release: prepare Twitch VOD Manager 1.0.2

Redesign the seven-area desktop workspace with responsive navigation, searchable settings, localized controls, and accessible update states.

Harden Electron release coverage with fully isolated user data, download paths, offline fixtures, concurrency checks, and public-release manifest validation.

src/renderer-stats.ts

@@ -1,6 +1,13 @@
+let archiveStatsRefreshInFlight = false;
+
 async function refreshArchiveStats(): Promise<void> {
+    if (archiveStatsRefreshInFlight) return;
+
     const btn = document.getElementById('btnStatsRefresh') as HTMLButtonElement | null;
+    const toolbarBtn = document.getElementById('toolbarStatsRefreshBtn') as HTMLButtonElement | null;
+    archiveStatsRefreshInFlight = true;
     if (btn) btn.disabled = true;
+    if (toolbarBtn) toolbarBtn.disabled = true;
     const lastLabel = document.getElementById('statsLastScannedLabel');
     if (lastLabel) lastLabel.textContent = (UI_TEXT.static.statsScanning as string) || 'Scanning...';
 
@@ -9,9 +16,11 @@ async function refreshArchiveStats(): Promise<void> {
         renderArchiveStats(stats);
     } catch (e) {
         const summary = document.getElementById('statsSummaryGrid');
-        if (summary) summary.textContent = `Fehler: ${String(e)}`;
+        if (summary) summary.textContent = `${UI_TEXT.static.errorPrefix}: ${String(e)}`;
     } finally {
+        archiveStatsRefreshInFlight = false;
         if (btn) btn.disabled = false;
+        if (toolbarBtn) toolbarBtn.disabled = false;
     }
 }
 
@@ -19,7 +28,7 @@ function renderArchiveStats(stats: ArchiveStats): void {
     const lastLabel = document.getElementById('statsLastScannedLabel');
     if (lastLabel) {
         const dt = new Date(stats.scannedAt);
-        lastLabel.textContent = `${UI_TEXT.static.statsScannedAt}: ${dt.toLocaleString()}`;
+        lastLabel.textContent = `${UI_TEXT.static.statsScannedAt}: ${formatUiDateTime(dt)}`;
     }
 
     renderStatsSummary(stats);