fix(status): any Lotus device clears an auto-expiring status, not just the one that set it (#300)

"Clear after 1 hour" lived in that device's localStorage, so a status
set on a laptop that was then closed stayed on the server until the
laptop opened Lotus again. The expiry is now also kept in account data
(io.lotus.status_expiry: { status_msg, expires_at }). Every device's
StatusExpiryMonitor clears the status when due, but only if it is still
the one that was set to expire (otherwise it just forgets the expiry).

Fixes #300

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/features/settings/account/Profile.tsx

@@ -67,6 +67,7 @@ import {
   makePresetId,
   normalizeLabel,
 } from '../../../utils/statusPresets';
+import { writeStatusExpiry } from '../../../utils/statusExpiry';
 
 type ProfileProps = {
   profile: UserProfile;
@@ -508,12 +509,16 @@ function ProfileStatus() {
       if (msg && delayMs > 0) {
         // Persist the expiry timestamp; the always-mounted StatusExpiryMonitor
         // (ClientNonUIFeatures) fires the auto-clear even when Settings is closed.
-        localStorage.setItem(STATUS_EXPIRY_KEY(userId), String(Date.now() + delayMs));
+        const expiresAt = Date.now() + delayMs;
+        localStorage.setItem(STATUS_EXPIRY_KEY(userId), String(expiresAt));
+        // [Gitea #300] …and on every other Lotus device, via account data.
+        writeStatusExpiry(mx, msg, expiresAt).catch(() => undefined);
       } else {
         localStorage.removeItem(STATUS_EXPIRY_KEY(userId));
+        writeStatusExpiry(mx, msg).catch(() => undefined);
       }
     },
-    [saveStatus, userId],
+    [saveStatus, userId, mx],
   );
 
   const handleSubmit: FormEventHandler<HTMLFormElement> = (evt) => {
@@ -553,6 +558,7 @@ function ProfileStatus() {
     setStatusMsg('');
     localStorage.removeItem(STATUS_MSG_KEY(userId));
     localStorage.removeItem(STATUS_EXPIRY_KEY(userId));
+    writeStatusExpiry(mx, '').catch(() => undefined);
     // Preserve the user's chosen presence when clearing the status message.
     mx.setPresence({
       presence: presenceStateFromSetting(presenceStatus, hidePresence),