SongZijianlove/dsh-phone-drop

LAN phone drop: a QR code on the computer screen opens a page on the phone, and photos or scanned documents land in a computer folder over the local network, with no tunnel and no cloud in between. Document mode binarizes locally in the browser (adaptive threshold plus speckle removal and edge crop) so an ordinary phone photo comes out as a black-and-white scan. Adds a "phone drop" entry at the foot of the DSH sidebar that opens the QR page, plus a phone_drop tool for the assistant; the same CLI also runs standalone without DSH.