fix(inbox): improve quick-create notification to show issue title prominently

The inbox notification for quick-create showed "Created MUL-1577: <title>"
which truncated the actual issue title. Now the title field shows just the
issue title (the most useful info), and the detail label shows "Created
MUL-XXXX" as context.

packages/views/inbox/components/inbox-detail-label.tsx

@@ -88,6 +88,11 @@ export function InboxDetailLabel({ item }: { item: InboxItem }) {
       if (emoji) return <span>Reacted {emoji} to your comment</span>;
       return <span>{typeLabels[item.type]}</span>;
     }
+    case "quick_create_done": {
+      const identifier = details.identifier;
+      if (identifier) return <span>Created {identifier}</span>;
+      return <span>{typeLabels[item.type]}</span>;
+    }
     default:
       return <span>{typeLabels[item.type] ?? item.type}</span>;
   }

server/internal/service/task.go

@@ -1436,7 +1436,7 @@ func (s *TaskService) notifyQuickCreateCompleted(ctx context.Context, task db.Ag
 		Type:          "quick_create_done",
 		Severity:      "info",
 		IssueID:       issue.ID,
-		Title:         fmt.Sprintf("Created %s: %s", identifier, issue.Title),
+		Title:         issue.Title,
 		Body:          pgtype.Text{},
 		ActorType:     pgtype.Text{String: "agent", Valid: true},
 		ActorID:       task.AgentID,