The NTV2 upload-response decoder used stub schemas that omitted fields
QQ NT echoes back (notably video.fromScene/toScene, pic.fromScene/
toScene/oldFileId, the ptt scene/waveform set), so finalizeMediaMsgInfo
re-encoded the commonElem.pbElem with those fields missing. For c2c
video this triggered `send private message rejected: result=79` on
every send_private_msg [{type:'video'}] call — the upload itself
fast-pathed fine but the follow-up SendMessage was rejected by NT.
Drop the duplicate NTV2 placeholder schemas and route NTV2ExtBizInfo
through the element-side PicExtBizInfo / VideoExtBizInfo /
PttExtBizInfo, which are field-complete. Also zero out the main
video sub-file's width/height/time/videoFormat in the upload request
to mirror NapCat — those fields belong on the thumb, not the source
mp4, and non-zero values trip schema validation on c2c sends.
DrSmoothl
00a70b1ccc