feat: implement conversation mute and favorite functionality with corresponding notification suppression.

src/notifications/notifications.service.ts

@@ -347,6 +347,18 @@ export class NotificationsService implements OnModuleInit {
     messagePreview: string;
     conversationId: string;
   }) {
+    // Check if the recipient has muted this conversation
+    const conversation = await this.prisma.conversation.findUnique({
+      where: { id: event.conversationId },
+      include: { agentProfile: { select: { userId: true } } },
+    });
+
+    if (conversation) {
+      const isUser = conversation.userId === event.recipientUserId;
+      const isMuted = isUser ? conversation.userMuted : conversation.agentMuted;
+      if (isMuted) return; // Skip notification for muted conversations
+    }
+
     const prefix = await this.getRoutePrefix(event.recipientUserId);
     const actionUrl = `${prefix}/message?conversationId=${event.conversationId}`;