Security Fixes:
- Configure Express trust proxy to properly detect client IPs behind nginx reverse proxy
- Remove deprecated isLocalhost() function that was vulnerable to IP spoofing
- Ensure /ssh/db/host/internal endpoint uses secure token-based authentication only
Internationalization Improvements:
- Replace hardcoded English strings with proper i18n keys in admin settings
- Complete SSH configuration documentation translation (sshpass, server config)
- Add missing translation keys for Debian/Ubuntu, macOS, Windows installation methods
- Fix Chinese translation key mismatches for SSH server configuration options
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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