Seven nit-level fixes from PR review:
- Remove dead signal insert_deactivated from ImplantApp; the hook method
on_insert_deactivated() is the actual contract.
- Rewrite _on_atlas_economics_link comment in main.gd to reflect the
actual flow (AtlasApp closes as a consequence of HudGroups single-
active-app, not before emitting anything).
- Document the "pop never empties below default" invariant on
ImplantNavStack.pop() with a pointer to reset_to_default.
- Add _mutating re-entrancy guard on ImplantNavStack mutation methods.
push_error + early return if called during a screen_changed emission.
- main.gd registry loop now uses typed ImplantAppManifest property
access (manifest.app_path, manifest.default_key) instead of
dictionary-style .get() calls. Empty app_path triggers push_warning.
- Document the economics [/] hotkey exception in main.gd and reference
the planned handle_global_key lifecycle hook. Arch doc Follow-up
section gains a bullet for the new hook.
- Comment the independent-version-read rationale above client_ver and
proto_ver in loading_screen.gd.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.6
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