- Redesign LoginPage with minimal professional style
- Remove animated gradient backgrounds and floating orbs
- Remove marketing claims (99% accuracy, enterprise-grade)
- Center login form with clean card design
- Add multi-language support (zh-TW, en-US)
- Create LanguageSwitcher component in sidebar
- Add en-US.json translation file
- Persist language preference in localStorage
- Remove unused top header bar with search
- Move language switcher to sidebar user section
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
