Fix production environment variables

- Remove old Confluence variables
- Add NEXT_PUBLIC_API_URL for API access

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

terraform/outputs.tf

@@ -18,3 +18,17 @@ output "custom_domain_url" {
   value       = var.domain_name != "" ? "https://${var.domain_name}" : "Not configured"
 }
 
+output "api_url" {
+  description = "API Gateway URL"
+  value       = aws_api_gateway_stage.api.invoke_url
+}
+
+output "dynamodb_table_name" {
+  description = "DynamoDB table name"
+  value       = aws_dynamodb_table.filaments.name
+}
+
+output "api_custom_url" {
+  description = "Custom API URL via Cloudflare"
+  value       = var.domain_name != "" && var.cloudflare_api_token != "" ? "https://api.${var.domain_name}" : "Use api_url output instead"
+}