feat: buyer purchase history / license library ("My Beats" page)

[brightpixel-dev]

Difficulty: Hard · Priority: Critical

Overview

There's no page showing what a connected wallet has purchased. getLicense(holder, sampleId) already exists in crate.ts but is never called anywhere. Add a "My Beats" library page.

Acceptance Criteria

• New route/page listing samples the connected wallet owns a license for
• Each entry shows license tier and a working IPFS download link
• Ownership reconfirmed via getLicense before exposing the download link
• Persists across sessions (not just the transient post-purchase state in SampleDetail)

Technical Approach

No on-chain "list samples owned by X" function exists — build a per-address purchase index from purchase_license events (reuse the event-polling approach from the notifications issue), cache resolved sample data client-side keyed by wallet.

The contract's read surface doesn't support this query shape at all, so the indexing/caching layer has to be built from scratch client-side rather than a simple new API call.

[ebubeb683-ship-it]

Hello boss, Please assign this issue to me. i checked it out and im confident i will solve it
my eta is 4 hours

[TCROWN10]

I would love to work on this issue

[grantfox-oss]

🦊 GrantFox — @TCROWN10 has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #10)
2. Your PR will be reviewed by the Crate-Protocol maintainers

Good luck! Track your progress on GrantFox.