init

src/pages/AiNewsPage.jsx

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+import React, { useEffect, useRef, useState } from 'react';
+import { useAuth } from '../context/AuthContext';
+
+export default function AiNewsPage() {
+  const { user } = useAuth();
+  const [news, setNews] = useState([]);
+  const [newsOffset, setNewsOffset] = useState(0);
+  const [newsLoading, setNewsLoading] = useState(false);
+  const [showNewsEditor, setShowNewsEditor] = useState(false);
+  const [newsUrl, setNewsUrl] = useState('');
+  const contentRef = useRef(null);
+  const [initialized, setInitialized] = useState(false);
+  const [readyForScroll, setReadyForScroll] = useState(false);
+
+  useEffect(() => {
+    (async () => {
+      await loadNews(0, false);
+      // 초기 진입 시 리스트 하단(최신)으로 이동
+      requestAnimationFrame(() => {
+        const el = contentRef.current;
+        if (el) el.scrollTop = el.scrollHeight;
+        // 이미지 로드 등으로 높이가 늘어나는 경우를 대비해 한 번 더 보정
+        setTimeout(() => {
+          const el2 = contentRef.current;
+          if (el2) el2.scrollTop = el2.scrollHeight;
+          // 한 프레임 더 보장 후 스크롤 핸들러 활성화
+          requestAnimationFrame(() => {
+            setInitialized(true);
+            setReadyForScroll(true);
+          });
+        }, 60);
+      });
+    })();
+  }, []);
+
+  useEffect(() => {
+    if (!initialized) return;
+    const el = contentRef.current;
+    if (!el) return;
+    const onScroll = () => {
+      if (!readyForScroll) return; // 초기 자동 스크롤 완료 전에는 무시
+      if (el.scrollTop <= 20 && !newsLoading) {
+        loadNews(newsOffset, true);
+      }
+    };
+    el.addEventListener('scroll', onScroll);
+    return () => el.removeEventListener('scroll', onScroll);
+  }, [initialized, readyForScroll, newsOffset, newsLoading]);
+
+  const loadNews = async (offset = 0, prepend = false) => {
+    if (newsLoading) return;
+    setNewsLoading(true);
+    try {
+      const res = await fetch(`http://localhost:8010/community/ai_news?offset=${offset}&limit=10`);
+      if (!res.ok) return;
+      const data = await res.json();
+      const items = (data.items || []).reverse();
+      if (prepend) {
+        const el = contentRef.current;
+        const prevH = el ? el.scrollHeight : document.documentElement.scrollHeight;
+        setNews((prev) => [...items, ...prev]);
+        setTimeout(() => {
+          if (el) {
+            el.scrollTop = el.scrollHeight - prevH;
+          } else {
+            const newH = document.documentElement.scrollHeight;
+            window.scrollTo(0, newH - prevH);
+          }
+        }, 0);
+      } else {
+        setNews(items);
+        setTimeout(() => {
+          const el = contentRef.current;
+          if (el) el.scrollTop = el.scrollHeight; else window.scrollTo(0, document.documentElement.scrollHeight);
+        }, 0);
+      }
+      const nextOffset = data.nextOffset || 0;
+      setNewsOffset(nextOffset);
+      return nextOffset;
+    } finally {
+      setNewsLoading(false);
+    }
+  };
+
+  // 초기 스크롤 보정 루프는 제거: 진입 직후 하단으로 고정만 수행
+
+  const submitNews = async () => {
+    if (!newsUrl.trim()) return;
+    await fetch('http://localhost:8010/community/ai_news', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ url: newsUrl, author_id: String(user?.user_id || ''), author_email: user?.email || null }),
+    });
+    setShowNewsEditor(false);
+    setNewsUrl('');
+    loadNews(0);
+  };
+
+  return (
+    <section className="page page-ai-news" style={{ flex: 1, display: 'flex', flexDirection: 'column', paddingTop: '24px' }}>
+      <main className="community-content" ref={contentRef} style={{ overflowY: 'auto', flex: 1 }}>
+        <div style={{ padding: '0 20px 50px 20px' }}>
+          {news.map((n) => (
+            <div key={n.id} style={{ background: '#fff', border: '1px solid #eee', borderRadius: 12, padding: 12, marginBottom: 12 }}>
+              <div style={{ display: 'flex', gap: 12 }}>
+                {n.meta?.image ? (
+                  <img src={n.meta.image} alt="thumb" style={{ width: 96, height: 96, objectFit: 'cover', borderRadius: 8 }} />
+                ) : null}
+                <div style={{ flex: 1 }}>
+                  <a href={n.meta?.url || n.url} target="_blank" rel="noreferrer" style={{ fontWeight: 600, color: '#1976d2', textDecoration: 'none' }}>
+                    {n.meta?.title || n.url}
+                  </a>
+                  <div style={{ marginTop: 6, color: '#555', lineHeight: 1.5 }}>{n.meta?.description}</div>
+                  <div style={{ marginTop: 6, color: '#999', fontSize: '.9rem' }}>{new Date(n.created_at).toISOString().slice(0, 10)}</div>
+                </div>
+              </div>
+            </div>
+          ))}
+        </div>
+        {newsLoading && (
+          <div className="loading-overlay">
+            <span className="loading-text">뉴스 로딩중</span>
+            <span className="loading-dots">
+              <span className="loading-dot"></span>
+              <span className="loading-dot"></span>
