Integrate Android biometrics with the shared Rust lease (#98)

android/features/src/main/res/values/strings.xml

@@ -63,4 +63,20 @@
     <string name="password_close">Close</string>
     <string name="password_unlock">Unlock</string>
     <string name="password_lock">Lock</string>
+    <string name="auth_title">Authentication</string>
+    <string name="auth_enabled">Biometric unlock enabled</string>
+    <string name="auth_disabled">Biometric unlock disabled</string>
+    <string name="auth_enable">Enable biometric unlock</string>
+    <string name="auth_disable">Disable biometric unlock</string>
+    <string name="auth_manual">Use GPG passphrase</string>
+    <string name="auth_manual_detail">The passphrase is validated by Rust and retained only for the authentication lease.</string>
+    <string name="auth_recover_detail">After validating the passphrase, renew the enabled biometric record using a matching biometric.</string>
+    <string name="auth_enroll_title">Enroll biometric unlock</string>
+    <string name="auth_enroll_detail">Validate the GPG key passphrase, then use a strong biometric to protect it for future unlocks. A device PIN cannot substitute for a matching biometric.</string>
+    <string name="auth_continue">Continue</string>
+    <string name="auth_cancel">Cancel</string>
+    <plurals name="auth_lease">
+        <item quantity="one">Unlocked: %1$d second remaining</item>
+        <item quantity="other">Unlocked: %1$d seconds remaining</item>
+    </plurals>
 </resources>