Fixed: Streaks and Loyalty now say what each one rewards

Streaks and Loyalty are two separate retention programs in Subi's admin, and merchants on setup calls could not tell them apart. Their wording now says what each one rewards.

The Loyalty tile now reads "Customers earn points on every order and spend them on rewards." The Streaks tile now reads "Give a reward when a subscription reaches a set number of orders in a row."

The two programs also point to each other. The Streaks empty state ends with "To give points on every order instead, use the Loyalty program." and the Loyalty introduction adds "To reward a subscription that reaches a set number of orders in a row, use Streaks."

This is copy only: no setting, plan, gate, subscription, or contract behavior changes in either program. The new wording is in English first; other languages follow once the translation sync picks up the updated text.