+              <span className="loading-dot"></span>
+            </span>
+          </div>
+        )}
+        {user && !showNewsEditor && (
+          <button
+            onClick={() => setShowNewsEditor(true)}
+            style={{ position: 'fixed', right: 24, bottom: 24, background: '#ff9800', color: '#fff', border: 'none', padding: '12px 16px', borderRadius: 18, cursor: 'pointer', boxShadow: '0 4px 16px rgba(0,0,0,.15)', zIndex: 1000 }}
+          >
+            뉴스등록
+          </button>
+        )}
+        {showNewsEditor && user && (
+          <div
+            style={{ position: 'fixed', right: 24, bottom: 84, zIndex: 1001, width: 'min(560px, calc(100vw - 40px))', background: '#fff', border: '1px solid #ffd6c2', borderRadius: 12, padding: 12, boxShadow: '0 6px 18px rgba(0,0,0,.15)' }}
+          >
+            <input
+              value={newsUrl}
+              onChange={(e) => setNewsUrl(e.target.value)}
+              placeholder="뉴스 URL을 입력하세요"
+              style={{ width: 'calc(100% - 25px)', marginBottom: 8, padding: '10px 12px', borderRadius: 8, border: '1px solid #ffd6c2' }}
+              onKeyDown={(e) => {
+                if (e.key === 'Enter') {
+                  e.preventDefault();
+                  submitNews();
+                }
+              }}
+            />
+            <div style={{ display: 'flex', gap: 8, justifyContent: 'flex-end' }}>
+              <button
+                onClick={() => {
+                  setShowNewsEditor(false);
+                  setNewsUrl('');
+                }}
+                style={{ background: '#fff', border: '1px solid #ddd', padding: '8px 12px', borderRadius: 8 }}
+              >
+                취소
+              </button>
+              <button onClick={submitNews} style={{ background: '#ff9800', color: '#fff', border: 'none', padding: '8px 12px', borderRadius: 8 }}>등록</button>
+            </div>
+          </div>
+        )}
+      </main>
+    </section>
+  );
+}
+
+

src/pages/ChatPage.jsx

@@ -0,0 +1,547 @@
+import React, { useState, useEffect, useRef } from 'react';
+import { useTool } from '../context/ToolContext';
+import DevChatInput from '../tools/dev_chatbot/ChatInput.jsx';
+import { marked } from 'marked';
+marked.setOptions({ mangle:false, headerIds:false });
+import { fetchOpenAIChat, fetchOpenAIImage, classifyRequest } from '../services/openaiService';
+
+// === Chat History Panel 컴포넌트 추가 ===
+function ChatHistoryPanel({ toolId }) {
+  const [open, setOpen] = React.useState(false);
+  const [messages, setMessages] = React.useState([]);
+
+  // 패널이 열릴 때마다 로컬스토리지에서 메시지 불러오기
+  React.useEffect(() => {
+    if (!open) return;
+    try {
+      const saved = JSON.parse(localStorage.getItem(`messages_${toolId}`) || '[]');
+      setMessages(Array.isArray(saved) ? saved : []);
+    } catch {
+      setMessages([]);
+    }
+  }, [toolId, open]);
+
+  return (
+    <>
+      <button className="chat-history-toggle" onClick={() => setOpen(!open)} aria-label="대화 히스토리 토글">
+        <span></span>
+        <span></span>
+        <span></span>
+      </button>
+      <div className={`chat-history-panel ${open ? 'show' : ''}`}>
+        <div style={{ padding: '12px', fontWeight: 'bold', borderBottom: '1px solid #ffe8d5' }}>대화 히스토리</div>
+        <ul className="chat-history-list">
+          {messages.length === 0 && (
+            <li style={{ padding: '12px', color: '#999' }}>대화 기록이 없습니다.</li>
+          )}
+          {messages.map((m, idx) => (
+            <li key={idx} className="history-item">
+              <div className="history-content">{String(m.content).slice(0, 36)}{String(m.content).length > 36 ? '…' : ''}</div>
+              <div className="history-time">{m.time}</div>
+            </li>
+          ))}
+        </ul>
+      </div>
+    </>
+  );
+}
+
+function FileSidebar() {
+  const [files, setFiles] = useState([]);
+
+  const loadFiles = async () => {
+    try {
+      const res = await fetch('http://localhost:8010/files');
+      const data = await res.json();
+      setFiles(data.files || []);
+    } catch (_) {}
+  };
+
+  useEffect(() => {
+    loadFiles();
+  }, []);
+
+  const handleDelete = async (fname) => {
+    if (!window.confirm(`${fname} 파일을 삭제하시겠습니까?`)) return;
+    await fetch(`http://localhost:8010/file?filename=${encodeURIComponent(fname)}`, { method: 'DELETE' });
+    loadFiles();
+  };
+
+  const handleUpload = async (e) => {
+    const files = Array.from(e.target.files || []);
+    if (!files.length) return;
+    const formData = new FormData();
+    files.forEach((f) => formData.append('files', f));
+    await fetch('http://localhost:8010/upload_pdf', { method: 'POST', body: formData });
+    loadFiles();
+  };
+
+  return (
+    <div className="file-sidebar">
+      <div className="file-sidebar-header" style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+        <span>파일 리스트</span>
+        <button className="file-add-btn" onClick={() => document.getElementById('dev-file-input').click()}>+</button>
