feat: TOTP 2차 인증, 관리자 메뉴/대시보드 및 의존성 반영

- robthree/twofactorauth, Auth 설정·TotpService·2FA 뷰·라우트
- member TOTP 컬럼 DDL(login_tables, member_add_totp.sql)
- 관리자 메뉴·레이아웃·필터·대시보드 등 연관 변경
- env 샘플에 auth.requireTotp 주석

Made-with: Cursor

app/Views/bag/lg_dashboard_dense.php

@@ -11,6 +11,7 @@ $dashClassic = base_url('dashboard/classic-mock');
 $dashModern  = base_url('dashboard/modern');
 $dashDense   = base_url('dashboard/dense');
 $dashCharts  = base_url('dashboard/charts');
+$dashBlend   = base_url('dashboard/blend');
 
 $kpiTop = [
     ['icon' => 'fa-triangle-exclamation', 'c' => 'text-amber-700', 'bg' => 'bg-amber-50', 'v' => '3', 'l' => '재고부족', 'sub' => '품목'],
@@ -126,6 +127,8 @@ $notices = [
         <span class="text-gray-300 hidden md:inline">|</span>
         <a href="<?= esc($dashModern) ?>" class="text-[#2b4c8c] hover:underline whitespace-nowrap hidden md:inline">모던</a>
         <span class="text-gray-300 hidden md:inline">|</span>
+        <a href="<?= esc($dashBlend) ?>" class="text-[#2b4c8c] hover:underline whitespace-nowrap hidden md:inline" title="표+차트 혼합">혼합</a>
+        <span class="text-gray-300 hidden md:inline">|</span>
         <a href="<?= esc($dashCharts) ?>" class="text-[#2b4c8c] hover:underline whitespace-nowrap hidden md:inline" title="그래프 대시보드">차트</a>
         <a href="<?= base_url('logout') ?>" class="text-gray-500 hover:text-gray-800 p-1 ml-1" title="로그아웃">
           <i class="fa-solid fa-arrow-right-from-bracket"></i>
@@ -384,6 +387,7 @@ $notices = [
       레이아웃: <a href="<?= esc($dashClassic) ?>" class="text-[#2b4c8c] hover:underline">/dashboard</a>
       · <a href="<?= esc($dashModern) ?>" class="text-[#2b4c8c] hover:underline">/dashboard/modern</a>
       · <strong class="text-gray-600">/dashboard/dense</strong> (이 화면)
+      · <a href="<?= esc($dashBlend) ?>" class="text-[#2b4c8c] hover:underline">/dashboard/blend</a>
       · <a href="<?= esc($dashCharts) ?>" class="text-[#2b4c8c] hover:underline">/dashboard/charts</a>
     </p>
   </main>