Denver’s revamped migrant program in recent days began enrolling the roughly 800 people who are expected to be the first beneficiaries of a new approach city leaders consider innovative. Participants will receive six months of housing, help with living costs, job training and legal support as the city files asylum claims on their behalf in an effort to get them qualified for work permits. Those are the “haves” among the city’s migrant community, the people who qualify for the narrower, more intensive — and less expensive — scope of the city’s new strategy, announced by Mayor Mike Johnston last month. But there will be many more “have-nots” under the city’s retooled migrant response.