - ねらい: Loop skeleton に対する ExitMap/Cleanup/ValueJoin の合成規約を SSOT として固定
 
+## P21: Pattern1 subset body is step-only（shadow adopt safety）✅
+
+- 指示書: `docs/development/current/main/phases/phase-29ao/P21-PATTERN1-SUBSET-BODY-IS-STEP-ONLY-INSTRUCTIONS.md`
+- ねらい: Pattern1 subset を body=step のみに引き締め、strict/dev shadow adopt の誤マッチを遮断
+
 ## Next（planned）
 
-- P21: Pattern1 subset “body is step-only” hardening
-  - 指示書: `docs/development/current/main/phases/phase-29ao/P21-PATTERN1-SUBSET-BODY-IS-STEP-ONLY-INSTRUCTIONS.md`
+- P22: TBD