feat: add dashboard page with stats, quick actions, recent vehicles, update navigation and login redirect

frontend/messages/en.json

@@ -19,6 +19,24 @@
   "nav.retouch": "Image Retouch",
   "nav.menu": "Menu",
   "nav.appName": "ERP Commercial Vehicles",
+  "dashboard.title": "Dashboard",
+  "dashboard.totalVehicles": "Total Vehicles",
+  "dashboard.available": "Available",
+  "dashboard.reserved": "Reserved",
+  "dashboard.sold": "Sold",
+  "dashboard.totalValue": "Total Value",
+  "dashboard.quickActions": "Quick Actions",
+  "dashboard.newVehicle": "New Vehicle",
+  "dashboard.newContact": "New Contact",
+  "dashboard.newSale": "New Sale",
+  "dashboard.recentVehicles": "Recent Vehicles",
+  "dashboard.noVehicles": "No vehicles available",
+  "dashboard.error": "Error loading data",
+  "dashboard.make": "Make",
+  "dashboard.model": "Model",
+  "dashboard.fin": "VIN",
+  "dashboard.price": "Price",
+  "dashboard.availability": "Availability",
   "common.save": "Save",
   "common.cancel": "Cancel",
   "common.delete": "Delete",