fix(joinir): Phase 241-EX - Remove hardcoded 'sum' check from Pattern3

Remove legacy hardcoded 'sum' carrier validation that was blocking
array_filter patterns with different accumulator names (e.g., 'out').

Before: Pattern3 required carrier named 'sum' to exist
After: Pattern3 uses carrier_info generically (any carrier name works)

Test results:
- phase49_joinir_array_filter_smoke: PASS ✅
- phase49_joinir_array_filter_fallback: PASS ✅
- phase49_joinir_array_filter_ab_comparison: PASS ✅
- Full suite: 909/909 PASS, 0 FAIL

Also: Archive old roadmap documentation (67k lines moved to docs/archive/)

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

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

docs/archive/proposals/architecture-redesign-proposal.md

@@ -1,5 +1,7 @@
 # 🌟 Nyash アーキテクチャ再設計提案
 
+Status: Historical
+
 *by Codex exec (2025-08-21)*
 
 ## 🎯 核心的洞察

docs/archive/proposals/concurrency/boxes.md

@@ -0,0 +1,6 @@
+# Nyash Concurrency — Box Model (Proposal, docs-only)
+
+Status: Historical
+
+(内容は `docs/development/proposals/concurrency/boxes.md` から移動)
+

docs/archive/proposals/ideas/language/pure-functional-blocks.md

@@ -0,0 +1,6 @@
+# 純粋関数型[]ブロック vs 通常{}ブロック設計案
+
+Status: Historical
+
+(内容は `docs/development/proposals/ideas/language/pure-functional-blocks.md` から移動)
+

docs/archive/proposals/instance_v2_unified_box_registry_plan.md

@@ -1,5 +1,7 @@
 # Instance v2 統一レジストリ設計メモ（提案）
 
+Status: Historical
+
 目的: ユーザー定義 / ビルトイン / プラグインの3系統を instance_v2 で一元管理し、同一の生成（birth）/破棄（fini）ライフサイクルで扱えるようにする。また、wasm-bindgen ターゲットでプラグイン機構を安全に無効化できる切替を用意する。
 
 ---

docs/archive/proposals/issue_62_update_proposal.md

@@ -1,5 +1,7 @@
 # Issue 62 Update Proposal: Enable String Constants in WASM Backend First
 
+Status: Historical
+
 This is a concrete request to implement minimal string support in the WASM backend so that Issue #62 can proceed. It reflects the current repo state.
 
 ## Background
@@ -77,4 +79,3 @@ Minimal features required:
 - Data segment approach is the simplest for initial support; future work may add constant pooling and deduplication.
 - Keeping verification via `print_str(ptr,len)` avoids complicating function return types for now.
 - UTF-8 decoding is available in hosts via `TextDecoder('utf-8')`.
-

docs/archive/proposals/mir-typeop-weakref-barrier-poc.md

@@ -1,5 +1,7 @@
 # PoC Plan: TypeOp / WeakRef / Barrier Unification
 
+Status: Historical
+
 Status: Draft (PoC design)
 Last Updated: 2025-08-23
 

docs/archive/proposals/mir_reduction_detailed_analysis.md

@@ -1,5 +1,7 @@
 # MIR 35→26→15命令削減: 詳細分析・移行戦略
 
+Status: Historical
+
 *実装ベース完全マッピング - 2025年8月17日版*  
 **注意**: このドキュメントは35→26命令への移行計画を記録しています。現在はさらに15命令に削減済みです。
 

docs/archive/proposals/nyash.link/README.md

@@ -0,0 +1,6 @@
+# nyash.linkシステム設計 - モジュール・依存関係管理革命
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/README.md` から移動)
+

docs/archive/proposals/nyash.link/bid-using-integration.md

@@ -0,0 +1,6 @@
+# nyash.link: BID using integration
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/bid-using-integration.md` から移動)
+