+        <input id="dev-file-input" type="file" multiple style={{ display: 'none' }} onChange={handleUpload} />
+      </div>
+      <ul className="file-list">
+        {files.map((f) => (
+          <li key={f} title={f} style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+            <span style={{ flex: 1, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{f}</span>
+            <button className="file-del-btn" onClick={() => handleDelete(f)}>
+              ✕
+            </button>
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+}
+
+export default function ChatPage() {
+  const { selectedTool } = useTool();
+  const [messages, setMessages] = useState(() => {
+    try {
+      const toolIdInitial = selectedTool?.id || 'chatgpt';
+      const saved = JSON.parse(localStorage.getItem(`messages_${toolIdInitial}`) || '[]');
+      return Array.isArray(saved) ? saved.filter(m=>m.type!=='loading') : [];
+    } catch {
+      return [];
+    }
+  });
+  const [input, setInput] = useState('');
+  const [chatModel, setChatModel] = useState('GPT-5');
+  const inputRef = useRef(null);
+  const chatEndRef = useRef(null);
+
+  // 기본 카드: ChatGPT (도구 목록에서 제거되었기 때문에 selectedTool 이 없으면 ChatGPT로 동작)
+  const defaultChatTool = { id: 'chatgpt', name: 'ChatGPT', description: '일반 대화 및 모델 선택 기능을 제공합니다.' };
+  const activeTool = selectedTool || defaultChatTool;
+
+  // 히스토리 패널용 공통 값
+  const toolId = selectedTool?.id || 'chatgpt';
+  const historyPanel = <ChatHistoryPanel toolId={toolId} />;
+
+  useEffect(() => {
+    // 카드 전환 시 해당 카드의 저장된 대화 불러오기 (기본: chatgpt)
+    const toolId = selectedTool?.id || 'chatgpt';
+    try {
+      const key = `messages_${toolId}`;
+      const saved = JSON.parse(localStorage.getItem(key) || '[]');
+      setMessages(Array.isArray(saved) ? saved.filter(m=>m.type!=='loading') : []);
+    } catch {
+      setMessages([]);
+    }
+  }, [selectedTool?.id]);
+
+  useEffect(() => {
+    // scroll to bottom
+    chatEndRef.current?.scrollIntoView({ behavior: 'smooth' });
+  }, [messages]);
+
+  // 대화 변경 시 로컬스토리지에 저장 (기본: chatgpt)
+  useEffect(() => {
+    const toolId = selectedTool?.id || 'chatgpt';
+    try { localStorage.setItem(`messages_${toolId}`, JSON.stringify(messages)); } catch {}
+  }, [messages, selectedTool?.id]);
+
+
+  // iframe 도구 처리
+  const iframeTools = {
+    research_qa: 'http://yongin-qa-chatbot.daewoongai.com/',
+    lims_text2sql: 'http://3.38.184.255:8080/',
+  };
+
+  if (selectedTool && iframeTools[selectedTool.id]) {
+    return (
+      <section className="page page-chat" style={{ flex: 1, display: 'flex', flexDirection: 'column', position:'relative' }}>
+        {historyPanel}
+        <iframe
+          src={iframeTools[selectedTool.id]}
+          className="external-iframe"
+          title="external"
+          style={{ flex: 1 }}
+        />
+      </section>
+    );
+  }
+
+  if (selectedTool && selectedTool.id === 'dev_chatbot') {
+    return (
+      <section className="page page-chat has-file-sidebar" style={{ flex: 1, position: 'relative', display:'flex', justifyContent:'flex-start', alignItems:'stretch' }}>
+        {historyPanel}
+        <FileSidebar />
+        {/* DevChatInput renders header, messages, input */}
+        <DevChatInput />
+      </section>
+    );
+  }
+
+  // 문서번역 도구: Word 파일 업로드/목록/다운로드/삭제 + 실시간 텍스트 번역 지원
+  if (selectedTool && selectedTool.id === 'doc_translation') {
+    return (
+      <section className="page page-chat has-file-sidebar" style={{ flex: 1, position: 'relative', display:'flex', justifyContent:'flex-start', alignItems:'stretch' }}>
+        {historyPanel}
+        <DocTranslationSidebar />
+        <DocTranslationChat />
+      </section>
+    );
+  }
+
+  const sendMessage = async () => {
+    if (!input.trim()) return;
+    const userMsg = { type: 'user', content: input.trim(), time: new Date().toLocaleTimeString() };
+    setMessages((prev) => [...prev, userMsg]);
+    setInput('');
+    if (inputRef.current) {
+      inputRef.current.style.height = '32px';
+    }
+
+    // loading placeholder
+    const loadingMsg = { type: 'loading', start: Date.now() };
+    setMessages((prev) => [...prev, loadingMsg]);
+
+    // interval to update elapsed seconds
+    const loadingInterval = setInterval(() => {
+      setMessages((prev) => {
+        const last = prev[prev.length - 1];
+        if (last && last.type === 'loading') return [...prev]; // trigger rerender
+        clearInterval(loadingInterval);
+        return prev;
+      });
+    }, 1000);
+
+    // backend 호출
+    try {
+      let botContent = '';
+      if (activeTool.id === 'chatgpt') {
+        const modelMap = {
+          'GPT-5': 'gpt-5',
+          'GPT-5-mini': 'gpt-5-mini',
+          'GPT-5-nano': 'gpt-5-nano',
+          'GPT-4o': 'gpt-4o',
+          'GPT-4.1-mini': 'gpt-4o-mini',
+          'o4-mini': 'o4-mini',
+        };
+        const model = modelMap[chatModel] || modelMap['GPT-5'];
+        const sysPrompt = `당신은 한국어로 답하는 뛰어난 AI 어시스턴트입니다.
+
+✅ 반드시 사실(팩트)에 기반하여 거짓 정보 없이 답하십시오.
+✅ 먼저 내부적으로 생각(Chain-of-Thought)을 수행한 뒤, 이용자에게는 정리된 결과만 보여 주세요.
