Question juridique clé
Whether the constitutional complaint was admissible against the refusal to extend the residence permit
Solution extraite
The complaint was inadmissible because no legally cognizable right to a permit extension was shown.
Motifs extraits
A public-law appeal would require an enforceable right under Art. 83(c)(2) BGG; the applicant failed to show a continuing entitlement under Art. 43 AuG or a family-life claim under Art. 8 ECHR.