docs(phase29ah): add realworld regression pack instructions

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

@@ -7,6 +7,8 @@
 - 入口: `docs/development/current/main/phases/phase-29ag/README.md`
 - 検証: `cargo build --release` / `./tools/smokes/v2/run.sh --profile quick` / `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh` PASS
 
+Next: `docs/development/current/main/phases/phase-29ah/P0-REGRESSION-PACK-INCLUDES-PHASE263-PATTERN2-INSTRUCTIONS.md`
+
 **2025-12-29: Phase 29af P5 完了** ✅
 - 目的: 29af を closeout して JoinIR 回帰確認を 1 本に収束（仕様不変）
 - 回帰パック: `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`

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

@@ -14,6 +14,9 @@ Related:
 - **Phase 29ag（✅ COMPLETE）: JoinIR merge SSOT unification**
   - 入口: `docs/development/current/main/phases/phase-29ag/README.md`
 
+- **Phase 29ah（candidate）: JoinIR regression pack expansion（real-world coverage）**
+  - 入口: `docs/development/current/main/phases/phase-29ah/README.md`
+
 - **Phase 29ae P1（✅ COMPLETE）: JoinIR Regression Pack (SSOT固定)**
   - 入口: `docs/development/current/main/phases/phase-29ae/README.md`
 

docs/development/current/main/phases/phase-29ah/P0-REGRESSION-PACK-INCLUDES-PHASE263-PATTERN2-INSTRUCTIONS.md

@@ -0,0 +1,43 @@
+# Phase 29ah P0: Regression pack includes phase263 Pattern2 — Instructions
+
+Status: Ready for execution  
+Scope: JoinIR 回帰パックに real-world Pattern2 を追加（仕様不変）
+
+## Goal
+
+JoinIR 回帰パック（`phase29ae_regression_pack_vm.sh`）に、実ログ由来の Pattern2 ケース（Phase 263）を含めて、
+最小パックだけでは拾えない regressions を早期に検知できるようにする。
+
+## Non-goals
+
+- 挙動変更（release 既定挙動の変更）
+- env var の追加
+- fixture 追加（既存の Phase 263 fixture/smoke を再利用）
+
+## Background (SSOT)
+
+- 現行の回帰パック入口: `tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`
+- Phase 263 の実ログ系 Pattern2 smoke: `tools/smokes/v2/profiles/integration/apps/phase263_pattern2_seg_realworld_min_vm.sh`
+
+## Implementation Steps
+
+1) 回帰パックに `phase263_pattern2_` を追加
+- `tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`
+  - `run_filter "pattern2_realworld" "phase263_pattern2_"` を `pattern2` の直後に追加
+
+2) docs の SSOT を更新
+- `docs/development/current/main/phases/phase-29ae/README.md`
+  - Regression pack (SSOT) に `phase263_pattern2_*` を追記
+- `docs/development/current/main/10-Now.md`
+  - JoinIR 回帰確認のSSOTが “この1本” であることは維持（記述の更新のみ）
+
+## Verification (SSOT)
+
+- `cargo build --release`
+- `./tools/smokes/v2/run.sh --profile quick`
+- `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`
+
+## Acceptance Criteria
+
+- 回帰パックが PASS のまま
+- Phase 263 の Pattern2（real-world）も回帰パックに含まれる

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

@@ -0,0 +1,13 @@
+# Phase 29ah: JoinIR regression pack expansion (real-world coverage)
+
+Goal: JoinIR の回帰パックを “最小 + 現実ログ系” に拡張し、見落としを減らす（仕様不変）。
+
+## P0: Add Pattern2 real-world case to regression pack
+
+- 指示書: `docs/development/current/main/phases/phase-29ah/P0-REGRESSION-PACK-INCLUDES-PHASE263-PATTERN2-INSTRUCTIONS.md`
+
+## Verification (SSOT)
+
+- `cargo build --release`
+- `./tools/smokes/v2/run.sh --profile quick`
+- `./tools/smokes/v2/profiles/integration/joinir/phase29ae_regression_pack_vm.sh`