package libimport (	"html/template"	"strings"	"github.com/yuin/goldmark/v2/parser"	"github.com/yuin/goldmark/v2/renderer/html")var (	markdownParser   = parser.New()	markdownRenderer = html.New())// optimizations props to claude opus 5func FormatMarkdown(source []byte) (template.HTML, error) {	var sb strings.Builder	sb.Grow(len(source) + len(source)/2) // rendered html runs ~1.2-1.3x the source	doc := markdownParser.Parse(source)	if err := markdownRenderer.Render(&sb, source, doc); err != nil {		return "", err	}	return template.HTML(sb.String()), nil}