Governor Maggie Hassan is unveiling her spending plan for New Hampshire for the next two years on Valentine’s Day. It is the first budget for Hassan, a Democrat, and many whose programs were cut during the past two years are hoping she will restore spending to what it was before the current Republican-passed budget. Hassan has emphasized the need to restore state aid to higher education. But she also has been clear that spending cannot return to prior levels overnight. The focus Thursday not only will be on which programs she boosts, but also how much she estimates the state will collect in revenues to pay for them. The House next works on the budget that takes effect July 1.