Questione giuridica chiave
Whether the federal appeal was sufficiently reasoned to challenge denial of permit renewal under the spouse-based provisions
Decisione estratta
The appeal did not adequately address the cantonal court's reasoning and therefore lacked a sufficient legal and factual foundation.
Motivazione estratta
The appellant failed to engage specifically with the decisive findings on the non-existence of a continued entitlement from the marriage; under Art. 42 and 106 BGG, such reasoned challenge is required.