feat: always notify on DM messages like Slack/Discord (#405)

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

desktop/src/shared/api/tauri.ts

@@ -148,6 +148,7 @@ type RawFeedItem = {
   created_at: number;
   channel_id: string | null;
   channel_name: string;
+  channel_type: string;
   tags: string[][];
   category: "mention" | "needs_action" | "activity" | "agent_activity";
 };
@@ -394,6 +395,7 @@ function fromRawFeedItem(item: RawFeedItem) {
     createdAt: item.created_at,
     channelId: item.channel_id,
     channelName: item.channel_name,
+    channelType: item.channel_type,
     tags: item.tags,
     category: item.category,
   };

desktop/src/shared/api/types.ts

@@ -178,6 +178,7 @@ export type FeedItem = {
   createdAt: number;
   channelId: string | null;
   channelName: string;
+  channelType?: string;
   tags: string[][];
   category: FeedItemCategory;
 };