Add beenvoice mobile companion app with full dark mode support.

Expo app with dashboard, time clock, invoices, and settings — native tabs, glass UI, theme-aware components, and iOS Live Activities.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/app-lock.ts

@@ -0,0 +1,47 @@
+import * as SecureStore from "expo-secure-store";
+
+const ENABLED_KEY = "beenvoice_app_lock_enabled";
+const PIN_KEY = "beenvoice_app_lock_pin";
+const BIOMETRIC_KEY = "beenvoice_app_lock_biometric";
+
+export async function getAppLockEnabled(): Promise<boolean> {
+  const value = await SecureStore.getItemAsync(ENABLED_KEY);
+  return value === "1";
+}
+
+export async function setAppLockEnabled(enabled: boolean): Promise<void> {
+  if (enabled) {
+    await SecureStore.setItemAsync(ENABLED_KEY, "1");
+  } else {
+    await SecureStore.deleteItemAsync(ENABLED_KEY);
+  }
+}
+
+export async function getStoredPin(): Promise<string | null> {
+  return SecureStore.getItemAsync(PIN_KEY);
+}
+
+export async function setStoredPin(pin: string): Promise<void> {
+  await SecureStore.setItemAsync(PIN_KEY, pin);
+}
+
+export async function clearStoredPin(): Promise<void> {
+  await SecureStore.deleteItemAsync(PIN_KEY);
+}
+
+export async function getBiometricEnabled(): Promise<boolean> {
+  const value = await SecureStore.getItemAsync(BIOMETRIC_KEY);
+  return value === "1";
+}
+
+export async function setBiometricEnabled(enabled: boolean): Promise<void> {
+  if (enabled) {
+    await SecureStore.setItemAsync(BIOMETRIC_KEY, "1");
+  } else {
+    await SecureStore.deleteItemAsync(BIOMETRIC_KEY);
+  }
+}
+
+export function isValidPin(pin: string): boolean {
+  return /^\d{4,6}$/.test(pin);
+}