Add frontend asset build to setup scripts

Added Step 11 to both setup.bat and setup.sh:
- Run npm install to install dependencies
- Run npm run build to compile Vite assets
- Creates public/build/manifest.json

This fixes the 'Vite manifest not found' error that occurred
when trying to login after fresh setup.

The node container is used for npm commands since the app
container doesn't have Node.js installed.

setup.bat

@@ -212,6 +212,13 @@ docker-compose exec -T app php artisan storage:link
 echo Storage linked
 echo.
 
+REM Step 11: Build frontend assets
+echo Building frontend assets...
+docker-compose run --rm node npm install >nul 2>&1
+docker-compose run --rm node npm run build >nul 2>&1
+echo Frontend assets built
+echo.
+
 REM Done
 echo.
 echo ========================================================

setup.sh

@@ -187,6 +187,13 @@ docker-compose exec app php artisan storage:link
 echo -e "${GREEN}✓ Storage linked${NC}"
 echo ""
 
+# Step 11: Build frontend assets
+echo -e "${YELLOW}→ Building frontend assets...${NC}"
+docker-compose run --rm node npm install >/dev/null 2>&1
+docker-compose run --rm node npm run build >/dev/null 2>&1
+echo -e "${GREEN}✓ Frontend assets built${NC}"
+echo ""
+
 # Done!
 echo ""
 echo -e "${GREEN}╔════════════════════════════════════════════════════════╗${NC}"