Implant apps use hierarchical groups: implant/map, implant/wiki,
implant/journal, etc. Apps are mutually exclusive with each other
and with gameplay. Opening implant/map hides gameplay + any other
implant app. Closing returns to gameplay.
API: open_app(), close_app(), toggle_app(), is_app_active().
Star map uses implant/map. Future apps register their own group.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New HudGroups autoload manages show/hide of related HUD elements as
groups. Exclusive groups (gameplay, implant) are mutually exclusive —
opening the star map hides stance indicator, minimap, interaction
prompts, etc. Closing it restores them.
Gameplay nodes registered in main.gd _ready(). Star map registers as
implant group and uses toggle_group() instead of direct visibility.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>