Check affiliate code availability

GET https://api.fuul.xyz/api/v1/affiliates/codes/{code}

Checks if an affiliate code is available for use.

A code is considered available (available: true) if:

• The code exists AND
• The code has unlimited uses (max_uses is null), OR
• The code has not reached its maximum uses (uses < max_uses)

Returns available: false if:

• The code does not exist, OR
• The code has reached its maximum uses