+✅ 충분한 길이(최소 5문단)로, 필요 시 제목·소제목·순서/불릿 목록·코드 블록을 포함한 **Markdown** 형식을 사용하십시오.
+✅ 이해를 돕기 위해 😃, 📌, 💡 등 적절한 이모지를 활용하십시오.
+✅ 요약만 제시하지 말고, 예시·배경 설명·추가 정보를 상세히 제공합니다.
+✅ 가능하다면 신뢰할 수 있는 공개 출처 URL 또는 참고문헌을 맨 아래에 제시하십시오.`;
+        // 이미지 생성 의도 간단 감지 (예: 이미지/그려줘/생성해줘/그림/사진 등 키워드)
+        // 1차: 키워드 룰기반, 2차: 모델 분류기로 보강 (샘플코드 방식)
+        let wantsImage = /\b(이미지|그려줘|그림|사진|image|draw|generate\s+image|그려|create\s+an?\s+image|render)\b/i.test(userMsg.content);
+        if (!wantsImage) {
+          try {
+            const cls = await classifyRequest(userMsg.content, 'gpt-5');
+            wantsImage = cls === 'image';
+          } catch (_) { /* ignore */ }
+        }
+        if (wantsImage) {
+          try {
+            const dataUrl = await fetchOpenAIImage(userMsg.content, 'gpt-image-1', { size: '1024x1024' });
+            // 이미지 응답은 전용 타입으로 렌더링
+            clearInterval(loadingInterval);
+            const botMsg = { type: 'image', content: dataUrl, time: new Date().toLocaleTimeString() };
+            setMessages((prev) => {
+              const copy = [...prev];
+              const idx = copy.findIndex((m) => m.type === 'loading');
+              if (idx !== -1) copy[idx] = botMsg; else copy.push(botMsg);
+              return copy;
+            });
+            return; // 조기 반환 (텍스트 처리 불필요)
+          } catch (err) {
+            // 이미지 생성 실패 시 텍스트 답변으로 폴백
+            botContent = await fetchOpenAIChat([
+              { role: 'system', content: sysPrompt },
+              { role: 'user', content: userMsg.content },
+            ], model, { });
+          }
+        } else {
+          botContent = await fetchOpenAIChat([
+            { role: 'system', content: sysPrompt },
+            { role: 'user', content: userMsg.content },
+          ], model, { });
+        }
+      } else {
+        const formData = new FormData();
+        formData.append('message', userMsg.content);
+        formData.append('tool_id', activeTool.id);
+        const res = await fetch('http://localhost:8010/chat', { method: 'POST', body: formData });
+        const data = await res.json();
+        botContent = data.response;
+      }
+      clearInterval(loadingInterval);
+      const botMsg = { type: 'bot', content: botContent, time: new Date().toLocaleTimeString(), markdown:true };
+      // replace loading placeholder
+      setMessages((prev) => {
+        const copy = [...prev];
+        const idx = copy.findIndex((m) => m.type === 'loading');
+        if (idx !== -1) copy[idx] = botMsg;
+        return copy;
+      });
+    } catch (e) {
+      setMessages((prev) => [...prev, { type: 'bot', content: '서버 오류', time: new Date().toLocaleTimeString() }]);
+    }
+  };
+
+  return (
+    <section className="page page-chat" style={{ flex: 1, display:'flex', flexDirection:'column', position:'relative' }}>
+      {historyPanel}
+      <div className="chat-center" style={{ width: '100%', maxWidth: 800 }}>
+        <div className="tool-chat-header">
+          <div className="tool-chat-title">{activeTool.name}</div>
+          <div className="tool-chat-desc">{activeTool.description}</div>
+        </div>
+        {messages.map((m, idx) => (
+          <div key={idx} className={`chat-message ${
+            m.type === 'user' ? 'user-message' : (
+              m.type === 'bot' || m.type === 'image' ? 'bot-message' : 'bot-message progress'
+            )}`}>
+            {m.type==='loading' ? (
+              <div className="message-content" style={{color:'#888',fontStyle:'italic'}}>생각중...</div>
+            ) : m.type==='image' ? (
+              <div className="message-content"><img src={m.content} alt="generated" style={{ maxWidth:'100%', borderRadius:12 }}/></div>
+            ) : m.markdown ? (
+              <div className="message-content" dangerouslySetInnerHTML={{ __html: marked.parse(m.content) }} />
+            ) : (
+              <div className="message-content">{m.content}</div>
+            )}
+            <div className="message-time">{ m.type==='loading' ? `${Math.floor((Date.now()-m.start)/1000)}s` : m.time}</div>
+          </div>
+        ))}
+        <div ref={chatEndRef} />
+      </div>
+
+      <div className="chat-input-wrapper">
+        <div className="chat-input-area">
+          {activeTool.id==='chatgpt' && (
+            <select value={chatModel} onChange={(e)=>setChatModel(e.target.value)} style={{ marginRight:12, height:36, borderRadius:12, border:'1px solid #ffd6c2', color:'#ff6b4a' }}>
+              <option value="GPT-5">GPT-5</option>
+              <option value="GPT-5-mini">GPT-5-mini</option>
+              <option value="GPT-5-nano">GPT-5-nano</option>
+              <option value="GPT-4o">GPT-4o</option>
+              <option value="GPT-4.1-mini">GPT-4.1-mini</option>
+              <option value="o4-mini">o4-mini</option>
+            </select>
+          )}
+          <textarea
+            ref={inputRef}
+            className="chat-input"
+            rows={1}
+            value={input}
+            onChange={(e) => setInput(e.target.value)}
+            onInput={(e)=>{ e.target.style.height='auto'; e.target.style.height=Math.min(e.target.scrollHeight,240)+"px"; }}
+            placeholder="메시지 입력"
+            style={{ flex: 1, resize: 'none', border: 'none', outline: 'none', overflowY:'auto' }}
+            onKeyDown={(e) => {
+              if (e.key === 'Enter' && !e.shiftKey) {
