json-native: token positions (line/column); escape utils BMP coverage + surrogate guard; add smokes for string escapes, nested, and error cases (AST/VM)

src/llvm_py/README.md

@@ -2,7 +2,7 @@
 
 ## 📝 概要
 Rust/inkwellの複雑性を回避し、llvmliteを使ってシンプルに実装する実験的バックエンド。
-ChatGPTが設計した`docs/design/LLVM_LAYER_OVERVIEW.md`の設計原則に従う。
+ChatGPTが設計した`docs/development/design/legacy/LLVM_LAYER_OVERVIEW.md`の設計原則に従う。
 
 ## 🎯 目的
 1. **検証ハーネス** - PHI/SSA構造の高速検証

src/llvm_py/llvm_builder.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 """
 Nyash LLVM Python Backend - Main Builder
-Following the design principles in docs/design/LLVM_LAYER_OVERVIEW.md
+Following the design principles in docs/development/design/legacy/LLVM_LAYER_OVERVIEW.md
 """
 
 import json

src/llvm_py/resolver.py

@@ -12,7 +12,7 @@ import llvmlite.ir as ir
 class Resolver:
     """
     Centralized value resolution with per-block caching.
-    Following the Core Invariants from docs/design/LLVM_LAYER_OVERVIEW.md:
+    Following the Core Invariants from docs/development/design/legacy/LLVM_LAYER_OVERVIEW.md:
     - Resolver-only reads
     - Localize at block start (PHI creation)
     - Cache per (block, value) to avoid redundant PHIs