Initial commit of Descrybe v2 without local scratch artifacts.

Drop one-shot tmp/axe scripts and agent i18n scratch so the Gitea tree is deployable.

apps/api/internal/billing/stripe_sales_quote_test.go

@@ -0,0 +1,46 @@
+package billing
+
+import (
+	"testing"
+	"time"
+)
+
+func TestSalesQuoteCancelAt(t *testing.T) {
+	now := time.Date(2026, 8, 8, 12, 0, 0, 0, time.UTC)
+	got, err := salesQuoteCancelAt(now, 4, "month")
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := time.Date(2026, 12, 8, 12, 0, 0, 0, time.UTC)
+	if !got.Equal(want) {
+		t.Fatalf("month cancel_at = %v, want %v", got, want)
+	}
+	got, err = salesQuoteCancelAt(now, 2, "quarter")
+	if err != nil {
+		t.Fatal(err)
+	}
+	want = time.Date(2027, 2, 8, 12, 0, 0, 0, time.UTC)
+	if !got.Equal(want) {
+		t.Fatalf("quarter cancel_at = %v, want %v", got, want)
+	}
+	got, err = salesQuoteCancelAt(now, 1, "year")
+	if err != nil {
+		t.Fatal(err)
+	}
+	want = time.Date(2027, 8, 8, 12, 0, 0, 0, time.UTC)
+	if !got.Equal(want) {
+		t.Fatalf("year cancel_at = %v, want %v", got, want)
+	}
+}
+
+func TestStripeRecurringFromInstallment(t *testing.T) {
+	iv, n, err := stripeRecurringFromInstallment("quarter")
+	if err != nil || iv != "month" || n != 3 {
+		t.Fatalf("quarter => %s/%d err=%v", iv, n, err)
+	}
+	iv, n, err = stripeRecurringFromInstallment("month")
+	if err != nil || iv != "month" || n != 1 {
+		t.Fatalf("month => %s/%d err=%v", iv, n, err)
+	}
+}
+