add telephone link

src/utils/telephone.ts

@@ -0,0 +1,25 @@
+export function normalizeTelephone(value?: string): string {
+	if (!value) {
+		return "";
+	}
+
+	const trimmedValue = value.trim();
+	if (!trimmedValue) {
+		return "";
+	}
+
+	const normalizedValue = trimmedValue.startsWith("+")
+		? `+${trimmedValue.slice(1).replace(/\D/g, "")}`
+		: trimmedValue.replace(/\D/g, "");
+	return normalizedValue === "+" ? "" : normalizedValue;
+}
+
+export function canDialTelephone(value?: string): boolean {
+	const normalizedValue = normalizeTelephone(value);
+	return 2 < normalizedValue.replace("+", "").length;
+}
+
+export function buildTelephoneURL(value?: string): string {
+	const normalizedValue = normalizeTelephone(value);
+	return normalizedValue ? `tel:${normalizedValue}` : "";
+}