docs: Phase 131 P2 DirectValue exit reconnection complete

Update completion status for Phase 131 P2:
- CURRENT_TASK.md: Note WSL restart resolved EXDEV issue
- 10-Now.md: Add Phase 131 P2 completion entry
- phase-131/README.md: Document P1.5 and P2 deliverables

Phase 131 Status: DONE ✅
- loop(true) break-once executes correctly
- Exit values propagate through DirectValue mode
- VM + LLVM EXE parity verified

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

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

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

@@ -35,13 +35,18 @@
 - Unit tests: 1155/1155 PASS
 - 入口: `docs/development/current/main/phases/phase-129/README.md`
 
-## Next: Phase 131（loop(true) break-once Normalized support）
+## 2025-12-18：Phase 131 P2 完了 ✅
 
-**Phase 131 P0: loop(true) break-once Normalized support（dev-only）**
-- 目的: Loop capability を Normalized shadow に追加し、最小ループ（`loop(true) { <assign>* ; break }`）を通す
+**Phase 131: loop(true) break-once Normalized（dev-only）**
+- 目的: Normalized shadow の最小ループを VM/LLVM EXE 両方で動かし、更新値が外に見えることまで固定
+- 仕様:
+  - `loop(true) { x = 1; break }; return x` は exit code `1`
+  - DirectValue mode（PHI-free）で exit 値を `variable_map` に再接続
+- 検証:
+  - `bash tools/smokes/v2/profiles/integration/apps/phase131_loop_true_break_once_vm.sh`
+  - `bash tools/smokes/v2/profiles/integration/apps/phase131_loop_true_break_once_llvm_exe.sh`
+- 環境: WSL の一時的な EXDEV（`Invalid cross-device link`）は `wsl --shutdown` 再起動で解消、上記 + `phase97_next_non_ws_llvm_exe.sh` まで PASS
 - 入口: `docs/development/current/main/phases/phase-131/README.md`
-- 受け入れ: Phase 131 VM + LLVM EXE smokes + Phase 130/129 回帰が green
-- Status: IN PROGRESS
 
 ## 2025-12-18：Phase 127 完了 ✅