[BE-96] Build the software licenses module for digital assets

[yusuftomilola]

Overview

The README explicitly covers "physical and digital assets" and calls out that "licenses are shared across teams" as a tracking problem. Licenses have seat counts and renewal dates that physical assets do not.

Tasks

• Create License (name, vendorId, licenseKey encrypted at rest, type PERPETUAL/SUBSCRIPTION, seatsTotal, startDate, expiryDate, cost, currency, autoRenew) and LicenseAssignment (licenseId, userId or assetId, assignedAt, revokedAt).
• Build CRUD plus assign and revoke endpoints.
• Enforce the seat limit — refuse assignment beyond seatsTotal with 409.
• Expose seats used versus available, and an expiring-soon query.
• Encrypt license keys at rest and redact them from list responses; reveal only to authorized roles on the detail endpoint.
• Emit renewal reminders ahead of expiry ([BE-99]).
• Generate a migration and write tests.

Acceptance Criteria

• Over-assignment beyond available seats is refused.
• License keys are encrypted at rest and never appear in list responses.
• Expiring licenses are queryable and trigger reminders.

Dependencies

Blocked by [BE-94].

Notes for Contributors

The backend is being rebuilt from a clean NestJS skeleton — backend/src/ currently contains only app.module.ts, app.controller.ts, app.service.ts, and main.ts. Follow standard NestJS module structure (module / controller / service / dto / entities) and register your module in app.module.ts. Comment below to be assigned.

[oyebolarotimi269-ai]

@oyebolarotimi269-ai has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

KIndly assign me this issue, please.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @oyebolarotimi269-ai to this issue.

[Ibinola]

@Ibinola has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello, I'm interested in taking this issue on.

I've worked on blockchain and Web3 projects, including Stellar and Soroban smart contracts, alongside traditional full-stack web development. I'm comfortable moving between frontend, backend, and on-chain work.

I've looked into this issue closely and I'm confident in my ability to deliver a high-quality implementation here.

Happy to get started right away if assigned — looking forward to contributing.

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

[drips-wave]

Congratulations, @Ibinola! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @Ibinola: 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

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊

[drips-wave]

This issue has been completed by @Ibinola as part of the Stellar Wave Program's 7th Wave 🥳

😎 @Ibinola: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

🧑‍💻 Repo maintainers: How'd the contributor do? Leave a review to share your experience working with them.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign | FWC26 campaign!

@Ibinola's PR #1244 was approved and merged by @yusuftomilola.

🏆 @Ibinola: You earned 40 FoxPoints for this contribution! Your current tier: Builder (1,292 total points). Track your full progress on GrantFox.

👏 Great work, @Ibinola! Keep contributing to DistinctCodes.