otc package

Package otc is an over-the-counter desk for GRC20 tokens against GNOT.

A maker escrows one side of a trade in this realm; a taker fills it with the other side, and both halves move in the same transaction or not at all. Every offer has exactly one GRC20 side and one GNOT side (R1), is filled in full or not at all (R8), and can be cancelled by its maker at any moment, paused or not (R10).

WHAT THE ADMIN CANNOT DO (A3). admin.gno sets fees within a constant cap, manages the token whitelist, pauses new offers and fills, and hands the role on. No function anywhere moves, freezes or cancels an escrow except Fill (to the taker) and Cancel (to the maker, called by the maker).

UPGRADES. A realm is immutable. If a bug is found the plan is: pause, deploy a new path (.../otc/v2), and keep this one readable so makers can still cancel here — which pause never blocks.