v1.3.030 — AI Desktop Pet Steam update #4168920

v1.3.030 — 2026-09-02 New Character cards can now be imported and exported as structured JSON. Standard V1, V2 and V3 PNG or JSON cards are accepted. Export automatically creates a V3 PNG when the card has a usable portrait, or JSON when it does not; cards with multiple linked world books let you choose which one to embed. World books can now be imported and exported as widely compatible JSON. Compatible world-book data embedded in PNG files can also be imported. Improvements Editable character cards now use structured V3 JSON as their canonical data. Existing Markdown cards receive a matching JSON copy while the original file remains untouched for rollback to an older app version. This removes Markdown-heading ambiguity without discarding existing data. Character-card and world-book round trips preserve data the app does not edit. Standard fields, extension data, asset declarations, emb...