Staking: Add flexible lock periods

[LaGodxy]

Allow users to choose different lock periods for different rewards.

[Johnpii1]

@Johnpii1 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hello Sir,

I recently came across your project and I’m very interested in contributing to the team.

I have experience working with React to build responsive and user-friendly interfaces, and I also have a solid understanding of smart contracts and blockchain fundamentals. I enjoy writing clean, scalable code and focusing on improving overall user experience.

I’m a fast learner, highly motivated, and available to get started immediately. I would appreciate the opportunity to contribute and would be glad to discuss the next steps.

Thank you for your time and consideration. I look forward to hearing from you.

Best regards,
Johnpaul

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Johnpii1 to this issue.

[RaymondAbiola]

@RaymondAbiola has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi, I’d like to work on this issue. I have experience with rust, Solidity, frontend, and backend development, and I’m confident I can deliver a clean solution.

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

[dzekojohn4]

@dzekojohn4 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I am an experienced developer, can I resolve this?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @dzekojohn4 to this issue.

[drips-wave]

Congratulations, @dzekojohn4! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @dzekojohn4: 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.

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