- Added isFreeTier() helper to match 'free', 'free-tier', or any tier starting with 'free' - Replaced all hardcoded 'FREE' comparisons with isFreeTier() calls - Fixes issue where FREE tier users couldn't authenticate due to tier ID mismatch - Added comprehensive debug logging for troubleshooting (ANTIGRAVITY_DEBUG=1) - Verified: onboardUser API now correctly called for FREE tier users 🤖 Generated with assistance of OhMyOpenCode (https://github.com/code-yeongyu/oh-my-opencode)