feat(setup): 폐쇄망 완전 오프라인 설치 지원

[download_packages.sh — 인터넷 서버에서 실행]
- OS별 패키지 다운로드 (ubuntu .deb / centos .rpm)
- pip wheel 전체 다운로드 (-r requirements.txt)
- Tomcat 9 tar.gz, Ollama 바이너리, Chart.js 다운로드
- Ollama 모델(llama3.1:8b, codellama:7b) 압축 패키지
- Docker 이미지 tar (docker_package.sh 연동)
- setup/offline/ 에 계층적으로 저장, README.md 자동 생성

[설치 스크립트 오프라인 지원 강화]
- setup_ubuntu.sh: OFFLINE_PKG_DIR 환경변수 지원 (.deb 로컬 설치)
- setup_centos.sh: OFFLINE_PKG_DIR 환경변수 지원 (.rpm 로컬 설치)
- 기존 TOMCAT_MIRROR=file://..., OLLAMA_INSTALL=offline 유지

[Chart.js 오프라인 폴백]
- index.html: CDN 실패 시 /static/chart.umd.min.js 로컬 폴백
- db_init.py: 오프라인 패키지에서 chart.umd.min.js 자동 복사

폐쇄망 설치 절차:
  인터넷 서버: bash setup/download_packages.sh all
  USB 복사:    tar -czf offline.tar.gz setup/offline/
  폐쇄망 설치: OFFLINE_PKG_DIR=./offline/ubuntu bash setup/setup_ubuntu.sh

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

static/index.html

@@ -5,6 +5,22 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>GUARDiA ITSM</title>
   <link rel="stylesheet" href="/static/style.css">
+  <!-- Chart.js — 대시보드 차트 (CDN 실패 시 로컬 폴백) -->
+  <script>
+    (function() {
+      var s = document.createElement('script');
+      s.src = 'https://cdn.jsdelivr.net/npm/chart.js@4.4.0/dist/chart.umd.min.js';
+      s.crossOrigin = 'anonymous';
+      s.onerror = function() {
+        // 폐쇄망 폴백: /static/chart.umd.min.js (오프라인 설치 시 복사됨)
+        var local = document.createElement('script');
+        local.src = '/static/chart.umd.min.js';
+        local.onerror = function() { window._chartjsUnavailable = true; };
+        document.head.appendChild(local);
+      };
+      document.head.appendChild(s);
+    })();
+  </script>
   <!-- F-4: PWA -->
   <link rel="manifest" href="/static/manifest.json">
   <meta name="theme-color" content="#4f8ef7">
@@ -143,59 +159,163 @@
 