+                e.preventDefault();
+                sendMessage();
+              }
+            }}
+          />
+          <button className="chat-send" onClick={sendMessage} disabled={!input.trim()}>
+            ↑
+          </button>
+        </div>
+      </div>
+    </section>
+  );
+} 
+
+function DocTranslationSidebar() {
+  const [files, setFiles] = useState([]);
+
+  const extractRealFilename = (filename) => {
+    const regex = /^\[doc_translation\]_admin_\d{14,17}_(.+)$/;
+    const match = filename.match(regex);
+    return match ? match[1] : filename;
+  };
+
+  const loadFiles = async () => {
+    try {
+      const res = await fetch('http://localhost:8010/doc_translation/files');
+      const data = await res.json();
+      setFiles(Array.isArray(data) ? data : []);
+    } catch (_) {}
+  };
+
+  useEffect(() => { loadFiles(); }, []);
+
+  const handleUpload = async () => {
+    const input = document.createElement('input');
+    input.type = 'file';
+    input.accept = '.doc,.docx';
+    input.multiple = true;
+    input.style.display = 'none';
+    document.body.appendChild(input);
+    input.onchange = async () => {
+      const files = Array.from(input.files || []);
+      if (!files.length) return;
+      const formData = new FormData();
+      files.forEach((f) => formData.append('files', f));
+      try {
+        await fetch('http://localhost:8010/doc_translation/upload_doc', { method: 'POST', body: formData });
+      } finally {
+        document.body.removeChild(input);
+        loadFiles();
+      }
+    };
+    input.click();
+  };
+
+  const handleDelete = async (serverFilename) => {
+    if (!window.confirm(`${extractRealFilename(serverFilename)} 파일을 삭제하시겠습니까?`)) return;
+    await fetch(`http://localhost:8010/doc_translation/files/${encodeURIComponent(serverFilename)}`, { method: 'DELETE' });
+    loadFiles();
+  };
+
+  const handleDownload = async (filename) => {
+    const res = await fetch(`http://localhost:8010/doc_translation/download/${encodeURIComponent(filename)}`);
+    if (!res.ok) return alert('다운로드 실패');
+    const blob = await res.blob();
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement('a');
+    a.href = url;
+    a.download = extractRealFilename(filename);
+    document.body.appendChild(a);
+    a.click();
+    URL.revokeObjectURL(url);
+    document.body.removeChild(a);
+  };
+
+  return (
+    <div className="file-sidebar">
+      <div className="file-sidebar-header" style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+        <span>파일 리스트</span>
+        <button className="file-add-btn" onClick={handleUpload}>+</button>
+      </div>
+      <ul className="file-list">
+        {files.map((f) => (
+          <li key={f.filename} className={f.has_result ? 'translation-result-item' : ''} data-fname={f.filename} title={extractRealFilename(f.filename)}>
+            {f.has_result ? (
+              <div className="file-item-content">
+                <div className="original-file">{extractRealFilename(f.filename)}</div>
+                <div className="file-actions">
+                  <a href="#" className="download-original-link" onClick={(e)=>{e.preventDefault(); handleDownload(f.filename);}}>[원본다운]</a>
+                  <a href="#" className="download-result-link" onClick={(e)=>{e.preventDefault(); handleDownload(f.result_filename);}}>[결과다운]</a>
+                  <button className="file-del-btn" onClick={()=>handleDelete(f.filename)}>✕</button>
+                </div>
+              </div>
+            ) : (
+              <>
+                <span className="translating">번역중...</span>
+                <button className="file-del-btn" onClick={()=>handleDelete(f.filename)}>✕</button>
+              </>
+            )}
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+}
+
+function DocTranslationChat() {
+  const { selectedTool } = useTool();
+  const [messages, setMessages] = useState([]);
+  const [input, setInput] = useState('');
+  const [model, setModel] = useState('internal'); // internal | external
+  const inputRef2 = useRef(null);
+  const chatEndRef = useRef(null);
+
+  // 카드 전환 시 저장된 대화 불러오기
+  useEffect(() => {
+    try {
+      const saved = JSON.parse(localStorage.getItem('messages_doc_translation') || '[]');
+      setMessages(Array.isArray(saved) ? saved : []);
+    } catch { setMessages([]); }
+  }, [selectedTool?.id]);
+  useEffect(() => { chatEndRef.current?.scrollIntoView({ behavior: 'smooth' }); }, [messages]);
+  // 변경 시 저장
+  useEffect(() => {
+    try { localStorage.setItem('messages_doc_translation', JSON.stringify(messages)); } catch {}
+  }, [messages]);
+
+  const sendMessage = async () => {
+    if (!input.trim()) return;
+    const userMsg = { type: 'user', content: input.trim(), time: new Date().toLocaleTimeString() };
+    setMessages((prev) => [...prev, userMsg, { type: 'loading', start: Date.now() }]);
+    setInput('');
+    if (inputRef2.current) inputRef2.current.style.height = '32px';
+    try {
+      const form = new FormData();
+      form.append('message', userMsg.content);
+      // ChatPage 공통 /chat 엔드포인트의 문서번역 분기와 동일 동작을 위해 model 전달
+      form.append('tool_id', 'doc_translation');
+      form.append('model', model === 'internal' ? 'internal' : 'gpt-4o');
+      const res = await fetch('http://localhost:8010/chat', { method: 'POST', body: form });
+      const data = await res.json();
