The Weixin adapter's send() method previously split and delivered the
raw response text without first extracting MEDIA: tags or bare local
file paths. This meant images, documents, and voice files referenced
by the agent were silently dropped in normal (non-streaming,
non-background) conversations.
Changes:
- In WeixinAdapter.send(), call extract_media() and
extract_local_files() before formatting/splitting text.
- Deliver extracted files via send_image_file(), send_document(),
send_voice(), or send_video() prior to sending text chunks.
- Also fix two minor typing issues in gateway/run.py where
extract_media() tuples were not unpacked correctly in background
and /btw task handlers.
Fixes missing media delivery on Weixin personal accounts.
498fc6780e