Normalizes an ArcadeDB command/query response envelope into a list of rows.
Strips @props (serializer noise on projection rows) but KEEPS the record and
graph identity keys the data layer needs: @rid, @type, @cat ("v"/"e"),
@in, @out (edges only). Probe-verified — spec §15 P4/P5/P15.
Summary
Functions
Extract result, strip @props per row; return {:ok, rows}.