🚨 AI協調開発の危機回避事例を論文化（paper-09）

「ん？大丈夫？」の一言がPython特化ハードコーディングを防いだ事例を記録。
Everything is Box哲学 vs 技術的正しさの綱渡りからの生還を分析。

- docs/research/paper-09-ai-collaboration-pitfall/ を新規作成
  - incident-analysis.md: Lowerer特殊化危機の詳細分析
  - ai-collaboration-lessons.md: AI協調開発の教訓
  - intuition-in-engineering.md: エンジニアの直感の価値
  - summary.md: 綱渡りからの生還まとめ
- 研究論文の1論文1フォルダ原則に従い整理
- Python統合関連の実装修正とビルド成功確認

🛡️ Generated with Claude Code

src/runner/modes/bench.rs

@@ -1,5 +1,5 @@
 use super::super::NyashRunner;
-use nyash_rust::{parser::NyashParser, interpreter::NyashInterpreter, box_factory::builtin::BuiltinGroups, mir::MirCompiler, backend::VM};
+use nyash_rust::{parser::NyashParser, interpreter::NyashInterpreter, mir::MirCompiler, backend::VM};
 
 impl NyashRunner {
     /// Execute benchmark mode (split)
@@ -105,7 +105,7 @@ impl NyashRunner {
         let start = std::time::Instant::now();
         for _ in 0..iters {
             if let Ok(ast) = NyashParser::parse_from_string(code) {
-                let mut interp = NyashInterpreter::new_with_groups(BuiltinGroups::native_full());
+                let mut interp = NyashInterpreter::new();
                 let _ = interp.execute(ast);
             }
         }

src/runner/modes/common.rs

@@ -1,5 +1,5 @@
 use super::super::NyashRunner;
-use nyash_rust::{parser::NyashParser, interpreter::NyashInterpreter, box_factory::builtin::BuiltinGroups};
+use nyash_rust::{parser::NyashParser, interpreter::NyashInterpreter};
 use std::{fs, process};
 
 impl NyashRunner {
@@ -93,7 +93,7 @@ impl NyashRunner {
         println!("✅ Parse successful!");
 
         // Execute the AST
-        let mut interpreter = NyashInterpreter::new_with_groups(BuiltinGroups::native_full());
+        let mut interpreter = NyashInterpreter::new();
         eprintln!("🔍 DEBUG: Starting execution...");
         match interpreter.execute(ast) {
             Ok(result) => {

src/runner/modes/vm.rs

@@ -1,5 +1,5 @@
 use super::super::NyashRunner;
-use nyash_rust::{parser::NyashParser, mir::MirCompiler, backend::VM, runtime::{NyashRuntime, NyashRuntimeBuilder}, ast::ASTNode, core::model::BoxDeclaration as CoreBoxDecl, interpreter::SharedState, box_factory::{builtin::BuiltinGroups, user_defined::UserDefinedBoxFactory}};
+use nyash_rust::{parser::NyashParser, mir::MirCompiler, backend::VM, runtime::{NyashRuntime, NyashRuntimeBuilder}, ast::ASTNode, core::model::BoxDeclaration as CoreBoxDecl, interpreter::SharedState, box_factory::user_defined::UserDefinedBoxFactory};
 use std::{fs, process};
 use std::sync::Arc;
 
@@ -20,8 +20,7 @@ impl NyashRunner {
 
         // Prepare runtime and collect Box declarations for VM user-defined types
         let runtime = {
-            let mut builder = NyashRuntimeBuilder::new()
-                .with_builtin_groups(BuiltinGroups::native_full());
+            let mut builder = NyashRuntimeBuilder::new();
             if std::env::var("NYASH_GC_COUNTING").ok().as_deref() == Some("1") {
                 builder = builder.with_counting_gc();
             }