Billing docs improvement + build opt

api/billing/documents/internal/service/documents/template.go

@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"github.com/shopspring/decimal"
+	"github.com/tech/sendico/billing/documents/internal/content"
 	"github.com/tech/sendico/billing/documents/renderer"
 	"github.com/tech/sendico/billing/documents/storage/model"
 )
@@ -17,6 +18,11 @@ type templateRenderer struct {
 	tpl *template.Template
 }
 
+type acceptanceTemplateData struct {
+	model.ActSnapshot
+	Content content.AcceptanceTemplateContent
+}
+
 func newTemplateRenderer(path string) (*templateRenderer, error) {
 	data, err := os.ReadFile(path)
 	if err != nil {
@@ -38,7 +44,12 @@ func newTemplateRenderer(path string) (*templateRenderer, error) {
 
 func (r *templateRenderer) Render(snapshot model.ActSnapshot) ([]renderer.Block, error) {
 	var buf bytes.Buffer
-	if err := r.tpl.Execute(&buf, snapshot); err != nil {
+	data := acceptanceTemplateData{
+		ActSnapshot: snapshot,
+		Content:     content.AcceptanceTemplate,
+	}
+
+	if err := r.tpl.Execute(&buf, data); err != nil {
 		return nil, fmt.Errorf("execute template: %w", err)
 	}