Add retry extraction context menu, increase error text limit

- Right-click packages with extraction errors shows "Extraktion
  wiederholen" option to manually retry
- Increase WinRAR error text from 240 to 500 chars for better
  diagnostics in logs

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

src/main/app-controller.ts

@@ -208,6 +208,10 @@ export class AppController {
     return this.manager.togglePause();
   }
 
+  public retryExtraction(packageId: string): void {
+    this.manager.retryExtraction(packageId);
+  }
+
   public cancelPackage(packageId: string): void {
     this.manager.cancelPackage(packageId);
   }

src/main/download-manager.ts

@@ -2955,6 +2955,27 @@ export class DownloadManager extends EventEmitter {
     }
   }
 
+  public retryExtraction(packageId: string): void {
+    const pkg = this.session.packages[packageId];
+    if (!pkg) return;
+    if (this.packagePostProcessTasks.has(packageId)) return;
+    const items = pkg.itemIds.map((id) => this.session.items[id]).filter(Boolean) as DownloadItem[];
+    const completedItems = items.filter((item) => item.status === "completed");
+    if (completedItems.length === 0) return;
+    pkg.status = "queued";
+    pkg.updatedAt = nowMs();
+    for (const item of completedItems) {
+      if (!isExtractedLabel(item.fullStatus)) {
+        item.fullStatus = "Entpacken - Ausstehend";
+        item.updatedAt = nowMs();
+      }
+    }
+    logger.info(`Extraktion manuell wiederholt: pkg=${pkg.name}`);
+    this.persistSoon();
+    this.emitState(true);
+    void this.runPackagePostProcessing(packageId).catch((err) => logger.warn(`runPackagePostProcessing Fehler (retryExtraction): ${compactErrorText(err)}`));
+  }
+
   private removePackageFromSession(packageId: string, itemIds: string[]): void {
     const postProcessController = this.packagePostProcessAbortControllers.get(packageId);
     if (postProcessController && !postProcessController.signal.aborted) {

src/main/extractor.ts

@@ -178,7 +178,7 @@ function effectiveConflictMode(conflictMode: ConflictMode): "overwrite" | "skip"
 }
 
 function cleanErrorText(text: string): string {
-  return String(text || "").replace(/\s+/g, " ").trim().slice(0, 240);
+  return String(text || "").replace(/\s+/g, " ").trim().slice(0, 500);
 }
 
 function appendLimited(base: string, chunk: string, maxLen = MAX_EXTRACT_OUTPUT_BUFFER): string {

src/main/main.ts

@@ -314,6 +314,10 @@ function registerIpcHandlers(): void {
     validateString(packageId, "packageId");
     return controller.togglePackage(packageId);
   });
+  ipcMain.handle(IPC_CHANNELS.RETRY_EXTRACTION, (_event: IpcMainInvokeEvent, packageId: string) => {
+    validateString(packageId, "packageId");
+    return controller.retryExtraction(packageId);
+  });
   ipcMain.handle(IPC_CHANNELS.EXPORT_QUEUE, () => controller.exportQueue());
   ipcMain.handle(IPC_CHANNELS.IMPORT_QUEUE, (_event: IpcMainInvokeEvent, json: string) => {
     validateString(json, "json");