feat(tksafety): 테마 색상 주황→파랑 변경 (tkfb와 시각적 구분)

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

tksafety/web/static/js/tksafety-training.js

@@ -33,7 +33,7 @@ function renderPendingTraining() {
         <td class="hide-mobile">${r.visit_time ? String(r.visit_time).substring(0, 5) : '-'}</td>
         <td>${escapeHtml(r.purpose_name || '-')}</td>
         <td class="text-right">
-            <button onclick="openTrainingModal(${r.request_id})" class="text-orange-600 hover:text-orange-800 text-xs px-2 py-1 border border-orange-200 rounded hover:bg-orange-50">
+            <button onclick="openTrainingModal(${r.request_id})" class="text-blue-600 hover:text-blue-800 text-xs px-2 py-1 border border-blue-200 rounded hover:bg-blue-50">
                 <i class="fas fa-chalkboard-teacher mr-1"></i>교육실시
             </button>
         </td>