Notification-Bot: Discord-Benachrichtigungen für Streams

- Neues Notification-Plugin mit eigenem Discord-Bot
- Admin-Modal im Streaming-Tab für Channel-Konfiguration
- Automatische Benachrichtigungen bei Stream-Start/Ende
- Stream-Links mit Passwort-Hinweis in Discord-Embeds
- Konfigurierbare Events pro Channel (stream_start, stream_end)

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

server/src/plugins/streaming/index.ts

@@ -3,6 +3,7 @@ import { WebSocketServer, WebSocket } from 'ws';
 import crypto from 'node:crypto';
 import type { Plugin, PluginContext } from '../../core/plugin.js';
 import { sseBroadcast } from '../../core/sse.js';
+import { notifyStreamStart, notifyStreamEnd } from '../notifications/index.js';
 
 // ── Types ──
 
@@ -73,6 +74,19 @@ function endStream(streamId: string, reason: string): void {
     broadcaster.broadcastStreamId = undefined;
   }
 
+  // Send Discord notification
+  const durationMs = Date.now() - new Date(stream.startedAt).getTime();
+  const durationMin = Math.floor(durationMs / 60000);
+  const durationH = Math.floor(durationMin / 60);
+  const durationM = durationMin % 60;
+  const durationStr = durationH > 0 ? `${durationH}h ${durationM}m` : `${durationM}m`;
+  notifyStreamEnd({
+    broadcasterName: stream.broadcasterName,
+    title: stream.title,
+    viewerCount: stream.viewerCount,
+    duration: durationStr,
+  }).catch(err => console.error('[Streaming] Notification error:', err));
+
   streams.delete(streamId);
   broadcastStreamStatus();
   console.log(`[Streaming] Stream "${stream.title}" ended: ${reason}`);
@@ -130,6 +144,13 @@ function handleSignalingMessage(client: WsClient, msg: any): void {
         }
       }
       console.log(`[Streaming] ${name} started "${title}" (${streamId.slice(0, 8)})`);
+      // Send Discord notification
+      notifyStreamStart({
+        streamId,
+        broadcasterName: name,
+        title,
+        hasPassword: password.length > 0,
+      }).catch(err => console.error('[Streaming] Notification error:', err));
       break;
     }