     <!-- Views -->
     <div id="view-dashboard" class="view active">
-      <div class="stats-row" id="stats-row">
+      <!-- KPI 카드 행 -->
-        <!-- filled by JS -->
+      <div class="stats-row" id="stats-row"><!-- filled by JS --></div>
+
+      <!-- ── 대시보드 탭 ── -->
+      <div class="dash-tab-nav" id="dash-tab-nav">
+        <button class="dash-tab active" data-tab="ops"      onclick="switchDashTab('ops')">📊 운영 현황</button>
+        <button class="dash-tab"        data-tab="infra"    onclick="switchDashTab('infra')">🖥️ 인프라</button>
+        <button class="dash-tab"        data-tab="security" onclick="switchDashTab('security')">🔒 보안</button>
+        <button class="dash-tab"        data-tab="ai"       onclick="switchDashTab('ai')">🤖 AI 인사이트</button>
       </div>
-      <div class="dashboard-grid">
+
-        <div class="card" id="recent-list-card">
+      <!-- ═══ 탭 1: 운영 현황 ═══ -->
-          <div class="card-header">최근 SR</div>
+      <div class="dash-tab-panel active" id="dash-panel-ops">
-          <div class="card-body" id="recent-list"></div>
+        <div class="chart-grid-2">
-        </div>
+          <!-- SR 상태 도넛 -->
-        <div class="card" id="status-chart-card">
+          <div class="card chart-card">
-          <div class="card-header">상태별 현황</div>
+            <div class="card-header">SR 상태 분포</div>
-          <div class="card-body" id="status-chart"></div>
+            <div class="card-body chart-body">
-        </div>
+              <canvas id="chart-sr-status"></canvas>
-      </div>
-      <!-- 엔지니어 워크로드 패널 -->
-      <div class="card" id="workload-card" style="margin-top:18px">
-        <div class="card-header" style="display:flex;align-items:center;justify-content:space-between">
-          <span>👷 엔지니어 워크로드</span>
-          <button class="btn btn-secondary" style="font-size:12px;padding:4px 10px"
-                  onclick="loadWorkload()">새로고침</button>
-        </div>
-        <div class="card-body" id="workload-body">
-          <div style="color:var(--text-muted);font-size:13px;padding:12px 18px">로딩 중…</div>
-        </div>
-      </div>
-      <!-- 7일 SR 추이 차트 (ADMIN/PM 전용 — JS 제어) -->
-      <div id="trend-chart-card" class="card" style="margin-top:18px;display:none">
-        <div class="card-header" style="display:flex;align-items:center;justify-content:space-between">
-          <span>📈 최근 7일 SR 추이</span>
-          <span id="trend-last-updated" style="font-size:11px;color:var(--text-muted)"></span>
-        </div>
-        <div class="card-body" style="padding:16px 18px">
-          <div id="trend-chart" class="trend-chart"></div>
-          <div class="trend-legend">
-            <div class="trend-legend-item">
-              <div class="trend-legend-dot" style="background:#818cf8"></div><span>생성</span>
             </div>
-            <div class="trend-legend-item">
+          </div>
-              <div class="trend-legend-dot" style="background:#34d399"></div><span>완료</span>
+          <!-- 우선순위 바 -->
+          <div class="card chart-card">
+            <div class="card-header">우선순위별 SR</div>
+            <div class="card-body chart-body">
+              <canvas id="chart-sr-priority"></canvas>
             </div>
           </div>
         </div>
-      </div>
+        <!-- 7일 SR 추이 -->
-      <!-- 7일 추이 차트 (ADMIN/PM 전용 — JS가 표시 여부 제어) -->
+        <div class="card" style="margin-top:14px">
-      <div id="trend-chart-card" class="card" style="margin-top:16px;display:none">
+          <div class="card-header" style="display:flex;align-items:center;justify-content:space-between">
-        <div class="card-header" style="display:flex;align-items:center;justify-content:space-between">
+            <span>📈 최근 7일 SR 추이</span>
-          <span>📈 최근 7일 SR 추이</span>
+            <button class="btn btn-secondary" style="font-size:11px;padding:3px 8px"
-          <span id="trend-last-updated" style="font-size:11px;color:var(--text-muted)"></span>
+                    onclick="loadDashboardCharts()">새로고침</button>
+          </div>
+          <div class="card-body" style="padding:14px 16px">
+            <canvas id="chart-sr-trend" style="max-height:200px"></canvas>
+          </div>
         </div>
-        <div class="card-body" style="padding:16px">
+        <!-- 엔지니어 워크로드 + 최근 SR -->
-          <div id="trend-chart" class="trend-chart"></div>
+        <div class="chart-grid-2" style="margin-top:14px">
+          <div class="card chart-card">
+            <div class="card-header">👷 엔지니어 워크로드</div>
+            <div class="card-body" id="workload-body">
+              <div style="color:var(--text-muted);font-size:13px;padding:8px">로딩 중…</div>
+            </div>
+          </div>
+          <div class="card chart-card">
+            <div class="card-header">최근 SR</div>
