Benachrichtigungen: ntfy ersetzt durch Discord-Webhooks

User-Wunsch: Discord statt ntfy. notify.ts sendet jetzt einen JSON-Webhook-POST
({username, content} mit fettem Titel + Nachricht, auf Discords 2000-Zeichen-
Limit gekappt) statt ntfy-Headern. Emoji-Status im Titel (OK/Fehler/Ziel-
flagge) ersetzt Priority/Tags. Settings-UI: Label/Placeholder/Hinweis auf
Discord-Webhook umgestellt (Servereinstellungen -> Integrationen -> Webhooks).
Hooks, Dedup und Guards unveraendert. Tests auf das JSON-Format angepasst
(inkl. Discord-204-Antwort und 2000-Zeichen-Cap).

src/main/download-manager.ts

@@ -10496,10 +10496,8 @@ export class DownloadManager extends EventEmitter {
     }
     this.notifiedPackages.add(pkg.id);
     void sendNotification(url, {
-      title: kind === "completed" ? "Paket fertig" : "Paket fehlgeschlagen",
-      message: `${pkg.name}\n${detail}`,
-      priority: kind === "failed" ? "high" : "default",
-      tags: kind === "completed" ? "white_check_mark" : "x"
+      title: kind === "completed" ? "✅ Paket fertig" : "❌ Paket fehlgeschlagen",
+      message: `${pkg.name}\n${detail}`
     });
   }
 
@@ -12122,10 +12120,8 @@ export class DownloadManager extends EventEmitter {
     this.session.summaryText = `Summary: Dauer ${duration}s, Ø Speed ${humanSize(avgSpeed)}/s, Erfolg ${success}/${total}`;
     if (this.settings.notifyOnRunFinished && total > 0) {
       void sendNotification(this.settings.notifyUrl, {
-        title: "Durchlauf beendet",
-        message: `${success}/${total} erfolgreich, ${failed} fehlgeschlagen, ${cancelled} abgebrochen\nDauer ${duration}s, Durchschnitt ${humanSize(avgSpeed)}/s`,
-        priority: failed > 0 ? "high" : "default",
-        tags: failed > 0 ? "warning" : "checkered_flag"
+        title: failed > 0 ? "⚠️ Durchlauf beendet" : "🏁 Durchlauf beendet",
+        message: `${success}/${total} erfolgreich, ${failed} fehlgeschlagen, ${cancelled} abgebrochen\nDauer ${duration}s, Durchschnitt ${humanSize(avgSpeed)}/s`
       });
     }
     this.runItemIds.clear();

src/main/notify.ts

@@ -3,30 +3,24 @@ import { logger } from "./logger";
 export interface NotifyPayload {
   title: string;
   message: string;
-  priority?: "default" | "high";
-  tags?: string;
 }
 
 const NOTIFY_TIMEOUT_MS = 5000;
+const WEBHOOK_USERNAME = "Real-Debrid Downloader";
 
 export function isNotifyUrlValid(url: string): boolean {
   return /^https?:\/\/\S+$/i.test(String(url || "").trim());
 }
 
 export function buildNotifyRequest(url: string, payload: NotifyPayload): { url: string; init: RequestInit } {
-  const headers: Record<string, string> = {
-    "Title": payload.title,
-    "Content-Type": "text/plain; charset=utf-8"
-  };
-  if (payload.priority && payload.priority !== "default") {
-    headers["Priority"] = payload.priority;
-  }
-  if (payload.tags) {
-    headers["Tags"] = payload.tags;
-  }
+  const content = `**${payload.title}**\n${payload.message}`.slice(0, 2000);
   return {
     url: String(url || "").trim(),
-    init: { method: "POST", headers, body: payload.message }
+    init: {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ username: WEBHOOK_USERNAME, content })
+    }
   };
 }