feat: seamless auto-update via electron-updater, multi-select filters, session restore

- electron-updater wired with Gitea API discovery: setFeedURL dynamically
  per release (Gitea 1.24.7 lacks /releases/latest/download/ shortcut).
  Differential download via .blockmap saves ~70 MB per patch. Renderer
  banner shows states: available → downloading X% → ready. User clicks
  "Установить и перезапустить" → quitAndInstall replaces files + relaunches.
- Multi-select filters per user spec: genres AND (TMDB with_genres comma-
  joined), countries OR (pipe-joined into with_origin_country /
  with_original_language), years OR (fan-out one request per year, merge
  by id since TMDB has no discrete-year OR). Rating stays single threshold.
- Session persistence: openedSession {tabs, activeName} saved to config
  on tab create/show/hide/remove/in-app navigation, plus before-quit.
  Restored after did-finish-load via ipcMain.emit('create-view',...) per
  tab. Survives auto-update relaunch — bring user back to the same page.
- electron-builder publish config (generic provider) so latest.yml is
  generated during build.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/Header.tsx

@@ -110,12 +110,24 @@ const Header: React.FC<HeaderProps> = ({ activeApp, setActiveApp, onAppsChange,
   const showSearchIcon = activeApp === 'home' || activeApp === 'movie-search'
 
   const [isKiosk, setIsKiosk] = useState(true)
-  const [updateInfo, setUpdateInfo] = useState<{ version: string; currentVersion?: string; releaseUrl: string; installerUrl: string; installerName?: string } | null>(null)
+  type UpdateStatus =
+    | { state: 'available'; version: string; currentVersion?: string }
+    | { state: 'downloading'; percent: number; bytesPerSecond?: number; transferred?: number; total?: number; version?: string; currentVersion?: string }
+    | { state: 'ready'; version: string; currentVersion?: string }
+    | { state: 'manual'; version: string; currentVersion?: string; installerUrl: string; installerName?: string }
+    | { state: 'error'; message: string }
+  const [updateStatus, setUpdateStatus] = useState<UpdateStatus | null>(null)
 
   useEffect(() => {
     if (!window.electron) return
-    const off = window.electron.on('update-available', (info: { version: string; currentVersion?: string; releaseUrl: string; installerUrl: string; installerName?: string }) => {
-      setUpdateInfo(info)
+    const off = window.electron.on('update-status', (info: UpdateStatus) => {
+      setUpdateStatus(prev => {
+        // Preserve version across state transitions when payload omits it (download-progress)
+        if (info.state === 'downloading' && prev && 'version' in prev && prev.version) {
+          return { ...info, version: info.version || prev.version, currentVersion: info.currentVersion || ('currentVersion' in prev ? prev.currentVersion : undefined) }
+        }
+        return info
+      })
     })
     return off
   }, [])
@@ -278,13 +290,39 @@ const Header: React.FC<HeaderProps> = ({ activeApp, setActiveApp, onAppsChange,
         )}
       </div>
 
-      {updateInfo && (
+      {updateStatus && updateStatus.state !== 'error' && (
         <div className="update-banner">
-          <span>Доступна версия {updateInfo.version}{updateInfo.currentVersion ? ` (текущая ${updateInfo.currentVersion})` : ''}</span>
-          <button className="update-banner-btn" onClick={() => window.electron?.createView('Обновление', updateInfo.installerUrl, '', 1.0, false)}>
-            {updateInfo.installerName ? 'Скачать установщик' : 'Открыть релиз'}
-          </button>
-          <button className="update-banner-close" onClick={() => setUpdateInfo(null)}>✕</button>
+          {updateStatus.state === 'available' && (
+            <>
+              <span className="update-banner-spinner" />
+              <span>Загружается обновление {updateStatus.version}{updateStatus.currentVersion ? ` (текущая ${updateStatus.currentVersion})` : ''}…</span>
+            </>
+          )}
+          {updateStatus.state === 'downloading' && (
+            <>
+              <span>Скачивается {updateStatus.version || 'обновление'}: {updateStatus.percent}%</span>
+              <div className="update-banner-progress">
+                <div className="update-banner-progress-bar" style={{ width: `${updateStatus.percent}%` }} />
+              </div>
+            </>
+          )}
+          {updateStatus.state === 'ready' && (
+            <>
+              <span>Версия {updateStatus.version} готова к установке</span>
+              <button className="update-banner-btn" onClick={() => window.electron?.installUpdate?.()}>
+                Установить и перезапустить
+              </button>
+            </>
+          )}
+          {updateStatus.state === 'manual' && (
+            <>
+              <span>Доступна {updateStatus.version}{updateStatus.currentVersion ? ` (текущая ${updateStatus.currentVersion})` : ''}</span>
+              <button className="update-banner-btn" onClick={() => window.electron?.createView('Обновление', updateStatus.installerUrl, '', 1.0, false)}>
+                Скачать установщик
+              </button>
+            </>
+          )}
+          <button className="update-banner-close" onClick={() => setUpdateStatus(null)}>✕</button>
         </div>
       )}