Implement i18n audit/localization cleanup and sync libstorm submodule

skills/nvgt-engine-dev/references/project-profile.md

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+# Project Profile
+
+Use this profile when project-specific guidance is missing.
+If the repo has `AGENTS.md` or equivalent, that file overrides this profile.
+
+## Default Engineering Style
+
+- Prefer clean separation of concerns.
+- Keep reusable logic in standalone modules.
+- Keep adapters/wrappers thin and obvious.
+- Favor simple, direct control flow over clever abstractions.
+
+## Naming Defaults
+
+- Functions/methods: `snake_case`
+- Variables: `camelCase`
+- Classes/types: `PascalCase`
+
+## Accessibility Defaults
+
+- Prefer NVGT accessibility APIs and native screen-reader paths.
+- Avoid unnecessary visual-only coupling in interaction flows.
+- Ensure keyboard navigation is complete and trap-free.
+
+## Audio/UI Defaults
+
+- Use stable folder conventions for project-owned assets.
+- Keep menu and notification sounds configurable by path.
+- Support `.ogg` first and allow `.wav` fallback where practical.
+
+## Refactor Rules
+
+- Extract only behavior used across multiple modules/projects.
+- Do not extract heavily game-loop-specific orchestration.
+- Preserve behavior first; optimize structure second.
+
+## Delivery Expectations
+
+- Provide concise decisions with concrete file references.
+- Explicitly state assumptions when source evidence is incomplete.
+- Prefer incremental, verifiable changes over large rewrites.