Questione giuridica chiave
Whether the appeal against the cantonal seizure-opposition decision was admissible.
Decisione estratta
The appeal was admissible as a final cantonal civil matter concerning provisional measures, but only constitutional grievances could be examined.
Motivazione estratta
The decision on seizure opposition is final and in last cantonal instance; under Article 98 LTF, review is limited to constitutional rights, subject to strict substantiation.