chore(release): v1.34.21 — macOS updater UI fix + second test build

- AppUpdater.tsx: macOS now has a dedicated branch in the update modal —
  no architecture-specific DMG asset shown (the Tauri Updater picks the
  right platform from latest.json), clearer wording ("Downloads, verifies
  and installs automatically"), and the primary button reads "Install
  now" instead of "Download". Strings use defaultValue so locales without
  the key fall back to English until translations catch up.
- Test release for the updater pipeline; CHANGELOG entry asks users to
  ignore it. Will be deleted after the test.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/AppUpdater.tsx

@@ -159,6 +159,10 @@ export default function AppUpdater() {
 
   const asset = pickAsset(release.assets);
   const showAurHint = IS_LINUX && isArch;
+  // On macOS the Tauri Updater handles architecture, signature verification
+  // and in-place install — we don't need (and should not show) a DMG asset.
+  const useTauriUpdater = IS_MACOS;
+  const showInstallBtn = !showAurHint && (useTauriUpdater || !!asset);
 
   const handleSkip = () => {
     localStorage.setItem(SKIP_KEY, release.version);
@@ -309,6 +313,40 @@ export default function AppUpdater() {
               <code className="update-modal-aur-cmd">yay -S psysonic-bin</code>
               <code className="update-modal-aur-cmd update-modal-aur-alt">sudo pacman -Syu psysonic-bin</code>
             </div>
+          ) : useTauriUpdater ? (
+            <>
+              {dlState === 'idle' && (
+                <div className="update-modal-asset">
+                  <span className="update-modal-asset-name">
+                    {t('common.updaterMacReady', {
+                      defaultValue: 'Downloads, verifies and installs automatically. The app will restart when done.',
+                    })}
+                  </span>
+                </div>
+              )}
+              {dlState === 'downloading' && (
+                <div className="update-modal-progress">
+                  <div className="app-updater-progress-bar">
+                    <div className="app-updater-progress-fill" style={{ width: `${pct}%` }} />
+                  </div>
+                  <span className="app-updater-pct">{pct}%</span>
+                  <span className="update-modal-dl-bytes">
+                    {fmtBytes(dlProgress.bytes)}
+                    {dlProgress.total > 0 && ` / ${fmtBytes(dlProgress.total)}`}
+                  </span>
+                </div>
+              )}
+              {dlState === 'done' && (
+                <div className="update-modal-done">
+                  <div className="update-modal-done-title">
+                    {t('common.updaterMacDone', { defaultValue: 'Installed. Restarting…' })}
+                  </div>
+                </div>
+              )}
+              {dlState === 'error' && (
+                <div className="app-updater-error">{dlError || t('common.updaterErrorMsg')}</div>
+              )}
+            </>
           ) : asset ? (
             <>
               {dlState === 'idle' && (
@@ -365,10 +403,12 @@ export default function AppUpdater() {
           <button className="btn btn-surface" onClick={() => setDismissed(true)}>
             {t('common.updaterRemindBtn')}
           </button>
-          {!showAurHint && asset && dlState === 'idle' && (
+          {showInstallBtn && dlState === 'idle' && (
             <button className="btn btn-primary" onClick={handleDownload}>
               <Download size={14} />
-              {t('common.updaterDownloadBtn')}
+              {useTauriUpdater
+                ? t('common.updaterInstallNow', { defaultValue: 'Install now' })
+                : t('common.updaterDownloadBtn')}
             </button>
           )}
           {dlState === 'error' && (