feat: multi-module iteration

apps/h5-user/src/lib/phone.ts

@@ -0,0 +1,19 @@
+const MOBILE_PHONE_RE = /^1[3-9]\d{9}$/;
+
+export function normalizePhoneInput(value: string): string {
+  return value.replace(/\D/g, '').slice(0, 11);
+}
+
+export function validateMobilePhone(phone: string): { ok: boolean; message?: string } {
+  const trimmed = phone.trim();
+  if (!trimmed) {
+    return { ok: false, message: '请输入手机号码' };
+  }
+  if (trimmed.length !== 11) {
+    return { ok: false, message: '手机号码须为 11 位' };
+  }
+  if (!MOBILE_PHONE_RE.test(trimmed)) {
+    return { ok: false, message: '请输入正确的手机号码' };
+  }
+  return { ok: true };
+}