feat: Add JWT auth and nomenclature sync to data-entry-app

Integrate shared JWT authentication into data-entry-app:
- Add Oracle pool initialization for auth service
- Add AuthenticationMiddleware to protect API routes
- Update all receipt endpoints to use CurrentUser from JWT
- Add shared auth router (/api/auth/login, /api/auth/refresh)

Add nomenclature synchronization feature:
- Create SQLite models for synced suppliers, local suppliers, and cash registers
- Add nomenclature router with sync triggers and CRUD endpoints
- Add sync service for Oracle → SQLite nomenclature data
- Update nomenclature_service to use synced SQLite data with fallbacks

Create shared frontend components:
- Add shared/frontend/ with LoginView.vue, auth store factory, login.css
- Integrate shared login and auth into data-entry-app frontend
- Add axios-based API service with token refresh interceptor

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

data-entry-app/frontend/src/router/index.js

@@ -1,35 +1,42 @@
 import { createRouter, createWebHistory } from 'vue-router'
+import { useAuthStore } from '@/stores/auth'
 
 const routes = [
+  {
+    path: '/login',
+    name: 'Login',
+    component: () => import('../views/LoginView.vue'),
+    meta: { title: 'Conectare', requiresAuth: false }
+  },
   {
     path: '/',
     name: 'ReceiptsList',
     component: () => import('../views/receipts/ReceiptsListView.vue'),
-    meta: { title: 'Lista Bonuri' }
+    meta: { title: 'Lista Bonuri', requiresAuth: true }
   },
   {
     path: '/create',
     name: 'ReceiptCreate',
     component: () => import('../views/receipts/ReceiptCreateView.vue'),
-    meta: { title: 'Bon Nou' }
+    meta: { title: 'Bon Nou', requiresAuth: true }
   },
   {
     path: '/receipt/:id',
     name: 'ReceiptDetail',
     component: () => import('../views/receipts/ReceiptDetailView.vue'),
-    meta: { title: 'Detalii Bon' }
+    meta: { title: 'Detalii Bon', requiresAuth: true }
   },
   {
     path: '/receipt/:id/edit',
     name: 'ReceiptEdit',
     component: () => import('../views/receipts/ReceiptCreateView.vue'),
-    meta: { title: 'Editare Bon' }
+    meta: { title: 'Editare Bon', requiresAuth: true }
   },
   {
     path: '/approval',
     name: 'ReceiptApproval',
     component: () => import('../views/receipts/ReceiptApprovalView.vue'),
-    meta: { title: 'Aprobare Bonuri' }
+    meta: { title: 'Aprobare Bonuri', requiresAuth: true }
   }
 ]
 
@@ -38,12 +45,26 @@ const router = createRouter({
   routes
 })
 
-// Update page title
+// Authentication guard and page title
 router.beforeEach((to, from, next) => {
+  // Update page title
   document.title = to.meta.title
     ? `${to.meta.title} | Data Entry`
     : 'Data Entry - Bonuri Fiscale'
-  next()
+
+  // Check authentication
+  const authStore = useAuthStore()
+  const requiresAuth = to.meta.requiresAuth !== false
+
+  if (requiresAuth && !authStore.isAuthenticated) {
+    // Redirect to login if not authenticated
+    next({ name: 'Login', query: { redirect: to.fullPath } })
+  } else if (to.name === 'Login' && authStore.isAuthenticated) {
+    // Redirect to home if already authenticated
+    next({ name: 'ReceiptsList' })
+  } else {
+    next()
+  }
 })
 
 export default router