phase29ao(p16): use block_params for pattern5 exit join

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

@@ -2,8 +2,8 @@
 
 ## Current Focus: Phase 29ao（CorePlan composition）
 
-Next: Phase 29ao P16（ValueJoin exit 実使用: Pattern5 after join）
-指示書: `docs/development/current/main/phases/phase-29ao/P16-VALUEJOIN-REAL-USAGE-PATTERN5-EXITJOIN-INSTRUCTIONS.md`
+Next: Phase 29ao P17（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`
@@ -88,6 +88,11 @@ Next: Phase 29ao P16（ValueJoin exit 実使用: Pattern5 after join）
 - 変更: `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/P15-REGRESSION-PACK-INCLUDE-PATTERN3-INSTRUCTIONS.md`
 - 検証: `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh` / `./tools/smokes/v2/run.sh --profile quick`
 
+**2025-12-30: Phase 29ao P16 完了** ✅
+- 目的: Pattern5 Infinite Early-Exit の after join を `Frag.block_params + EdgeArgs` に移行
+- 変更: `src/mir/builder/control_flow/plan/normalizer/pattern5_infinite_early_exit.rs` / `tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh` / `docs/development/current/main/phases/phase-29ae/README.md`
+- 検証: `cargo test --release -p nyash-rust --lib` / `cargo build --release` / `./tools/smokes/v2/run.sh --profile quick` / `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`
+
 **2025-12-29: Phase 29an P15 完了** ✅
 - 目的: P0–P14 の成果を closeout 形式でまとめ、次フェーズ（Phase 29ao）入口を固定
 - 変更: `docs/development/current/main/phases/phase-29an/README.md` / `docs/development/current/main/10-Now.md` / `docs/development/current/main/30-Backlog.md` / `CURRENT_TASK.md`