docs/archive/proposals/nyash.link/builtin-stdlib-architecture.md

@@ -0,0 +1,6 @@
+# nyash.link: builtin stdlib architecture
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/builtin-stdlib-architecture.md` から移動)
+

docs/archive/proposals/nyash.link/examples.md

@@ -0,0 +1,6 @@
+# nyash.link: Examples
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/examples.md` から移動)
+

docs/archive/proposals/nyash.link/final-implementation-strategy.md

@@ -0,0 +1,6 @@
+# nyash.link: final implementation strategy
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/final-implementation-strategy.md` から移動)
+

docs/archive/proposals/nyash.link/implementation-plan.md

@@ -0,0 +1,6 @@
+# nyash.link: implementation plan
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/implementation-plan.md` から移動)
+

docs/archive/proposals/nyash.link/master-architecture.md

@@ -0,0 +1,6 @@
+# nyash.link: master architecture
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/master-architecture.md` から移動)
+

docs/archive/proposals/nyash.link/minimal-stdlib-first.md

@@ -0,0 +1,6 @@
+# nyash.link: minimal stdlib first
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/minimal-stdlib-first.md` から移動)
+

docs/archive/proposals/nyash.link/real-world-examples.md

@@ -0,0 +1,6 @@
+# nyash.link: real-world examples
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/real-world-examples.md` から移動)
+

docs/archive/proposals/nyash.link/universal-api-integration.md

@@ -0,0 +1,6 @@
+# nyash.link: universal API integration
+
+Status: Historical
+
+(内容は `docs/development/proposals/nyash.link/universal-api-integration.md` から移動)
+

docs/archive/proposals/phase-195-pattern4.md

@@ -1,5 +1,7 @@
 # Phase 195: Pattern 4 (Loop with Continue) Implementation Plan
 
+Status: Historical
+
 **Status**: Deferred (not yet implemented)
 
 ## Overview

docs/archive/proposals/scope-reuse.md

@@ -1,5 +1,7 @@
 # Scope Reuse Blocks (MVP Proposal)
 
+Status: Historical
+
 Status: design-only during the feature‑pause (no implementation)
 
 Summary

docs/archive/proposals/stage1-architecture-improvement.md

@@ -1,5 +1,7 @@
 # Stage1セルフホスティング起動アーキテクチャ改善提案
 
+Status: Historical
+
 ## 📋 エグゼクティブサマリー
 
 Nyashのセルフホスティング実装で、Stage0（Rust）→ Stage1（.hako script）の起動が**環境変数25個**と**3つの引数経路**で複雑化している問題を整理し、業界標準パターンに基づいた改善案を提示する。

docs/archive/proposals/unified-members.md

@@ -1,5 +1,7 @@
 # Property System Revolution for Nyash (2025-09-18 Breakthrough)
 
+Status: Historical
+
 Status: **BREAKTHROUGH COMPLETED** - Final syntax decided through AI collaboration with ChatGPT, Claude, and Codex.
 
 ## 🌟 Revolutionary Achievement

docs/archive/proposals/urgent_fix_clone_box_to_arc_references.md

@@ -1,5 +1,7 @@
 # 🚨 緊急修正 Issue: Everything is Box設計でのclone_box()問題根本解決
 
+Status: Historical
+
 ## 📋 Issue概要
 **優先度**: 🔴 **URGENT** - 全ステートフルBox（SocketBox, P2PBox等）に影響  
 **期間**: 2-3日  

docs/archive/roadmap/README.md

@@ -0,0 +1,8 @@
+# Roadmap Phases Archive
+
+Status: Historical  
+Scope: 旧ロードマップフェーズ（初期設計/暫定案）をまとめたアーカイブ。
+
+`docs/development/roadmap/phases/` から移動した過去フェーズの資料をここにまとめているよ。  
+現行で参照したいフェーズは `docs/development/current/` 側（selfhost Stage‑3 / JoinIR v2 / ExprLowerer ライン）を見てね。
+