Support Threads topic_tag in platformSpecificData

[miniclawdbot-droid]

Feature Request

Meta's Threads API added support for topic_tag in July 2025, allowing posts to be categorized under topics (Technology, Science, Entertainment, etc.) for better discoverability.

Current behavior

When passing topic_tag via platformSpecificData for Threads posts:

{
  "platforms": [{
    "platform": "threads",
    "accountId": "...",
    "platformSpecificData": {
      "topic_tag": "technology"
    }
  }]
}

The field is stored in Late's response but not passed through to Meta's Threads API. The published post on Threads has no topic attached.

Expected behavior

topic_tag in platformSpecificData should be forwarded to Meta's Threads API when creating the media container, so the post appears under the specified topic on Threads.

Reference

• Threads API Changelog (July 14, 2025) — "Support for creating posts with topic tags via a topic_tag parameter has been added."
• Meta docs: https://developers.facebook.com/docs/threads/posts/

This is a significant discoverability feature for Threads. Topic-tagged posts get surfaced in topic feeds, which is especially valuable for smaller accounts trying to grow.