From 0951368221d5507d4b24dfaf3431a0886dfc9fb5 Mon Sep 17 00:00:00 2001
From: kim <kim@applecherry.net>
Date: Tue, 30 Jun 2026 17:53:54 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20=EB=B3=B4=EB=93=9C=20=EC=84=A0=ED=83=9D?=
 =?UTF-8?q?=20=EC=8B=9C=20=EC=84=A4=EC=B9=98=EB=90=9C=20=EB=9D=BC=EC=9D=B4?=
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- _csbFetchLibs(): 보드 선택 시 /api/arduino/libs?fqbn= 호출 후 캐시
- 초기 로드 및 보드 변경 시 자동 갱신
- lang: 선택 시 라이브러리 조회 생략
- boardBlock에 "설치된 라이브러리: ..." 추가 (~113 토큰)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 web-ui/code.js | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/web-ui/code.js b/web-ui/code.js
index b089823..a643ea3 100644
--- a/web-ui/code.js
+++ b/web-ui/code.js
@@ -2880,8 +2880,11 @@ function _buildCodeSystemPrompt() {
   const _activeCode = (() => { try { const f = codeFiles.find(f => f.id === activeCodeFileId); return f?.model?.getValue() || f?.content || ''; } catch { return ''; } })();
   const boardHints = _boardSpecificHints(_activeCode);
   const isLangOnly = _csbSelBoard?.fqbn?.startsWith('lang:');
+  const libBlock = (!isLangOnly && _csbBoardLibs.length)
+    ? `\n설치된 라이브러리: ${_csbBoardLibs.join(', ')}`
+    : '';
   const boardBlock = _csbSelBoard?.fqbn
-    ? `\n## ${isLangOnly ? '코딩 언어' : '대상 보드'}: ${_csbSelBoard.name}${isLangOnly ? '' : ` (${_csbSelBoard.fqbn})`}${boardHints}\n`
+    ? `\n## ${isLangOnly ? '코딩 언어' : '대상 보드'}: ${_csbSelBoard.name}${isLangOnly ? '' : ` (${_csbSelBoard.fqbn})`}${boardHints}${libBlock}\n`
     : '';
 
   // 에디터 파일 컨텍스트 — 로컬 폴더와 분리하여 강조
@@ -4803,10 +4806,26 @@ let _csbSelBoard = (() => {
   catch { return CSB_BOARD_DEFAULT; }
 })();
 let _csbSelAllBoards = [];
+let _csbBoardLibs = [];      // 현재 보드의 설치된 라이브러리 캐시
+let _csbBoardLibsFqbn = '';  // 캐시된 fqbn
+
+async function _csbFetchLibs(fqbn) {
+  if (!fqbn || fqbn.startsWith('lang:')) { _csbBoardLibs = []; _csbBoardLibsFqbn = fqbn; return; }
+  if (fqbn === _csbBoardLibsFqbn) return;
+  try {
+    const data = await api('/api/arduino/libs?fqbn=' + encodeURIComponent(fqbn));
+    _csbBoardLibs = (data.libs || []).map(l => l.name).filter(Boolean);
+    _csbBoardLibsFqbn = fqbn;
+  } catch { _csbBoardLibs = []; }
+}
+
+// 초기 로드 시 현재 보드 라이브러리 가져오기
+_csbFetchLibs(_csbSelBoard.fqbn);
 
 function _csbBoardSelSave(board) {
   _csbSelBoard = board;
   try { localStorage.setItem('csb_selected_board', JSON.stringify(board)); } catch {}
+  _csbFetchLibs(board.fqbn);
   const el = document.getElementById('csb-board-sel-name');
   if (el) el.textContent = board.name;
   const badge = document.getElementById('csb-board-qemu-badge');