+            <div class="card-body" id="recent-list" style="overflow-y:auto;max-height:260px"></div>
+          </div>
         </div>
       </div>
-    </div>
+
+      <!-- ═══ 탭 2: 인프라 ═══ -->
+      <div class="dash-tab-panel" id="dash-panel-infra">
+        <div class="chart-grid-2">
+          <!-- 기관별 SR 수평 바 -->
+          <div class="card chart-card">
+            <div class="card-header">기관별 SR 현황 (Top 10)</div>
+            <div class="card-body chart-body">
+              <canvas id="chart-inst-sr"></canvas>
+            </div>
+          </div>
+          <!-- 서버 OS 분포 -->
+          <div class="card chart-card">
+            <div class="card-header">서버 OS 분포</div>
+            <div class="card-body chart-body">
+              <canvas id="chart-os-dist"></canvas>
+            </div>
+          </div>
+        </div>
+        <!-- CMDB 서버 상태 그리드 -->
+        <div class="card" style="margin-top:14px">
+          <div class="card-header">서버 헬스 현황</div>
+          <div class="card-body" id="server-health-grid"
+               style="display:flex;flex-wrap:wrap;gap:8px;padding:14px 16px">
+            <div style="color:var(--text-muted);font-size:13px">로딩 중…</div>
+          </div>
+        </div>
+        <!-- SSL 만료 현황 -->
+        <div class="card" style="margin-top:14px">
+          <div class="card-header">🔐 SSL 인증서 만료 현황</div>
+          <div class="card-body chart-body" style="max-height:220px">
+            <canvas id="chart-ssl-expiry"></canvas>
+          </div>
+        </div>
+      </div>
+
+      <!-- ═══ 탭 3: 보안 ═══ -->
+      <div class="dash-tab-panel" id="dash-panel-security">
+        <div class="chart-grid-2">
+          <!-- 취약점 심각도 바 -->
+          <div class="card chart-card">
+            <div class="card-header">취약점 심각도 분포</div>
+            <div class="card-body chart-body">
+              <canvas id="chart-vuln-severity"></canvas>
+            </div>
+          </div>
+          <!-- 패치율 도넛 -->
+          <div class="card chart-card">
+            <div class="card-header">패치 적용 현황</div>
+            <div class="card-body chart-body">
+              <canvas id="chart-patch-rate"></canvas>
+            </div>
+          </div>
+        </div>
+        <!-- PAM 세션 + 감사 로그 -->
+        <div class="chart-grid-2" style="margin-top:14px">
+          <div class="card chart-card">
+            <div class="card-header">🔑 PAM 세션 현황</div>
+            <div class="card-body" id="pam-status-body"
+                 style="padding:14px 16px;font-size:13px">로딩 중…</div>
+          </div>
+          <div class="card chart-card">
+            <div class="card-header">📋 최근 감사 로그</div>
+            <div class="card-body" id="audit-body"
+                 style="overflow-y:auto;max-height:260px"></div>
+          </div>
+        </div>
+      </div>
+
+      <!-- ═══ 탭 4: AI 인사이트 ═══ -->
+      <div class="dash-tab-panel" id="dash-panel-ai">
+        <div class="chart-grid-2">
+          <!-- AI 티켓 분류 분포 -->
+          <div class="card chart-card">
+            <div class="card-header">🤖 AI 티켓 분류 현황</div>
+            <div class="card-body chart-body">
+              <canvas id="chart-ai-category"></canvas>
+            </div>
+          </div>
+          <!-- 이상 탐지 추이 -->
+          <div class="card chart-card">
+            <div class="card-header">⚡ 이상 탐지 추이 (7일)</div>
+            <div class="card-body chart-body">
+              <canvas id="chart-anomaly-trend"></canvas>
+            </div>
+          </div>
+        </div>
+        <!-- 예측 유지보수 + 학습 루프 -->
+        <div class="chart-grid-2" style="margin-top:14px">
+          <div class="card chart-card">
+            <div class="card-header">🔧 예측 유지보수 위험 서버</div>
+            <div class="card-body" id="predictive-body"
+                 style="padding:14px 16px;font-size:13px">로딩 중…</div>
+          </div>
+          <div class="card chart-card">
+            <div class="card-header">📚 학습 루프 현황</div>
+            <div class="card-body" id="learning-body"
+                 style="padding:14px 16px;font-size:13px">로딩 중…</div>
+          </div>
+        </div>
+      </div>
+
+    </div><!-- /view-dashboard -->
 
     <div id="view-board" class="view">
       <div id="kanban-board">

tools/db_init.py

@@ -112,5 +112,16 @@ async def main():
     print("[OK] DB 초기화 완료")
 
 
+def _copy_offline_assets():
+    """폐쇄망 정적 파일 복사 (있는 경우)."""
+    import shutil
+    offline_chart = ITSM_DIR.parent / "setup" / "offline" / "common" / "chart.umd.min.js"
+    target_chart  = ITSM_DIR / "static" / "chart.umd.min.js"
+    if offline_chart.exists() and not target_chart.exists():
+        shutil.copy2(offline_chart, target_chart)
+        print(f"[OK] Chart.js 오프라인 파일 복사: {target_chart}")
+
+
 if __name__ == "__main__":
+    _copy_offline_assets()
     asyncio.run(main())