vesting package

Package vesting holds grants of GNOT, BUBBLE or any registered GRC20 and pays each out on its own schedule: a share at the start, the rest by the day over a term, to one beneficiary, for as long as the grant's owner does not revoke it. Anyone may open a grant for anyone; nothing here is a setting but each grant's owner.

Every grant has its OWN address — the realm's sub-realm `grant-<id>` (chain.DerivePkgSubAddr) — and that is how it is funded: send the tokens there (a bank send for GNOT, Transfer for a GRC20, a holders' vote that mints BUBBLE to it). The realm moves tokens out of a grant's address and never between grants; what sits at the realm's main address belongs to nobody and stays there, so send only to a grant's address.

The schedule. Nothing before start, or before start + cliff; at start the up-front share is vested; each full day after start vests an equal share of the rest, until day Days, when all of Total has vested (Days 0: all of it at start). Claim pays the beneficiary what has vested and not yet been paid, as far as the grant's balance goes; anyone may call it, since the money has one destination. Revoke, by the owner, freezes the schedule where it stands and returns everything above what has vested to the owner; what had vested stays the beneficiary's to claim. A revoke before the up-front share has arrived (what was already paid counts as arrived) VOIDS the grant: nothing vests, and whatever lands later is the owner's to sweep. Sweep, by the owner, returns what the schedule can never owe (a gift, a double funding) without ending anything. A grant opened with no owner is irrevocable, and its excess is the beneficiary's to sweep.

Votes. BUBBLE held by a grant is self-delegated, inside the token's ledger, to the grant's own address, and this realm never delegates it or votes with it; the beneficiary's weight grows as they claim.

Immutable, not private (gnomod.toml).