Add ViteHelper fallback for missing frontend assets

docker/php/Dockerfile

@@ -38,6 +38,11 @@ RUN pecl install redis && docker-php-ext-enable redis
 # Install Composer
 COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
 
+# Install Node.js for asset building
+RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
+    && apt-get install -y nodejs \
+    && rm -rf /var/lib/apt/lists/*
+
 # Create system user to run Composer and Artisan commands
 RUN useradd -G www-data,root -u 1000 -d /home/devuser devuser
 RUN mkdir -p /home/devuser/.composer && \
@@ -61,6 +66,13 @@ RUN chown -R devuser:www-data /var/www/html \
     && chmod -R 775 /var/www/html/storage 2>/dev/null || true \
     && chmod -R 775 /var/www/html/bootstrap/cache 2>/dev/null || true
 
+# Build frontend assets (if package.json exists)
+RUN if [ -f "package.json" ]; then \
+        npm ci --ignore-scripts && \
+        npm run build && \
+        rm -rf node_modules; \
+    fi
+
 # Run post-install scripts
 USER devuser
 RUN composer run-script post-autoload-dump 2>/dev/null || true