+      const botContent = data.response;
+      setMessages((prev) => {
+        const copy = [...prev];
+        const idx = copy.findIndex((m) => m.type === 'loading');
+        const botMsg = { type: 'bot', content: botContent, time: new Date().toLocaleTimeString(), markdown: true };
+        if (idx !== -1) copy[idx] = botMsg; else copy.push(botMsg);
+        return copy;
+      });
+    } catch (e) {
+      setMessages((prev) => [...prev, { type: 'bot', content: '서버 오류', time: new Date().toLocaleTimeString() }]);
+    }
+  };
+
+  return (
+    <>
+      <div className="chat-center" style={{ width: '100%', maxWidth: 800 }}>
+        <div className="tool-chat-header">
+          <div className="tool-chat-title">문서번역</div>
+          <div className="tool-chat-desc">MS Word 문서를 업로드하면 한글을 영어로 번역합니다.</div>
+        </div>
+        {messages.map((m, idx) => (
+          <div key={idx} className={`chat-message ${m.type === 'user' ? 'user-message' : (m.type==='bot' ? 'bot-message' : 'bot-message progress')}`}>
+            {m.type==='loading' ? (
+              <div className="message-content" style={{color:'#888',fontStyle:'italic'}}>생각중...</div>
+            ) : m.markdown ? (
+              <div className="message-content" dangerouslySetInnerHTML={{ __html: marked.parse(m.content) }} />
+            ) : (
+              <div className="message-content">{m.content}</div>
+            )}
+            <div className="message-time">{ m.type==='loading' ? `${Math.floor((Date.now()-m.start)/1000)}s` : m.time}</div>
+          </div>
+        ))}
+        <div ref={chatEndRef} />
+      </div>
+
+      <div className="chat-input-wrapper">
+        <div className="chat-input-area">
+          <select value={model} onChange={(e)=>setModel(e.target.value)} style={{ marginRight:12, height:36, borderRadius:12, border:'1px solid #ffd6c2', color:'#ff6b4a' }}>
+            <option value="internal">자체모델</option>
+            <option value="external">외부모델</option>
+          </select>
+          <textarea
+            ref={inputRef2}
+            className="chat-input"
+            rows={1}
+            value={input}
+            onChange={(e) => setInput(e.target.value)}
+            onInput={(e)=>{ e.target.style.height='auto'; e.target.style.height=Math.min(e.target.scrollHeight,240)+"px"; }}
+            placeholder="번역할 한국어 텍스트를 입력하세요"
+            style={{ flex: 1, resize: 'none', border: 'none', outline: 'none', overflowY:'auto' }}
+            onKeyDown={(e) => {
+              if (e.key === 'Enter' && !e.shiftKey) {
+                e.preventDefault();
+                sendMessage();
+              }
+            }}
+          />
+          <button className="chat-send" onClick={sendMessage} disabled={!input.trim()}>
+            ↑
+          </button>
+        </div>
+      </div>
+    </>
+  );
+}

src/pages/LecturePage.jsx

@@ -0,0 +1,79 @@
+import React from 'react';
+
+const SECTIONS = [
+  {
+    title: '강수진박사의 프롬프트 엔지니어링의 세계',
+    videos: [
+      'https://www.youtube.com/watch?v=GlvOHXJT_gI&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=14&t=26s',
+      'https://www.youtube.com/watch?v=nl34M5bKkVM&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=12',
+      'https://www.youtube.com/watch?v=0sRlrW_UyLk&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=11',
+      'https://www.youtube.com/watch?v=MtTAprzHOBg&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=10',
+      'https://www.youtube.com/watch?v=CyWcZWVwCjQ&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=9',
+      'https://www.youtube.com/watch?v=X7ycln4JREM&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=8',
+      'https://www.youtube.com/watch?v=rrCmsOFt2UU&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=7',
+      'https://www.youtube.com/watch?v=7cyDMjzcdxM&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=6',
+      'https://www.youtube.com/watch?v=Sr4MEivnt4M&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=5',
+      'https://www.youtube.com/watch?v=F4ExQ3P_A5w&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=4',
+      'https://www.youtube.com/watch?v=tiC5k9P93cE&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=3',
+      'https://www.youtube.com/watch?v=nfPXfsVz6jM&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=2',
+      'https://www.youtube.com/watch?v=9NH3FhBX2ng&list=PL7d4-rFjtYdK4-RGBJTXbgLI5a-H7lz7g&index=1',
+    ],
+  },
+  {
+    title: 'AI, 안해보면 모른다',
+    videos: [
+      'https://www.youtube.com/watch?v=menXWx89QFg&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=14',
+      'https://www.youtube.com/watch?v=6IsYJy3ussQ&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=13',
+      'https://www.youtube.com/watch?v=Mpk4LNZ_P4c&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=12',
+      'https://www.youtube.com/watch?v=r2UMvkwJTRc&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=11',
+      'https://www.youtube.com/watch?v=4uc58O4poJE&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=10',
+      'https://www.youtube.com/watch?v=njAu-W-JA6c&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=9',
+      'https://www.youtube.com/watch?v=SaYxoKVYgsk&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=8',
+      'https://www.youtube.com/watch?v=sDDW5w2jD2Q&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=7',
