phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0

apps/lib/json_native/core/compat.hako

@@ -3,8 +3,8 @@
 //          that expects JsonDocBox/JsonNodeBox style methods can operate
 //          with json_native without changing call sites.
 
-using "apps/lib/json_native/parser/parser.nyash" as JsonParserUtils
-using "apps/lib/json_native/core/node.nyash" as JsonNode
+using "apps/lib/json_native/parser/parser.hako" as JsonParserUtils
+using "apps/lib/json_native/core/node.hako" as JsonNode
 
 // Box that mimics a document holder with parse()/root()/error()
 box JsonDocCompat {

apps/lib/json_native/core/node.hako

@@ -3,8 +3,8 @@
 // 美しいモジュラー設計: Utilsを活用してDRY原則を実践
 
 // NOTE: relative paths to support alias packaging (nyash.toml)
-using "../utils/string.nyash" as StringUtils
-using "../utils/escape.nyash" as EscapeUtils
+using "../utils/string.hako" as StringUtils
+using "../utils/escape.hako" as EscapeUtils
 // EscapeUtils は必要時に遅延includeする（一部構文が未対応環境でも数値系は動かすため）
 
 // 🌟 JSON値を表現するBox（Everything is Box原則）