Fix admin credentials and frontend error handling

- Changed admin email to admin@brandmaster.com (no dash)
- Changed admin password to Admin123!
- Fixed frontend Home.jsx to handle API errors gracefully
- Added fallback to empty arrays when API calls fail
- This prevents 'Cannot read properties of undefined' crash

backend/app/config.py

@@ -10,8 +10,8 @@ class Settings(BaseSettings):
     frontend_url: str = "http://localhost:5173"
     
     # Admin user credentials (created on first startup)
-    admin_email: str = "admin@brand-master.com"
-    admin_password: str = "admin123"  # Change via ADMIN_PASSWORD env var
+    admin_email: str = "admin@brandmaster.com"
+    admin_password: str = "Admin123!"  # Change via ADMIN_PASSWORD env var
     admin_full_name: str = "System Administrator"
     
     # Email configuration for password reset

frontend/src/pages/Home.jsx

@@ -25,12 +25,17 @@ export default function Home() {
         api.get('/categories'),
       ])
 
-      setFeatured(featuredRes.data)
-      setNewArrivals(newRes.data)
-      setOnSale(saleRes.data)
-      setCategories(catRes.data)
+      setFeatured(featuredRes?.data || [])
+      setNewArrivals(newRes?.data || [])
+      setOnSale(saleRes?.data || [])
+      setCategories(catRes?.data || [])
     } catch (error) {
       console.error('Error fetching data:', error)
+      // Set empty arrays on error to prevent crashes
+      setFeatured([])
+      setNewArrivals([])
+      setOnSale([])
+      setCategories([])
     } finally {
       setLoading(false)
     }