Agent 0.6.0 + App 0.5.0

Agent 0.6.0: offline parental-control enforcement on the LAN API, profile parental/subtitle fields in the offline cache, spameri catalogue fields (spameri_id, user_rating, list membership) passed through, contract-pinned against the platform. App 0.5.0 (versionCode 7): device-code sign-in on phone and TV (password login removed), ratings, recommendation shelves, spameri account status, Knivy visual identity (system font, square corners, new launcher icon).