Updated getTagSlug() to properly encode tags with spaces and non-ASCII characters (like Chinese). The function now:
- Normalizes multiple spaces/dashes to single dashes
- Properly encodes non-ASCII characters using encodeURIComponent
- Prevents issues with URL encoding on Vercel deployment
This fixes tags like "Medicine - 醫學" being displayed as "medicine---%E9%86%AB%E5%AD%B8" by generating clean URLs like "medicine-%E9%86%AB%E5%AD%B8".
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
