Implement stream reward points system accumulating points per stroop streamed for loyalty incentives

[Chuks-coderr]

Description

Add a reward points ledger in contract instance storage that accrues points for each address proportionally to the total value they have streamed. A getRewardPoints entry point returns a sender's accumulated points. Points can be redeemed via a redeemPoints entry point that applies a fee discount on the next stream creation proportional to points spent.

Acceptance Criteria

• Feature is fully implemented
• Tests pass
• Lint/type checks pass
• PR references this issue number

Notes

⚠️ Do not begin coding until you have been assigned by the maintainer.
Branch as feat/516-contract-reward-points where N is this issue number.

[oluwa1to9-web]

@oluwa1to9-web has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

please assign me

ℹ️ Repo Maintainers: To accept this application, review their application or assign @oluwa1to9-web to this issue.

[danieloche635-bit]

@danieloche635-bit has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

sir i can work on this issue sir

ℹ️ Repo Maintainers: To accept this application, review their application or assign @danieloche635-bit to this issue.

[drips-wave]

Congratulations, @danieloche635-bit! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @danieloche635-bit: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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