+      'https://www.youtube.com/watch?v=Ext47QeBCbY&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=6',
+      'https://www.youtube.com/watch?v=og0mGD29Hw8&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=5',
+      'https://www.youtube.com/watch?v=GkZgTth3guQ&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=4',
+      'https://www.youtube.com/watch?v=oSZBGZmaTTw&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=3',
+      'https://www.youtube.com/watch?v=t6Xc1Ey5PMY&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=2',
+      'https://www.youtube.com/watch?v=aFw4Z9F4Ens&list=PL7d4-rFjtYdK5d2KOXyyaBymJYtEDRmy3&index=1',
+    ],
+  },
+  {
+    title: 'MCP를 배워보자',
+    videos: [
+      'https://www.youtube.com/watch?v=kEAV-PqWD_4',
+      'https://www.youtube.com/watch?v=ha9kn0qe4Mc',
+      'https://www.youtube.com/watch?v=ISrYHGg2C2c',
+      'https://www.youtube.com/watch?v=cxOoV2guNQQ',
+      'https://www.youtube.com/watch?v=oAxunD8k0C8',
+      'https://www.youtube.com/watch?v=oZ1O6Z9HwW0',
+      'https://www.youtube.com/watch?v=nyZnrKVaIXU',
+      'https://www.youtube.com/watch?v=BzwhskWZ-CQ',
+    ],
+  },
+];
+
+function toThumb(url) {
+  const match = url.match(/(?:v=|\.be\/|embed\/)([\w-]{11})/);
+  const id = match ? match[1] : '';
+  return id ? `https://img.youtube.com/vi/${id}/hqdefault.jpg` : '';
+}
+
+export default function LecturePage() {
+  return (
+    <section className="page page-lecture" style={{ flex: 1, display: 'flex', flexDirection: 'column', padding: '24px' }}>
+      {SECTIONS.map((sec) => (
+        <React.Fragment key={sec.title}>
+          <h3 className="lecture-topic" style={{ marginTop:  sec.title===SECTIONS[0].title ? 0 : 24 }}>{sec.title}</h3>
+          <div className="lecture-video-list">
+            {sec.videos.map((url) => (
+              <a key={url} href={url} target="_blank" rel="noreferrer" className="lecture-video">
+                <img src={toThumb(url)} alt="video thumbnail" />
+              </a>
+            ))}
+          </div>
+        </React.Fragment>
+      ))}
+    </section>
+  );
+} 

src/pages/LoginPage.jsx

@@ -0,0 +1,39 @@
+import React, { useState } from 'react';
+import { useAuth } from '../context/AuthContext';
+
+export default function LoginPage({ onLoggedIn }) {
+  const { login } = useAuth();
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [error, setError] = useState('');
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    setError('');
+    try {
+      await login(email.trim(), password);
+      onLoggedIn?.();
+    } catch (err) {
+      setError('이메일 또는 비밀번호가 올바르지 않습니다.');
+    }
+  };
+
+  return (
+    <section className="page" style={{ flex: 1, display:'flex', alignItems:'center', justifyContent:'center' }}>
+      <form onSubmit={handleSubmit} style={{ width:'100%', maxWidth:480, padding:'0 16px' }}>
+        <div style={{ marginBottom:16, background:'#f7f7f7', borderRadius:12, padding:'16px 18px' }}>
+          <input type="email" placeholder="이메일" value={email} onChange={(e)=>setEmail(e.target.value)}
+            style={{ width:'100%', background:'transparent', border:'none', outline:'none', fontSize:'1.1rem' }} required />
+        </div>
+        <div style={{ marginBottom:24, background:'#f7f7f7', borderRadius:12, padding:'16px 18px' }}>
+          <input type="password" placeholder="비밀번호" value={password} onChange={(e)=>setPassword(e.target.value)}
+            style={{ width:'100%', background:'transparent', border:'none', outline:'none', fontSize:'1.1rem' }} required />
+        </div>
+        {error && <div style={{ color:'#e53935', marginBottom:12, textAlign:'center' }}>{error}</div>}
+        <button type="submit" style={{ width:'100%', height:64, borderRadius:18, border:'none', background:'#111', color:'#fff', fontSize:'1.4rem', fontWeight:700, cursor:'pointer' }}>로그인</button>
+      </form>
+    </section>
+  );
+}
+
+

src/pages/QnaPage.jsx

@@ -0,0 +1,107 @@
+import React, { useEffect, useState } from 'react';
+import { useAuth } from '../context/AuthContext';
+
+async function fetchQnaList() {
+  const res = await fetch('http://localhost:8010/community/qna');
+  if (!res.ok) throw new Error('QNA 목록 조회 실패');
+  return await res.json();
+}
+
+export default function QnaPage() {
+  const { user } = useAuth();
+  const [qna, setQna] = useState([]);
+  const [openId, setOpenId] = useState(null);
+  const [openContent, setOpenContent] = useState('');
+  const [showEditor, setShowEditor] = useState(false);
+  const [title, setTitle] = useState('');
+  const [content, setContent] = useState('');
+
+  useEffect(() => {
+    fetchQnaList().then(setQna).catch(() => setQna([]));
+  }, []);
+
+  const handleOpen = async (id) => {
+    try {
+      const res = await fetch(`http://localhost:8010/community/qna/${id}?increase=1`);
+      if (!res.ok) return;
+      const data = await res.json();
+      setOpenId(id);
+      setOpenContent(data.content);
+      fetchQnaList().then(setQna).catch(() => {});
+    } catch {}
+  };
+
+  const submitQna = async () => {
+    if (!title.trim() || !content.trim()) return;
+    const res = await fetch('http://localhost:8010/community/qna', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ title, content, author_id: String(user?.user_id || ''), author_email: user?.email || null }),
+    });
+    if (res.ok) {
+      setTitle('');
+      setContent('');
