docs: Phase 190-impl-D complete - NumberAccumulation PHI wiring fixed

- Fixed ValueId collision between body-local and carrier params
- Added ExitLine contract verifier (debug assertions)
- Updated test files to use Main box
- E2E verified: atoi→12, parse_number→123

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/development/current/main/phase190-number-update-design.md

@@ -970,4 +970,13 @@ Assignment {
 ## Revision History
 
 - **2025-12-09**: Initial design (Section 1-12)
-- **TBD**: Implementation review updates
+- **2025-12-09**: Phase 190-impl 完了
+  - Phase 190-impl-A: LoopUpdateAnalyzer に NumberAccumulation 検出実装
+  - Phase 190-impl-B: CarrierUpdateLowerer で 2-instruction emission 実装
+  - Phase 190-impl-C: Pattern2 can_lower ホワイトリスト更新
+  - Phase 190-impl-D: E2E 検証成功 + PHI 配線修正
+    - **バグ発見**: body-local と carrier の ValueId 衝突問題
+    - **修正**: `body_local_start_offset = env.len() + carrier_info.carriers.len()` で安全な ValueId 空間分割
+    - **E2E 結果**: `phase190_atoi_impl.hako` → 12 ✅、`phase190_parse_number_impl.hako` → 123 ✅
+    - **制約**: body-local 変数 assignment は JoinIR 未対応（Phase 186 残タスク）
+  - ExitLine contract Verifier 追加（`#[cfg(debug_assertions)]`）