feat: enabled compression and uploading public assets

[RomanBobrovskiy]

Enable Public Assets Support and Optimize CloudFront Caching

Overview

This PR adds support for public assets handling, optimizes CloudFront caching configurations, and fixes DynamoDB tags validation issues.

Key Changes

1. Public Assets Support

• Added automatic copying of public folder to standalone output
• Implemented S3 upload functionality for public assets with configurable prefix
• Added new CloudFront behavior pattern for public assets

2. CloudFront Optimizations

• Enabled Brotli and Gzip compression for all cache policies
• Added compression support for CloudFront behaviors
• Introduced new dedicated cache policy for public assets
• Updated cache policy configurations with compression settings

Configuration Updates

Added new configuration options in DeployConfig:

interface DeployConfig {
 cache: CacheConfig;
 publicAssets?: {
  prefix: string; // URL prefix for public assets
  ttl?: number; // Cache TTL in seconds
 }
}