feat(fe): Add form field navigation - Enter key moves to next field

- Create useFormFieldNavigation composable for Tab-like Enter behavior
- KsTextField: Enter -> next field
- KsTextArea: Ctrl+Enter for newline, Enter -> next field
- KsSelect: Enter -> next field after selection
- Implements standard form navigation pattern across input components

frontend/src/app/router.ts

@@ -22,6 +22,8 @@ export const router = createRouter({
     // KBX v60 Pages
     { path: '/model-ops/shadow-run-jobs', component: () => import('../features/shadow-run/pages/ShadowRunQueue.vue'), meta: { screenId: 'model-ops.shadow-run.queue', module: 'ModelOps', title: 'Shadow Run Jobs', permissions: ['model.read'] } },
     { path: '/model-ops/models-master', component: () => import('../features/models/pages/ModelList.vue'), meta: { screenId: 'model-ops.models.master', module: 'ModelOps', title: 'Models (Master-Detail)', permissions: ['model.read'] } },
+    { path: '/system/common-codes', component: () => import('../features/system/pages/CommonCodeManagementPage.vue'), meta: { screenId: 'SCR-SYS-001', templateId: 'T01', module: 'System', section: 'System', title: '공통코드 관리', order: 1, favoriteAllowed: true } },
     { path: '/governance/approvals', component: () => import('../features/approval/pages/ApprovalQueue.vue'), meta: { screenId: 'governance.approval.queue', module: 'Governance', title: 'Approval Queue', permissions: ['approval.review'] } }
   ]
 })
+