merge: integrate collaborator features and synchronize with shared DB infrastructure

src/components/Navigation.ts

@@ -3,7 +3,7 @@ import { state } from '../core/state';
 const MENU_CONFIG = {
   hw: {
     label: '하드웨어',
-    tabs: ['대시보드', '개인PC', '서버', '스토리지', '전산비품']
+    tabs: ['대시보드', '개인PC', '서버', '스토리지', '전산비품', '모바일기기']
   },
   sw: {
     label: '소프트웨어',
@@ -38,7 +38,7 @@ export function renderNavigation(onTabChange: (tab: string) => void) {
         if (state.activeCategory !== catKey) {
           state.activeCategory = catKey;
           state.activeSubTab = '대시보드';
-          if (btnAddAsset) btnAddAsset.classList.add('hidden');
+          if (btnAddAsset) btnAddAsset.classList.remove('hidden');
           render();
           onTabChange('대시보드');
         }
@@ -60,8 +60,7 @@ export function renderNavigation(onTabChange: (tab: string) => void) {
           state.activeSubTab = tab;
           
           if (btnAddAsset) {
-            if (tab === '대시보드') btnAddAsset.classList.add('hidden');
-            else btnAddAsset.classList.remove('hidden');
+            btnAddAsset.classList.remove('hidden');
           }
           
           render();