Personal Access Token

What
Add internationalization (i18n) support to the Codex desktop app, starting with Simplified Chinese (zh-CN) localization.

Why
Many developers in China and Chinese-speaking regions use Codex daily but the UI is only available in English. This creates a significant barrier to entry and reduces productivity for non-English speakers.

Scope

• Menu bar items (File, Edit, View, etc.)
• Sidebar panels (Threads, Projects, Settings)
• Dialogs and confirmation messages
• Error messages and notifications
• Onboarding/welcome screens
• All other visible UI strings

Implementation Suggestions

• Extract all UI strings into a localization layer (e.g., JSON translation files)
• Detect system locale or respect localeOverride in config.toml