Summary

Fixes missing Feishu image attachment support in the send_message tool.

Changes

• Bug fix: _send_feishu was never receiving media_files — they were always None (line 567 was missing the parameter)
• New feature: Feishu now supports MEDIA:<path> tags in messages, just like Telegram/Discord/Matrix/Weixin/Signal
• Added Feishu to the "media-only" permission list (error when sending only media without text)
• Added Feishu to the "media omission warning" skip list

Root cause

The _send_feishu call at line 567 was missing media_files=media_files:

# Before (broken)
result = await _send_feishu(pconfig, chat_id, chunk, thread_id=thread_id)

# After (fixed)
result = await _send_feishu(pconfig, chat_id, chunk, media_files=media_files if is_last else [], thread_id=thread_id)

Testing

Verified with curl against the Feishu Open API — image upload and message sending work correctly.