Store Review CID for IPFS Reference

[Naomi-Gift]

Description:

All review text should be stored off-chain, with only the IPFS CID stored on-chain. This allows the contract to reference review content efficiently while keeping on-chain storage minimal.

Expected Behavior:

CID is stored on-chain and associated with the project ID and reviewer address.

Any fetch function returns the CID to enable frontend retrieval from IPFS.

Implementation Notes:

Ensure CID format validation.

Consider gas efficiency when storing multiple reviews per project.

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[iammrjude]

@iammrjude has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hi @HubDApp.
I'd like to work on this issue.

My plan:

1. Add a submit_review(env, reviewer, project_id, cid) function that stores the IPFS CID on-chain keyed by project ID and reviewer address
2. Add CID format validation before storing
3. Add get_review_cid(env, project_id, reviewer) and get_project_reviews(env, project_id) fetch functions that return CIDs for frontend IPFS retrieval
4. Use efficient storage structure to handle multiple reviews per project without excessive gas cost
5. Write tests for successful CID storage, invalid CID format, and CID retrieval

My background: Rust, Solidity, Python, JavaScript, and Next.js. I can deliver this in 4 hours.
Can you assign this to me?

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

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Congratulations, @iammrjude! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on February 26, 2026.

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