Farming and graduated token claims

On Farming, an unclaimed allocation exposes claimAndStake(tokenId). The call moves the allocation into Farming and stakes it; there is no separate user claim method.

Farming distributes the ETH and token rewards funded at graduation or in later periods. The production period is 7 days; a new period starts after the current one ends and new rewards are deposited.

Call unstake(amount), wait 18 seconds, then call withdraw(). Farming shows the countdown and enables withdraw when the lock expires; reward claiming is separate.