When sending chat messages via the API (POST /v3/workspaces/{id}/chat/channels/{id}/messages), there is no way to create native @mentions that trigger user notifications. The @Name markdown format works correctly when messages are sent from the ClickUp web UI, but when the same format is sent via the API, it renders as a regular profile link (blue underline) instead of a native mention tag (green highlight with notification). We tested all available body parameters (content, tagged_users, followers, assignee) and none of them produce native mentions. Use case: We have an automated daily digest bot that posts team status updates to product channels. We need to tag specific team members for action items, but currently the bot cannot notify them. Expected behavior: Either the @Name format should work the same way via API as it does via the web UI, or a new body parameter (e.g. mentioned_users) should be added to register mentions when creating a message.