Add user activity feed model and endpoint

[Akatenvictor]

What

Add a user activity feed entity that records actions like uploads, purchases, follows, and saves for social discovery.

Why

Activity feeds provide social context and help users discover content through their network's actions. This drives engagement and organic content discovery.

Scope

• In: ActivityFeed entity, activity recording hooks, feed endpoint, feed pagination
• Out: Activity filtering, activity notifications, activity privacy controls

Acceptance Criteria

• ActivityFeed entity with: userId, actionType, targetId, targetType, metadata, createdAt
• Action types: song_upload, song_purchase, artist_follow, song_save, album_release
• GET /api/feed/me returns activities from followed artists and self
• GET /api/users/:id/activities returns public activities for a user
• Cursor-based pagination for efficient feed traversal
• Activities older than 90 days are excluded from feed queries
• Activity recording is non-blocking (async)

Technical Context

• New ActivityFeed entity in src/entities/
• ActivityService in src/services/
• ActivityController in src/controllers/
• Feed endpoint on user or new feed routes
• Hooks in SongService, MarketplaceService, ArtistProfileService for recording
• Database index on userId and createdAt for feed query performance

[JafetCHVDev]

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

Hello Team,

My Background

My name is Cristian, and I’m a passionate full-stack developer from Costa Rica 🇨🇷💻. I’m excited about the opportunity to contribute to your Stellar-based project during Drips Wave! 🌊
I enjoy building web applications that combine clean user interfaces with solid back-end logic and reliable databases.

Experience

I have experience developing web applications using technologies such as React, .NET Core, SQL Server, and Firebase. I’ve worked on projects that include role-based systems, CRUD platforms, booking systems, and data-driven web apps.
While I’m still growing in Web3 and blockchain, I’m highly motivated to learn and apply these technologies, especially within the Stellar ecosystem.

I’m driven by the opportunity to improve my skills, collaborate with a talented team, and make a meaningful contribution to your project.

Links

You can find my profiles and links here:

GitHub: https://github.com/JafetCHVDev

Thank you for considering my candidacy. I am excited about the opportunity to contribute to this project and create a positive impact. Please let me know if you have any questions or need additional information.

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

[GauravKarakoti]

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

Allow me to work on this one

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[Stanley-Owoh]

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

Hello maintainer,

I came across your project and I’m really interested in contributing.

I have experience with React for building responsive, user-friendly interfaces, and I’m also familiar with smart contracts and blockchain basics. I focus on writing clean, scalable code and improving user experience.

I’m a fast learner and ready to get started immediately. Please let me know the next steps.

Thank you.

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

[Banx17]

@Banx17 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

please kindly assign this to me

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[oladeeayo]

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

I am interested in this issue

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[karanjakevin39-collab]

@karanjakevin39-collab has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer can i work on this issue ?

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[smith961]

@smith961 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would like to work on this issue

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[mallison031]

@mallison031 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

i will like to work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @mallison031 to this issue.

[drips-wave]

Congratulations, @mallison031! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @mallison031: 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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🌊 Happy Wave 🌊

[drips-wave]

This issue has been completed by @mallison031 as part of the Stellar Wave Program's 8th Wave 🥳

😎 @mallison031: 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.

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