feat(ui): introduce ImplantApp pattern — base class, registry, atlas + economics refactor (#844, #824, #836)
Establishes the ImplantApp faux-mobile-OS architecture (D-191):
Foundation:
- ImplantAppManifest (Resource): @export vars for app_path, scene_path, default_key, default_mode, preserves_state
- ImplantNavStack (Node): push/pop/replace/reset_to_default, synchronous screen_changed signal
- ImplantApp (Control base class): absorbs HudGroups boilerplate; on_install/on_open/on_close/on_insert_deactivated lifecycle hooks
- ImplantRegistry (autoload): lazy-scans res://ui/implant/apps/*/app.tres; avoids autoload parse-order trap
Atlas app (replaces atlas_panel + atlas_reach_map + atlas_system_map + atlas_planet_map + root viewer files):
- apps/atlas/app.tres — manifest (implant/map, FULLSCREEN, key=M)
- apps/atlas/atlas_app.gd — coordinator; 4-screen nav via ImplantNavStack
- apps/atlas/screens/{reach,system,planet,regional}_screen.gd — enter/leave interface
- apps/atlas/{atlas_viewer,atlas_marker_overlay,atlas_overlay_bar}.gd — moved from root
Economics app (replaces economics_panel):
- apps/economics/app.tres — manifest (implant/economics, INSERT, key=N)
- apps/economics/economics_app.gd — thin shell delegating to OverviewScreen
- apps/economics/screens/overview_screen.gd — full panel logic, enter/leave interface
Wiring:
- project.godot: add ImplantRegistry autoload after HudGroups
- main.gd: registry-driven key toggle loop; rename atlas_panel→atlas_app, economics_panel→economics_app
- hud.tscn: swap to new scene paths; remove legacy StarMap node
- snapshot_consumers.gd: on_insert_deactivated() uniformly; rename vars
- hud_groups.gd: remove stale starchart compat comment
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
jpmschweitzerandClaude Sonnet 4.6
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