Migrate frontend from Amplify to CloudFront + S3

- Add CloudFront distribution with S3 origin
- Configure S3 bucket with website hosting
- Add Origin Access Control (OAC) for security
- Configure SPA error handling (404/403 -> index.html)
- Add Cloudflare DNS records (commented out due to invalid token)
- Add deployment script for future updates
- Update outputs to include CloudFront info

terraform/outputs.tf

@@ -59,3 +59,24 @@ output "aws_region" {
   description = "AWS Region"
 }
 
+# CloudFront + S3 Frontend Outputs
+output "s3_bucket_name" {
+  value       = aws_s3_bucket.frontend.id
+  description = "S3 bucket name for frontend"
+}
+
+output "cloudfront_distribution_id" {
+  value       = aws_cloudfront_distribution.frontend.id
+  description = "CloudFront distribution ID"
+}
+
+output "cloudfront_domain_name" {
+  value       = aws_cloudfront_distribution.frontend.domain_name
+  description = "CloudFront distribution domain name"
+}
+
+output "frontend_url" {
+  value       = var.domain_name != "" ? "https://${var.domain_name}" : "https://${aws_cloudfront_distribution.frontend.domain_name}"
+  description = "Frontend URL"
+}
+