+      setShowEditor(false);
+      fetchQnaList().then(setQna).catch(() => {});
+    } else {
+      const errText = await res.text().catch(() => '');
+      alert('등록 실패: ' + errText);
+    }
+  };
+
+  return (
+    <section className="page page-qna" style={{ flex: 1, display: 'block', paddingTop: '24px' }}>
+      <div style={{ width: '100%', display: 'flex', justifyContent: 'flex-end', margin: '0 20px 12px 20px' }}>
+        <button onClick={() => setShowEditor(true)} style={{ background: '#fff8ef', color: '#ff9800', border: '1px solid #FFE0B2', padding: '8px 12px', borderRadius: 8, cursor: 'pointer', marginRight: 40 }}>글쓰기</button>
+      </div>
+      <table className="qna-table">
+        <thead>
+          <tr>
+            <th style={{ width: 60 }}>번호</th>
+            <th>제목</th>
+            <th style={{ width: 120 }}>등록일</th>
+            <th style={{ width: 80 }}>조회수</th>
+          </tr>
+        </thead>
+        <tbody>
+          {qna.map((r) => (
+            <React.Fragment key={r.id}>
+              <tr>
+                <td>{r.id}</td>
+                <td className="qna-title">
+                  <a href="#" onClick={(e) => { e.preventDefault(); handleOpen(r.id); }}>{r.title}</a>
+                </td>
+                <td>{new Date(r.created_at).toISOString().slice(0, 10)}</td>
+                <td>{r.views}</td>
+              </tr>
+              {openId === r.id && (
+                <tr>
+                  <td colSpan={4}>
+                    <div style={{ background: '#fff8ef', border: '1px solid #FFE0B2', borderRadius: 12, padding: 16 }}>
+                      <div style={{ whiteSpace: 'pre-wrap', lineHeight: 1.5 }}>{openContent}</div>
+                      <div style={{ display: 'flex', justifyContent: 'flex-end', marginTop: 8 }}>
+                        <button onClick={() => setOpenId(null)} style={{ background: '#fff', border: '1px solid #ddd', padding: '6px 10px', borderRadius: 8 }}>닫기</button>
+                      </div>
+                    </div>
+                  </td>
+                </tr>
+              )}
+            </React.Fragment>
+          ))}
+        </tbody>
+      </table>
+      {showEditor && (
+        <div style={{ width: 'calc(100% - 80px)', margin: '16px 20px 0 20px', background: '#fff', border: '1px solid #ffd6c2', borderRadius: 12, padding: 16 }}>
+          <input value={title} onChange={(e) => setTitle(e.target.value)} placeholder="제목" style={{ width: 'calc(100% - 40px)', marginBottom: 8, padding: '10px 12px', borderRadius: 8, border: '1px solid #ffd6c2' }} />
+          <textarea value={content} onChange={(e) => setContent(e.target.value)} placeholder="내용" rows={6} style={{ width: 'calc(100% - 40px)', padding: '10px 12px', borderRadius: 8, border: '1px solid #ffd6c2' }} />
+          <div style={{ display: 'flex', gap: 8, justifyContent: 'flex-end', marginTop: 8 }}>
+            <button onClick={() => setShowEditor(false)} style={{ background: '#fff', border: '1px solid #ddd', padding: '8px 12px', borderRadius: 8 }}>취소</button>
+            <button onClick={submitQna} style={{ background: '#ff9800', color: '#fff', border: 'none', padding: '8px 12px', borderRadius: 8 }}>등록</button>
+          </div>
+        </div>
+      )}
+    </section>
+  );
+}
+
+

src/pages/ToolsPage.jsx

@@ -0,0 +1,63 @@
+import React, { useEffect, useState } from 'react';
+import { useTool } from '../context/ToolContext';
+
+export default function ToolsPage({ onNavigate }) {
+  const { tools, favorites, toggleFavorite, setSelectedTool } = useTool();
+  const [filter, setFilter] = useState('all');
+
+  const filtered = tools.filter((tool) => {
+    if (filter === 'all') return true;
+    if (filter === 'favorite') return favorites.includes(tool.id);
+    return tool.category?.includes(filter);
+  });
+
+  const handleSelect = (tool) => {
+    setSelectedTool(tool);
+    onNavigate && onNavigate('chat');
+  };
+
+  return (
+    <section className="page page-tools" style={{ flex: 1, display:'flex', flexDirection:'column' }}>
+      <div className="tools-header">
+        <span className="tools-title">도구 목록</span>
+        <div className="tools-filters">
+          {['all', 'favorite', '오픈AI', '내부AI'].map((f) => (
+            <button
+              key={f}
+              className={`filter-btn ${filter === f ? 'active' : ''}`}
+              onClick={() => setFilter(f)}
+              data-filter={f}
+            >
+              {f === 'all' ? '전체' : f === 'favorite' ? '즐겨찾기' : f}
+            </button>
+          ))}
+        </div>
+      </div>
+      <div className="tools-list">
+        {filtered.map((tool) => {
+          const fav = favorites.includes(tool.id);
+          return (
+            <div
+              className="tool-card"
+              key={tool.id}
+              data-tool-id={tool.id}
+              onClick={() => handleSelect(tool)}
+            >
+              <div className="tool-title">{tool.name}</div>
+              <div className="tool-desc">{tool.description}</div>
+              <div
+                className={`tool-fav ${fav ? 'active' : ''}`}
+                onClick={(e) => {
+                  e.stopPropagation();
+                  toggleFavorite(tool.id);
+                }}
+              >
+                ★
+              </div>
+            </div>
+          );
+        })}
+      </div>
+    </section>
+  );
+}