Remove the redundant header row, tighten spacing, and square off question cards. Also adjust answered question container styling to match tool call layout.
Use token-backed surface/background classes for the question tool cards and ensure radio/checkbox inputs use accent-color so the view renders correctly in both light and dark themes.
Converts hardcoded UI copy to i18n keys across the app, adds global translation for non-component modules, and splits the English catalog into feature modules with duplicate-key detection.
