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l0ng-ai
a61bd486d3
Two conflicts, both where main's graphics work and this branch's observer work touched the same lines. daemon/protocol.rs: both sides appended frame kinds. INPUT_ACK (51) and IMAGE/DELETE_IMAGE (60/61) do not collide; both kept. daemon/pane.rs: main taught the reader to forward a chunk as an ordered GraphicsFrame sequence instead of one Output, so an image lands at the cursor cell the sender drew it at. This branch had lifted the same send into fan_out_output, which also feeds read-only observers and holds each to its budget. fan_out_output now takes the frame sequence: the no-graphics fast path still sends one Output, and Image frames reach observers as well, gated on their own length. A Delete selector rides `notify`, which is ungated but still drops an observer that has stopped draining — matching the drain accounting in server.rs. An observer is a read-only mirror of the pane, so it sees images for the same reason it sees text.